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2017 | Electrical energy storage by a magnesium-copper-sulfide rechargeable battery Thiele, Philipp; Neumann, Johannes; Westphal, Anne; Ludwig, Ralf; Bonsa, Anne- Marie; Appelhagen, Andreas; Malcher, Peter; Köckerling, Martin | Zeitschriftenaufsatz |
2014 | Carboxylated or aminated polyaniline - multiwalled carbon nanotubes nanohybrids for immobilization of cellobiose dehydrogenase on gold electrodes Tanne, J.; Kracher, D.; Dietzel, B.; Schulz, B.; Ludwig, R.; Lisdat, F.; Scheller, F.W.; Bier, F.F. | Zeitschriftenaufsatz |
2014 | Third generation ATP sensor with enzymatic analyte recycling Yarman, Aysu; Schulz, Christopher; Sygmund, Christoph; Ludwig, Roland; Gorton, L.; Wollenberger, Ulla; Scheller, Frieder W. | Zeitschriftenaufsatz |
2013 | Comparison of force fields on the basis of various model approaches - how to design the best model for the [CnMIM][NTf2] family of ionic liquids Köddermann, T.; Reith, D.; Ludwig, R. | Zeitschriftenaufsatz |
2012 | All-optical data frequency multiplexing on single-wavelength carrier light by sequentially provided cross-phase modulation in fiber Watanabe, S.; Kato, T.; Okabe, R.; Elschner, R.; Ludwig, R.; Schubert, C. | Zeitschriftenaufsatz |
2012 | Beyond 100G - high-capacity transport technologies for next generation optical core networks Fischer, J.K.; Nölle, M.; Molle, L.; Schmidt-Langhorst, C.; Hilt, J.; Ludwig, R. | Konferenzbeitrag |
2012 | Black-box phase-sensitive fiber-optic parametric amplifier assisted by a semiconductor optical amplifier Richter, T.; Meuer, C.; Ludwig, R.; Schubert, C. | Konferenzbeitrag |
2012 | The effect of neutral ion aggregate formation on the electrical conductivity of an ionic liquid and its mixtures with chloroform Köddermann, T.; Klembt, S.; Klasen, D.; Paschek, D.; Kragl, U.; Ludwig, R. | Zeitschriftenaufsatz |
2012 | OTDM-to-WDM conversion of complex modulation formats by time-domain optical Fourier transformation Palushani, E.; Richter, T.; Ludwig, R.; Schubert, C.; Mulvad, H.C.H.; Clausen, A.T.; Oxenlowe, L.K. | Konferenzbeitrag |
2012 | Transmission of single-channel 16-QAM data signals at terabaud symbol rates Richter, T.; Palushani, E.; Schmidt-Langhorst, C.; Ludwig, R.; Molle, L.; Nölle, M.; Schubert, C. | Zeitschriftenaufsatz |
2011 | 12-Stage sequential optical FDM of 120 Gb/s (12x10 Gb/s) data in 240-GHz bandwidth using fiber cross-phase modulation with optical subcarrier signals Kato, T.; Okabe, R.; Ludwig, R.; Elschner, R.; Schubert, C.; Watanabe, S. | Konferenzbeitrag |
2011 | 8 × 448-Gb/s WDM transmission of 56-GBd PDM 16-QAM OTDM signals over 250-km ultralarge effective area fiber Fischer, J.K.; Molle, L.; Nölle, M.; Schmidt-Langhorst, C.; Hilt, J.; Ludwig, R.; Peckham, D.W.; Schubert, C. | Zeitschriftenaufsatz |
2011 | All-optical THz-band frequency multiplexing on a single optical carrier using fiber cross-phase modulation Kato, T.; Okabe, R.; Ludwig, R.; Schmidt-Langhorst, C.; Schubert, C.; Watanabe, S. | Konferenzbeitrag |
2011 | Characterization of an integrated coherent receiver for 224 Gb/s polarization multiplexed 16-QAM transmission Matiss, A.; Nölle, M.; Fischer, J.K.; Leonhardt, C.C.; Ludwig, R.; Hilt, J.; Molle, L.; Schmidt-Langhorst, C.; Schubert, C. | Konferenzbeitrag |
2011 | Coherent detection using parallel optical sampling Fischer, J.K.; Ludwig, R.; Molle, L.; Schmidt-Langhorst, C.; Leonhardt, C.C.; Matiss, A.; Schubert, C. | Konferenzbeitrag |
2011 | Coherent receiver for 100G Ethernet applications based on polymer planar lightwave circuit Kroh, M.; Wang, J.; Theurer, A.; Zawadzki, C.; Schmidt, D.; Ludwig, R.; Lauermann, M.; Beling, A.; Matiss, A.; Schubert, C.; Steffan, A.; Keil, N.; Grote, N. | Konferenzbeitrag |
2011 | Dual-quadrature coherent receiver for 100G Ethernet applications based on polymer planar lightwave circuit Wang, J.; Kroh, M.; Theurer, A.; Zawadzki, C.; Schmidt, D.; Ludwig, R.; Lauermann, M.; Zhang, Z.Y.; Beling, A.; Matiss, A.; Schubert, C.; Steffan, A.; Keil, N.; Grote, N. | Zeitschriftenaufsatz |
2011 | High-speed digital coherent receiver based on parallel optical sampling Fischer, J.K.; Ludwig, R.; Molle, L.; Schmidt-Langhorst, C.; Leonhardt, C.C.; Matiss, A.; Schubert, C. | Zeitschriftenaufsatz |
2011 | Higher-order modulation formats for spectral-efficient high-speed metro systems Freund, R.; Nölle, M.; Seimetz, M.; Hilt, J.; Fischer, J.; Ludwig, R.; Schubert, C.; Bach, H.-G.; Velthaus, K.-O.; Schell, M. | Konferenzbeitrag |
2011 | Integrated Coherent Receiver Modules for 100G Ethernet and Beyond Fischer, J.K.; Ludwig, R.; Molle, L.; Nölle, M.; Beling, A.; Leonhardt, C.C.; Matiss, A.; Umbach, A.; Kunkel, R.; Bach, H.-G.; Schubert, C. | Konferenzbeitrag |
2011 | Integrated receivers on silicon-on-insulator for advanced modulation formats Kroh, M.; Zimmermann, L.; Bach, H.-G.; Voigt, K.; Beling, A.; Nielsen, M.L.; Ludwig, R.; Bruns, J.; Unterbörsch, G. | Zeitschriftenaufsatz |
2011 | Multi-stage optical FDM of 12-channel 10-Gb/s data with 20-GHz exact channel spacing using fiber cross-phase modulation with optical subcarrier signals Kato, T.; Okabe, R.; Ludwig, R.; Elschner, R.; Schubert, C.; Watanabe, S. | Zeitschriftenaufsatz |
2011 | Performance of an integrated coherent receiver module for up to 160G DP-QPSK transmission systems Matiss, A.; Bottacchi, S.; Fischer, J.K.; Ludwig, R.; Leonhardt, C.C.; Schmidt-Langhorst, C.; Schubert, C. | Zeitschriftenaufsatz |
2011 | Polarization-insensitive 320-Gb/s in-line all-optical wavelength conversion in a 320-km transmission span Hu, H.; Nouroozi, R.; Ludwig, R.; Schmidt-Langhorst, C.; Suche, H.; Sohler, W.; Schubert, C. | Zeitschriftenaufsatz |
2011 | Simultaneous polarization-insensitive wavelength conversion of 80-Gb/s RZ-DQPSK signal and 40-Gb/s RZ-OOK signal in a Ti:PPLN waveguide Hu, H.; Nouroozi, R.; Ludwig, R.; Huttl, B.; Schmidt-Langhorst, C.; Suche, H.; Sohler, W.; Schubert, C. | Zeitschriftenaufsatz |
2011 | Single wavelength channel 10.2 Tb/s TDM-data capacity using 16-QAM and coherent detection Richter, T.; Palushani, E.; Schmidt-Langhorst, C.; Nölle, M.; Ludwig, R.; Fischer, J.K.; Schubert, C. | Konferenzbeitrag |
2011 | Transmission of a Serial 5.1-Tb/s Data Signal Using 16-QAM and Coherent Detection Palushani, E.; Schmidt-Langhorst, C.; Richter, T.; Nölle, M.; Ludwig, R.; Schubert, C. | Konferenzbeitrag |
2011 | Ultrafast transmission systems using coherent technology Ludwig, R.; Richter, T.; Palushani, E.; Schmidt-Langhorst, C.; Molle, L.; Fischer, J.K.; Noelle, M.; Elschner, R.; Schubert, C. | Konferenzbeitrag |
2010 | 110 km transmission of 160 Gbit/s RZ-DQPSK signals by midspan polarization-insensitive optical phase conjugation in a Ti:PPLN waveguide Hu, H.; Nouroozi, R.; Ludwig, R.; Schmidt-Langhorst, C.; Suche, H.; Sohler, W.; Schubert, C. | Zeitschriftenaufsatz |
2010 | 80 Gb/s multi-wavelength booster amplification in an InGaAs/GaAs quantum-dot semiconductor optical amplifier Schmidt-Langhorst, C.; Meuer, C.; Galperin, A.; Schmeckebier, H.; Ludwig, R.; Puris, D.; Bimberg, D.; Petermann, K.; Schubert, C. | Konferenzbeitrag |
2010 | All-optical level equalization of data packets using a fiber-optic parametric amplifier Richter, T.; Ludwig, R.; Fischer, J.K.; Watanabe, S.; Okabe, R.; Kato, T.; Schubert, C. | Konferenzbeitrag |
2010 | Digital coherent receiver based on parallel optical sampling Fischer, J.K.; Ludwig, R.; Molle, L.; Schmidt-Langhorst, C.; Leonhardt, C.C.; Matiss, A.; Schubert, C. | Konferenzbeitrag |
2010 | High spectral efficient phase and quadrature amplitude modulation for optical fibre transmission Freund, R.; Hilt, J.; Nölle, M.; Molle, L.; Seimetz, M.; Fischer, J.K.; Ludwig, R.; Schmidt-Langhorst, C.; Schubert, C. | Konferenzbeitrag |
2010 | High-speed digital coherent receiver with parallel optical sampling Fischer, J.K.; Ludwig, R.; Molle, L.; Schmidt-Langhorst, C.; Galperin, A.; Richter, T.; Leonhardt, C.C.; Matiss, A.; Schubert, C. | Konferenzbeitrag |
2010 | InP-basierte elektrische und elektro-optische Komponenten für 112 Gb/s OOK Systeme Schubert, C.; Makon, R.E.; Steffan, A.G.; Driad, R.; Bach, H.-G.; Mekonnen, G.G.; Zhang, R.; Ludwig, R.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2010 | Novel integrated coherent receiver module for 100 G serial transmission Matiss, A.; Ludwig, R.; Fischer, J.-K.; Molle, L.; Schubert, C.; Leonhardt, C.C.; Bach, H.-G.; Kunkel, R.; Umbach, A. | Konferenzbeitrag |
2010 | Performance of a novel integrated coherent receiver module for 100G ethernet applications and beyond Ludwig, R.; Fischer, J.K.; Matiss, A.; Molle, L.; Leonhardt, C.C.; Bach, H.-G.; Kunkel, R.; Umbach, A.; Schubert, C. | Konferenzbeitrag |
2010 | Polarization-insensitive all-optical wavelength conversion of 320 Gb/s RZ-DQPSK signals using a Ti:PPLN waveguide Hu, H.; Nouroozi, R.; Ludwig, R.; Huettl, B.; Schmidt-Langhorst, C.; Suche, H.; Sohler, W.; Schubert, C. | Zeitschriftenaufsatz |
2010 | Single- and multi-carrier techniques to build up Tb/s per channel transmission systems Freund, R.; Nölle, M.; Schmidt-Langhorst, C.; Ludwig, R.; Schubert, C.; Bosco, G.; Carena, A.; Poggiolini, P.; Oxenlowe, L.K.; Galili, M.; Mulvad, H.C.H.; Winter, M.; Hillerkuss, D.; Schmogrow, R.; Freude, W.; Leuthold, J.; Ellis, A.D.; Gunning, F.C.G; Zhao, J.; Frascella, P. | Konferenzbeitrag |
2010 | Small form factor dual balanced photoreceiver with sensitive peak-level detectors for 40 Gb/s DQPSK applications Nielsen, M.L.; Honecker, J.; Jacob, A.; Bottacchi, S.; Ludwig, R.; Unterbörsch, G.; Umbach, A. | Konferenzbeitrag |
2010 | Terabit/s single-carrier transmission based on coherent time-division demultiplexing Schmidt-Langhorst, C.; Ludwig, R.; Molle, L.; Gross, D.D.; Freund, R.; Schubert, C. | Konferenzbeitrag |
2010 | Terabit/s single-carrier transmission systems based on coherent time-division demultiplexing Schmidt-Langhorst, C.; Ludwig, R.; Molle, L.; Groß, D.-D.; Freund, R.; Schubert, C. | Konferenzbeitrag |
2009 | 1 Tb/s transmission on a single wavelength channel for future terabit ethernet Schmidt-Langhorst, C.; Ludwig, R.; Hu, H.; Schubert, C. | Konferenzbeitrag |
2009 | 1.28 Tb/s single wavelength star-16-QAM transmission over up to 800 m of graded-index multimode fibre Freund, R.-E.; Gross, D.-D.; Ludwig, R.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2009 | 107 Gb/s RZ-DQPSK signal transmission over 108 km SMF using optical phase conjugation in an SOA Hu, H.; Han, L.; Ludwig, R.; Schmidt-Langhorst, C.; Yu, J.; Schubert, C. | Konferenzbeitrag |
2009 | All-optical combination of DPSK and OOK to 320-Gb/s DQPSK signal using fiber-based signal processors Futami, F.; Okabe, R.; Kato, T.; Schmidt-Langhorst, C.; Schubert, C.; Ludwig, R.; Watanabe, S. | Konferenzbeitrag |
2009 | Characterization of an InP-based electrical 1:2 demultiplexer in a 107 Gb/s OOK system Schubert, C.; Makon, R.E.; Steffan, A.G.; Driad, R.; Ludwig, R.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2009 | Coherent detection of a 50 Gb/s QPSK signal using an InP 90 deg hybrid monolithically integrated with balanced photodetectors Ludwig, R.; Matiss, A; Bach, H.-G.; Molle, L.; Leonhardt, C.C.; Kunkel, R.; Schmidt, D. | Konferenzbeitrag |
2009 | Demonstration of an InP-based electrical 1:2 demultiplexer in a 107 Gb/s OOK system Schubert, C.; Makon, R.E.; Steffan, A.G.; Driad, R.; Ludwig, R.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2009 | Generation and coherent time-division demultiplexing of up to 5.1 Tb/s single-channel 8-PSK and 16-QAM signals Schmidt-Langhorst, C.; Ludwig, R.; Gross, D.-D.; Molle, L.; Seimetz, M.; Freund, R.; Schubert, C. | Konferenzbeitrag |
2009 | Hybrid integrated 40 Gb/s DPSK receiver on SOI Kroh, M.; Unterbörsch, G.; Tsianos, G.; Ziegler, R.; Steffan, A.G.; Bach, H.-G.; Kreissl, J.; Kunkel, R.; Mekonnen, G.G.; Rehbein, W.; Schmidt, D.; Ludwig, R.; Petermann, K.; Bruns, J.; Mitze, T.; Voigt, K.; Zimmermann, L. | Konferenzbeitrag |
2009 | Investigation of DGD and delay-line interferometer phase tolerance of integrated receiver module for 86 Gb/s NRZ-DQPSK modulation Nielsen, M.L.; Steffan, A.G.; Tsianos, G.; Unterborsch, G.; Umbach, A.; Ludwig, R.; Boutin, A.; Fulop, L.; Verluise, F. | Konferenzbeitrag |
2009 | Polarization insensitive all-optical wavelength conversion of 320 Gb/s RZ-DQPSK data signals Hu, H.; Suche, H.; Ludwig, R.; Hüttl, B.; Schmidt-Langhorst, C.; Nouroozi, R.; Sohler, W.; Schubert, C. | Konferenzbeitrag |
2009 | Polarization-independent all-optical amplitude limiter using two-stage gain-saturated fiber parametric amplifiers Watanabe, S.; Futami, F.; Okabe, R.; Kato, T.; Ludwig, R.; Schmidt-Langhorst, C.; Schubert, C. | Konferenzbeitrag |
2009 | Quantum-dot semiconductor optical booster amplifier with ultrafast gain recovery for pattern-effect free amplification of 80 Gb/s RZ-OOK data signals Schmidt-Langhorst, C.; Meuer, C.; Ludwig, R.; Puris, D.; Bonk, R.; Vallaitis, T.; Bimberg, D.; Petermann, K.; Leuthold, J.; Schubert, C. | Konferenzbeitrag |
2009 | Single-channel 1-Tb/s transmission over 480 km DMF for future terabit ethernet systems Schmidt-Langhorst, C.; Ludwig, R.; Hu, H.; Schubert, C. | Konferenzbeitrag |
2009 | Wavelength conversion and optical signal processing in PPLN waveguides Sohler, W.; Buchter, D.; Gui, L.; Herrmann, H.; Hu, H.; Ludwig, R.; Nouroozi, R.; Quiring, V.; Ricken, R.; Schubert, C.; Suche, H. | Konferenzbeitrag |
2009 | What far-infrared spectra can contribute to the development of force fields for ionic liquids used in molecular dynamics simulations Köddermann, T.; Fumino, K.; Ludwig, R.; Canongia Lopes, J.N.; Padua, A.A.H. | Zeitschriftenaufsatz |
2008 | 107 Gb/s RZ-DPSK transmission over 320 km dispersion-managed fiber with balanced detection ETDM integrated receiver Ludwig, R.; Hüttl, B.; Hu, H.; Schmidt-Langhorst, C.; Schubert, C. | Konferenzbeitrag |
2008 | 107 Gbit/s RZ-DPSK transmission using an EDTM integrated receiver Schubert, C.; Ludwig, R.; Hüttl, B.; Hu, H.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2008 | 53.5 GHz monolithically integrated pulse source for 107 Gb/s RZ-DQPSK transmission Schubert, C.; Ludwig, R.; Hüttl, B.; Kaiser, R.; Hu, H.; Steffan, A.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2008 | All-optical amplitude noise suppression of 107 Gb/s DPSK signals using a parametric fiber switch in a 320 km transmission experiment Ludwig, R.; Futami, F.; Hüttl, B.; Schmidt-Langhorst, C.; Okabe, R.; Watanabe, S.; Schubert, C. | Konferenzbeitrag |
2008 | All-optical wavelength conversion of 80 Gb/s RZ-DQPSK using four-wave mixing in a semiconductor optical amplifier Han, L.; Hu, H.; Ludwig, R.; Schubert, C.; Zhang, H. | Konferenzbeitrag |
2008 | Impact of pump-phase modulation on FWM-based wavelength conversion of D(Q)PSK signals Elschner, R.; Bunge, C.-A.; Hüttl, B.; Gual i Coca, A.; Schmidt-Langhorst, C.; Ludwig, R.; Schubert, C.; Petermann, K. | Zeitschriftenaufsatz |
2008 | Innovative clear barrier technology for the packaging industry Schiller, N.; Straach, S.; Günther, S.; Alexandra, L.; Quiceno, G.; Contreras, A.G.; Ludwig, R.; Hoffmann, G. | Konferenzbeitrag |
2008 | Eine innovative Technologie zur Herstellung von transparenten Barriereschichten für die Verpackungsindustrie Schiller, N.; Straach, S.; Günther, S.; Ludwig, R.; Hoffmann, G. | Konferenzbeitrag |
2008 | Linewidth investigation of monolithically integrated 40 GHz mode-locked laser diodes for high-speed RZ-DQPSK transmission Hüttl, B.; Hu, H.; Ludwig, R.; Kaiser, R.; Schmidt-Langhorst, C.; Steffan, A.G.; Schubert, C. | Konferenzbeitrag |
2008 | An optical parametric amplified fiber switch for optical signal processing and regeneration Watanabe, S.; Futami, F.; Okabe, R.; Ludwig, R.; Schmidt-Langhorst, C.; Huettl, B.; Schubert, C.; Weber, H.G. | Zeitschriftenaufsatz |
2008 | Phase-preserving 2R regeneration of a WDM RZ-DPSK signal using a nonlinear amplifying loop mirror Cvecek, K.; Sponsel, K.; Stephan, C.; Onishchukov, G.; Ludwig, R.; Schubert, C.; Schmauss, B.; Leuchs, G. | Konferenzbeitrag |
2008 | Phase-preserving amplitude regeneration for a WDM RZ-DPSK signal using a nonlinear amplifying loop mirror Cvecek, K.; Sponsel, K.; Stephan, C.; Onishchukov, G.; Ludwig, R.; Schubert, C.; Schmauss, B.; Leuchs, G. | Zeitschriftenaufsatz |
2008 | Ultra-high-speed OTDM transmission technology Weber, H.-G.; Ludwig, R. | Aufsatz in Buch |
2007 | 100 Gb/s ETDM receivers Ludwig, R.; Schubert, C.; Huettl, B.; Schmidt-Langhorst, C.; Derksen, R.H.; Moller, M. | Konferenzbeitrag |
2007 | 160 Gb/s RZ-DPSK OTDM-transmission over 480 km using 160 km repeater spans and advanced forward-error-correction Ludwig, R.; Weisser, S.; Schmidt-Langhorst, C.; Raddatz, L.; Schubert, C. | Konferenzbeitrag |
2007 | 160 Gbit/s RZ-DPSK OTDM-transmission over 480 km using 160 km repeater spans Schubert, C.; Ludwig, R.; Weisser, S.; Schmidt-Langhorst, C.; Raddatz, L. | Konferenzbeitrag |
2007 | 2R-Regeneration of an 80-Gb/s RZ-DQPSK signal by a nonlinear amplifying loop mirror Cvecek, K.; Sponsel, K.; Ludwig, R.; Schubert, C.; Stephan, C.; Onishchukov, G.; Schmauss, B.; Leuchs, G. | Zeitschriftenaufsatz |
2007 | 320 Gbit/s DQPSK all-optical wavelength conversion using four wave mixing Galili, M.; Hüttl, B.; Schmidt-Langhorst, C.; Gual i Coca, A.; Ludwig, R.; Schubert, C. | Konferenzbeitrag |
2007 | 320 Gbit/s DQPSK all-optical wavelength conversion using periodically poled LiNbO3 Hüttl, B.; Gual i Coca, A.; Suche, H.; Ludwig, R.; Schmidt-Langhorst, C.; Weber, H.; Sohler, W.; Schubert, C. | Konferenzbeitrag |
2007 | All-optical amplitude noise suppression of 160-Gb/s OOK and DPSK data signals using a parametric fiber switch Futami, F.; Okabe, R.; Ono, S.; Watanabe, S.; Ludwig, R.; Schmidt-Langhorst, C.; Schubert, C. | Konferenzbeitrag |
2007 | All-optical combination of DPSK and OOK to 160 Gbit/s DQPSK data signals Galili, M.; Schmidt-Langhorst, C.; Ludwig, R.; Futami, F.; Watanabe, S.; Schubert, C. | Konferenzbeitrag |
2007 | All-optical wavelength converter concepts for high data rate D(Q)PSK transmission Hüttl, B.; Elschner, R.; Suche, H.; Gual i Coca, A.; Bunge, C.-A.; Schmidt-Langhorst, C.; Ludwig, R.; Nouroozi, R.; Weber, H.G.; Petermann, K.; Sohler, W.; Schubert, C. | Konferenzbeitrag |
2007 | Geschwindigkeitsrekord auf der Datenautobahn Schmidt-Langhorst, C.; Schubert, C.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
2007 | Integrated 100-Gb/s ETDM receiver Schubert, C.; Derksen, R.H.; Moller, M.; Ludwig, R.; Weiske, C.-J.; Lutz, J.; Ferber, S.; Kirstadter, A.; Lehmann, G.; Schmidt-Langhorst, C. | Zeitschriftenaufsatz |
2007 | Optimization of SBS-suppression for 320 Gbit/s DQPSK all-optical wavelength conversion Hüttl, B.; Gual i Coca, A.; Elschner, R.; Bunge, C.-A.; Petermann, K.; Schmidt-Langhorst, C.; Ludwig, R.; Schubert, C. | Konferenzbeitrag |
2007 | Optische Zeitmultiplex-Technik für 160 Gbit/s und 640 Gbit/s (OPTIK) Weber, H.-G.; Berger, J.; Börner, C.; Dietrich, E.; Ehrke, H.-J.; Ferber, S.; Hilliger, E.; Knupke, H.; Küller, L.; Kroh, M.; Ludwig, R.; Marembert, V.; Schmidt-Langhorst, C.; Schubert, C. | Bericht |
2007 | Phase-preserving 2R-regeneration of an 80-GB/s RZ-DQPSK signal by using a nonlinear amplifying loop mirror Cvecek, K.; Sponsel, K.; Stephan, C.; Ludwig, R.; Schubert, C.; Onishchukov, G.; Schmauss, B.; Leuchs, G. | Konferenzbeitrag |
2007 | Transmission Systems beyond 100 Gbit/s Ludwig, R.; Schmidt-Langhorst, C.; Hüttl, B.; Schubert, C.; Weisser, S.; Raddatz, L. | Konferenzbeitrag |
2007 | Ultrafast optical transmission technologies Ludwig, R.; Schmidt-Langhorst, C.; Schubert, C.; Hüttl, B.; Weber, H.-G. | Konferenzbeitrag |
2007 | Ultrafast Transmission Technology Ludwig, R. | Konferenzbeitrag |
2007 | Unrepeated Transmission of 160 Gb/s RZ-DPSK over 293 km Dispersion Managed Fiber using Optimized Raman Amplification and Advanced Forward-Error-Correction Ludwig, R.; Weisser, S.; Schmidt-Langhorst, C.; Raddatz, L.; Schubert, C. | Konferenzbeitrag |
2007 | Unrepeatered transmission of 160 Gb/s RZ-DPSK over 240 km dispersion managed fiber Ludwig, R.; Weisser, S.; Schmidt-Langhorst, C.; Raddatz, L.; Schubert, C. | Konferenzbeitrag |
2006 | 107 Gbit/s transmission using an integrated ETDM receiver Schubert, C.; Derksen, R.H.; Möller, M.; Ludwig, R.; Weiske, C.-J.; Lutz, J.; Ferber, S.; Schmidt-Langhorst, C. | Konferenzbeitrag |
2006 | 160 Gbit/s all-optical OOK to DPSK in-line format conversion Schmidt-Langhorst, C.; Ludwig, R.; Galili, M.; Hüttl, B.; Futami, F.; Watanabe, S.; Schubert, C. | Konferenzbeitrag |
2006 | 2000 km DWDM transmission of 85.2 Gbit/s DQPSK data with 100 GHz channel spacing over non-zero dispersion shifted fiber Weisser, S.; Raddatz, L.; Ludwig, R.; Schubert, C. | Konferenzbeitrag |
2006 | 5.4 bit/s (64*85.2) Gbit/s DQPSK transmission with 100 Ghz channel spacing over 2000 km non-zero dispersion shifted fiber Ludwig, R.; Schubert, C.; Weisser, S.; Raddatz, L. | Konferenzbeitrag |
2006 | High-speed transmission based on a 40 Gbaud DQPSK system Schubert, C.; Ferber, S.; Ludwig, R.; Schmidt-Langhorst, C.; Weber, H.G. | Konferenzbeitrag |
2006 | Integrated 100 Gbit/s ETDM receiver in a transmission experiment over 480 km DMF Derksen, R.H.; Lehmann, G.; Weiske, C.-J.; Schubert, C.; Ludwig, R.; Ferber, S.; Schmidt-Langhorst, C.; Lutz, J.; Möller, M. | Konferenzbeitrag |
2006 | Single channel 1.28 Tbit/s and 2.56 Tbit/s DQPSK transmission Weber, H.G.; Ferber, S.; Kroh, M.; Schmidt-Langhorst, C.; Ludwig, R.; Marembert, V.; Boerner, C.; Futami, F.; Watanabe, S.; Schubert, C. | Zeitschriftenaufsatz |
2006 | Single channel transmission beyond 1 Tbit/s Schubert, C.; Ludwig, R.; Ferber, S.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G. | Konferenzbeitrag |
2006 | Single channel transmission beyond 1 Tbit/s Ludwig, R.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G. | Konferenzbeitrag |
2006 | Single channel transmission beyond 1 Tbit/s Ludwig, R.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G. | Konferenzbeitrag |
2006 | Single- and alternating-polarization 170-Gb/s transmission up to 4000 km using dispersion-managed fiber and all-Raman amplification Weisser, S.; Ferber, S.; Raddatz, L.; Ludwig, R.; Benz, A.; Boerner, C.; Weber, H.-G. | Zeitschriftenaufsatz |
2006 | Terabit transmission on a single wavelength channel Schubert, C.; Schmidt-Langhorst, C.; Ludwig, R.; Ferber, S.; Hüttl, B.; Weber, H.G. | Konferenzbeitrag |
2006 | Transmitter enabling ultra-high speed transmission of phase modulated data signals up to 640 Gbit/s Kroh, M.; Ferber, S.; Schmidt-Langhorst, C.; Marembert, V.; Schubert, C.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
2006 | Ultrafast transmission technology Ludwig, R.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G. | Konferenzbeitrag |
2006 | Ultrahigh-speed OTDM-transmission technology Weber, H.G.; Ludwig, R.; Ferber, S.; Schmidt-Langhorst, C.; Kroh, M.; Marembert, V.; Boerner, C.; Schubert, C. | Zeitschriftenaufsatz |
2005 | 160 Gbit/s DPSK transmission over 320 km fibre link with high long-term stability Ferber, S.; Ludwig, R.; Boerner, C.; Schubert, C.; Schmidt-Langhorst, C.; Kroh, M.; Marembert, V.; Weber, H.G. | Zeitschriftenaufsatz |
2005 | 160 Gbit/s OTDM long-haul transmission with long-term stability using RZ-DPSK modulation format Ferber, S.; Schmidt-Langhorst, C.; Ludwig, R.; Boerner, C.; Schubert, C.; Marembert, V.; Kroh, M.; Weber, H.-G. | Zeitschriftenaufsatz |
2005 | 160 Gbit/s transmission systems, ready for operation? Ludwig, R.; Ferber, S.; Boerner, C.; Schubert, C.; Schmidt-Langhorst, C.; Kroh, M.; Marembert, V.; Weber, H.G. | Konferenzbeitrag |
2005 | 160 Gbit/s transmission with long-term stability Ferber, S.; Schmidt-Langhorst, C.; Ludwig, R.; Boerner, C.; Schubert, C.; Marembert, V.; Kroh, M.; Weber, H.-G. | Konferenzbeitrag |
2005 | 320 Gbit/s clock recovery with electro-optical PLL using a bidirectionally operated electroabsorption modulator as phase comparator Boerner, C.; Marembert, V.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
2005 | 40 GHz semiconductor mode-locked laser pulse source for 160 Gbit/s RZ-DPSK data transmission Schubert, C.; Ferber, S.; Kroh, M.; Schmidt-Langhorst, C.; Ludwig, R.; Hüttl, B.; Kaiser, R.; Weber, H.G. | Konferenzbeitrag |
2005 | 640 Gbit/s DQPSK single-channel transmission over 480 km fibre link Ferber, S.; Schubert, C.; Ludwig, R.; Boerner, C.; Schmidt-Langhorst, C.; Weber, H.G. | Konferenzbeitrag |
2005 | 640 Gbit/s DQPSK, single wavelength-channel transmission over 480 km fibre link Ferber, S.; Schubert, C.; Ludwig, R.; Boerner, C.; Schmidt-Langhorst, C.; Weber, H.G. | Zeitschriftenaufsatz |
2005 | 80 Gbit/s DPSK transmission over 480 km dispersion-managed fibre with balanced detection ETDM receiver Ludwig, R.; Lee, W.S.; Schubert, C.; Ferber, S.; Börner, C.; Schmidt-Langhorst, C.; Weber, H.G. | Konferenzbeitrag |
2005 | Automatic PMD compensator in a 160-Gb/s OTDM transmission over deployed fiber using RZ-DPSK modulation format Kieckbusch, S.; Ferber, S.; Rosenfeldt, H.; Ludwig, R.; Boerner, C.; Ehrhardt, A.; Brinkmeyer, E.; Weber, H.-G. | Zeitschriftenaufsatz |
2005 | Burst switching capability of electro-optical PLL-based clock recovery for 170 Gbit/s Boerner, C.; Ludwig, R.; Ferber, S.; Weber, H.G.; Weisser, S.; Benz, A.; Raddatz, L. | Konferenzbeitrag |
2005 | High-bandwidth balanced photoreceiver suitable for 40 Gb/s RZ-DPSK modulation formats Schramm, C.; Bach, H.-G.; Beling, A.; Jacumeit, G.; Ferber, S.; Ludwig, R.; Ziegler, R.; Mekonnen, G.G.; Kunkel, R.; Schmidt, D.; Schlaak, W.; Unterbörsch, G. | Zeitschriftenaufsatz |
2005 | High-speed optical signal processing using semiconductor optical amplifiers Schubert, C.; Ludwig, R.; Weber, H.-G. | Zeitschriftenaufsatz |
2005 | Optical sampling system including clock recovery for 320 Gbit/s DPSK and OOK data signals Schmidt-Langhorst, C.; Schubert, C.; Boerner, C.; Marembert, V.; Ferber, S.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
2005 | Optical sampling technologies and applications Schmidt-Langhorst, C.; Schubert, C.; Boerner, C.; Ludwig, R. | Konferenzbeitrag |
2005 | Pushing the speed limit Ludwig, R. | Zeitschriftenaufsatz |
2005 | Single channel 1.28 Tbit/s and 2.56 Tbit/s DQPSK transmission Weber, H.G.; Ferber, S.; Kroh, M.; Schmidt-Langhorst, C.; Ludwig, R.; Marembert, V.; Boerner, C.; Futami, F.; Watanabe, S.; Schubert, C. | Konferenzbeitrag |
2005 | Single-channel 170 Gbit/s transmission up to 4000 km using dispersion-managed fiber spans and all-Raman amplification Ludwig, R.; Weisser, S.; Raddatz, L.; Benz, A.; Ferber, S.; Boerner, C.; Weber, H.G. | Konferenzbeitrag |
2005 | Technologies enabling ultrahigh speed transmission Ludwig, R.; Ferber, S.; Boerner, C.; Schubert, C.; Schmidt-Langhorst, C.; Kroh, M.; Marembert, V.; Weber, H.G. | Konferenzbeitrag |
2005 | Ultrafast transmission technology Ludwig, R. | Konferenzbeitrag |
2004 | 160 Gb/s regenerating conversion node Ferber, S.; Ludwig, R.; Boerner, C.; Schmidt-Langhorst, C.; Molle, L.; Habel, K.; Rohde, M.; Weber, H.G.; Futami, F.; Watanabe, S. | Konferenzbeitrag |
2004 | Adaptive PMD compensator in 160Gb/s DPSK transmission over installed fiber Kieckbusch, S.; Ferber, S.; Rosenfeldt, H.; Ludwig, R.; Boerner, C.; Ehrhardt, A.; Brinkmeyer, E.; Weber, H.G. | Konferenzbeitrag |
2004 | High-speed optical signal processing and data transmission Weber, H.G.; Ludwig, R.; Ferber, S.; Boerner, C.; Schubert, C.; Schmidt-Langhorst, C.; Hilliger, E.; Kroh, M.; Marembert, V. | Konferenzbeitrag |
2004 | Ultrafast all-optical 3R-regeneration Watanabe, S.; Ludwig, R.; Futami, F.; Schubert, C.; Ferber, S.; Boerner, C.; Schmidt-Langhorst, C.; Berger, J.; Weber, H.-G. | Zeitschriftenaufsatz |
2004 | Ultrafast technologies in 160 Gbit/s transmission systems Schmidt-Langhorst, C.; Schubert, C.; Boerner, C.; Ferber, S.; Ludwig, R.; Berger, J.; Hilliger, E.; Marembert, V.; Kroh, M.; Ehrke, H.-J.; Weber, H.-G. | Konferenzbeitrag |
2003 | 160 Gbit/s clock recovery with electro-optical PLL using a bidirectionally operated electroabsorption modulator as phase comparator Börner, C.; Schubert, C.; Schmidt, C.; Hilliger, E.; Marembert, V.; Berger, J.; Ferber, S.; Dietrich, E.; Ludwig, R.; Schmauss, B.; Weber, H.G. | Konferenzbeitrag |
2003 | 160 Gbit/s clock recovery with electro-optical PLL using bidirectionally operated electroabsorption modulator as phase comparator Boerner, C.; Schubert, C.; Schmidt, C.; Hilliger, E.; Marembert, V.; Berger, J.; Ferber, S.; Dietrich, E.; Ludwig, R.; Schmauss, B.; Weber, H.G. | Zeitschriftenaufsatz |
2003 | 160 Gbit/s optical 3R-regenerator in a fiber transmission experiment Watanabe, S.; Futami, F.; Okabe, R.; Takita, Y.; Ferber, S.; Ludwig, R.; Schubert, C.; Schmidt, C.; Weber, H.G. | Konferenzbeitrag |
2003 | Comparison of DPSK and OOK modulation format in 160 Gbit/s transmission system Ferber, S.; Ludwig, R.; Boerner, C.; Wietfeld, A.; Schmauss, B.; Berger, J.; Schubert, C.; Unterbörsch, G.; Weber, H.G. | Zeitschriftenaufsatz |
2003 | Error-free all-optical add-drop multiplexing at 160 Gbit/s Schubert, C.; Schmidt, C.; Ferber, S.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
2003 | Monolithically integrated balanced photodetector and its application in OTDM 160 Gbit/s DPSK transmission Beling, A.; Bach, H.G.; Schmidt, D.; Mekonnen, G.G.; Ludwig, R.; Ferber, S.; Schubert, C.; Börner, C.; Schmauss, B.; Berger, J.; Schmidt, C.; Troppenz, U.; Weber, H.G. | Zeitschriftenaufsatz |
2002 | 160 Gbit/s wavelength converter with 3R-regenerating capability Schubert, C.; Ludwig, R.; Watanabe, S.; Futami, E.; Schmidt, C.; Berger, J.; Boerner, C.; Ferber, S.; Weber, H.G. | Zeitschriftenaufsatz |
2002 | 40 GHz optical clock extraction from 160 Gbit/s data signals using PLL-based clock recovery Yamamoto, T.; Schmidt, C.; Dietrich, E.; Schubert, C.; Berger, J.; Ludwig, R.; Weben, H.G. | Konferenzbeitrag |
2002 | Comparison of interferometric all-optical switches for demultiplexing applications in high-speed OTDM systems Schubert, C.; Berger, J.; Diez, S.; Ehrke, H.J.; Ludwig, R.; Feiste, U.; Schmidt, C.; Weber, H.G.; Toptchiyski, G.; Randel, S.; Petermann, K. | Zeitschriftenaufsatz |
2002 | Complete optical sampling system with broad gap-free spectral range for 160 Gbit/s and 320 Gbit/s and its application in a transmission system Schmidt, C.; Futami, F.; Watanabe, S.; Yamamoto, T.; Schubert, C.; Berger, J.; Kroh, M.; Ehrke, H.-J.; Dietrich, E.; Börner, C.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
2002 | Enabling transmission at 160 Gbit/s Ludwig, R.; Feiste, U.; Schmidt, C.; Schubert, C.; Berger, J.; Hilliger, E.; Kroh, M.; Yamamoto, T.; Weinert, C.M.; Weber, H.G. | Konferenzbeitrag |
2002 | Impact of fiber chromatic dispersion in high-speed TDM transmission-systems Konrad, B.; Petermann, K.; Berger, J.; Ludwig, R.; Weinert, C.M.; Weber, H.G.; Schmauss, B. | Zeitschriftenaufsatz |
2002 | Optical Q-factor monitoring at 160 Gb/s using an optical sampling system in an 80 km transmission experiment Schmidt, C.; Schubert, C.; Berger, J.; Kroh, M.; Ehrke, H.-J.; Dietrich, E.; Börner, C.; Ludwig, R.; Weber, H.G.; Futami, F.; Watanabe, S.; Yamamoto, T. | Konferenzbeitrag |
2001 | 160 Gb/s all-optical demultiplexer using a hybrid gain-transparent SOA Mach-Zehnder-interferometer Diez, S.; Schubert, C.; Ludwig, R.; Ehrke, H.-J.; Feiste, U.; Schmidt, C.; Weber, H.G. | Konferenzbeitrag |
2001 | 160 Gb/s all-optical demultiplexing using a gain-transparent ultrafast-nonlinear interferometer Diez, S.; Schubert, C.; Feiste, U.; Ludwig, R.; Berger, J.; Weber, H.G. | Konferenzbeitrag |
2001 | 160 Gbit/s demultiplexer with clock recovery using SOA-based interferometric switches and its application to 120 km fiber transmission Yamamoto, T.; Feiste, U.; Berger, J.; Schubert, C.; Schmidt, C.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
2001 | 160 Gbit/s field transmission over 116 km standard single mode fibre using 160 Gbit/s OTDM and 40 Gbit/s ETDM demultiplexer Feiste, U.; Ludwig, R.; Schubert, C.; Berger, J.; Schmidt, C.; Weber, H.G.; Schmauss, B.; Munk, A.; Buchold, B.; Briggmann, D.; Kueppers, F.; Rumpf, F. | Zeitschriftenaufsatz |
2001 | 160 Gbit/s transmission over 116 km field-installed fiber using 160 Gbit/s OTDM and 40 Gbit/s ETDM Feiste, U.; Ludwig, R.; Schubert, C.; Berger, J.; Schmidt, C.; Weber, H.G. | Konferenzbeitrag |
2001 | 160 Gbit/s transmission over 116 km field-installed fibre using 160 Gbit/s OTDM and 40 Gbit/s ETDM Feiste, U.; Ludwig, R.; Schubert, C.; Berger, J.; Schmidt, C.; Weber, H.G.; Schmauss, B.; Munk, A.; Buchold, B.; Briggmann, D.; Kueppers, F.; Rumpf, F. | Zeitschriftenaufsatz |
2001 | 160-Gb/s all-optical demultiplexing using a gain-transparent ultrafast-nonlinear interferometer (GT-UNI) Schubert, C.; Diez, S.; Berger, J.; Ludwig, R.; Feiste, U.; Weber, H.G.; Toptchiyski, G.; Petermann, K.; Krajinovic, V. | Zeitschriftenaufsatz |
2001 | 160-Gb/s polarization insensitive all-optical demultiplexing using a gain-transparent ultrafast nonlinear interferometer (GT-UNI) Schubert, C.; Berger, J.; Feiste, U.; Ludwig, R.; Schmidt, C.; Weber, H.G. | Zeitschriftenaufsatz |
2001 | Clock recovery from 160 Gbit/s data signals using phase-locked loop with interferometric optical switch based on semiconductor optical amplifier Yamamoto, T.; Oxenlowe, L.K.; Schmidt, C.; Schubert, C.; Hilliger, E.; Feiste, U.; Berger, J.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
2001 | Experimental verification of noise squeezing by an optical intensity filter in high-speed transmission Ludwig, R.; Sizmann, A.; Feiste, U.; Schubert, C.; Kroh, M.; Weinert, C.M.; Weber, H.G. | Konferenzbeitrag |
2001 | High bit rate OTDM-transmission on standard fibre Weinert, C.M.; Berger, J.; Feiste, U.; Hilliger, E.; Konrad, B.; Kroh, M.; Ludwig, R.; Petermann, K.; Schmidt, C.; Schubert, C.; Weber, H.G.; Yamamoto, T. | Zeitschriftenaufsatz |
2001 | Hybrid semiconductor polymer resonant grating waveguide structures Levy-Yurista, G.; Friesem, A.A.; Pawlowski, E.; Küller, L.; Ludwig, R.; Weber, H.G.; Donval, A.; Toussaere, E.; Zyss, J. | Zeitschriftenaufsatz |
2001 | Nonlinear optical intensity filters: Experiment and design rules Weinert, C.M.; Sizmann, A.; Ludwig, R.; Schubert, C.; Feiste, U.; Weber, H.G. | Konferenzbeitrag |
2001 | Optical TDM-transmission systems for channel rates of 40 Gbit/s and above Berger, J.; Breuer, D.; Feiste, U.; Konrad, B.; Ludwig, R.; Petermann, K.; Weber, H.G.; Weinert, C.M. | Konferenzbeitrag |
2000 | 160 Gbit/s all-optical demultiplexing using hybrid gain-transparent SOA Mach-Zehnder interferometer Diez, S.; Schubert, C.; Ludwig, R.; Ehrke, H.-J.; Feiste, U.; Schmidt, C.; Weber, H.G. | Zeitschriftenaufsatz |
2000 | 80 Gbit/s all-optical demultiplexing using a hybrid Mach-Zehnder- interferometer switch with gain-clamped semiconductor optical amplifiers Hilliger, E.; Diez, S.; Ehrke, H.-J.; Ludwig, R.; Schmidt, C.; Weber, H.G.; Emery, J.Y. | Konferenzbeitrag |
2000 | Analysis of switching windows in a gain-transparent SLALOM configuration Toptchiyski, G.; Randel, S.; Petermann, K.; Diez, S.; Hilliger, E.; Schmidt, C.; Schubert, C.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
2000 | Femtosecond pulse source with grating-waveguide structure Pawlowski, E.; Friesem, A.A.; Kuller, L.; Levy-Yurista, G.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
2000 | In-line saturable absorber in transmission-systems with cascaded semiconductor optical amplifiers Bakonyi, Z.; Onishchukov, G.; Knöll, C.; Gölles, M.; Lederer, F.; Ludwig, R. | Zeitschriftenaufsatz |
2000 | PMD compensation in 10Gbit-s NRZ field experiment using polarimetric error signal Rosenfeldt, H.; Ulrich, R.; Feiste, U.; Ludwig, R.; Weber, H.G.; Ehrhardt, A. | Zeitschriftenaufsatz |
2000 | Unrepeatered 160 Gbit/s RZ single channel transmission over 160 km of standard fiber at 1.55 mu m with hybrid MZI optical DEMUX Ludwig, R.; Feiste, U.; Diez, S.; Schubert, C.; Schmidt, C.; Ehrke, H.J.; Weber, H.G. | Konferenzbeitrag |
2000 | Unrepeatered 160 Gbit/s RZ single-channel transmission over 160 km of standard fibre at 1.55 mu m with hybrid MZI optical demultiplexer Ludwig, R.; Feiste, U.; Diet, S.; Schubert, C.; Schmidt, C.; Ehrke, H.J.; Weber, H.G. | Zeitschriftenaufsatz |
2000 | Unrepeatered 80 Gbit/s RZ single channel transmission over 160 km of standard fiber at 1.55 mu m with a large wavelength tolerance Feiste, U.; Ludwig, R.; Diez, S.; Schmidt, C.; Ehrke, H.J.; Weber, H.G. | Konferenzbeitrag |
2000 | Unrepeatered 80 Gbit/s RZ single channel transmission over 160 km of standard fibre at 1.55 mu m with large wavelength tolerance Feiste, U.; Ludwig, R.; Diez, S.; Schmidt, C.; Ehrke, H.J.; Weber, H.G.; Kuppers, F. | Zeitschriftenaufsatz |
1999 | 160 Gbit/s optical sampling by a novel ultra-broadband switch based on four-wave mixing in a semiconductor optical amplifier Diez, S.; Ludwig, R.; Schmidt, C.; Feiste, U.; Weber, H.G. | Konferenzbeitrag |
1999 | 160-Gb/s optical sampling by gain-transparent four-wave mixing in a semiconductor optical amplifier Diez, S.; Ludwig, R.; Schmidt, C.; Feiste, U.; Weber, H.G. | Zeitschriftenaufsatz |
1999 | 40 Gb/s and 4*40 Gb/s TDM/WDM standard fiber transmission Weinert, C.M.; Ludwig, R.; Pieper, W.; Weber, H.G.; Breuer, D.; Petermann, K.; Kuppers, F. | Zeitschriftenaufsatz |
1999 | 80 Gbit/s transmission over 106 km standard-fiber using optical phase conjugation in a Sagnac-interferometer Feiste, U.; Ludwig, R.; Schmidt, C.; Dietrich, E.; Diez, S.; Ehrke, H.J.; Patzak, E.; Weber, H.G. | Konferenzbeitrag |
1999 | 80-Gb/s transmission over 106-km standard-fiber using optical phase conjugation in a Sagnac-interferometer Feiste, U.; Ludwig, R.; Schmidt, C.; Dietrich, E.; Diez, S.; Ehrke, H.J.; Patzak, E.; Weber, H.G.; Merker, T. | Zeitschriftenaufsatz |
1999 | Applications of SOA's for optical signal processing and OTDM Ludwig, R.; Diez, S.; Hilliger, E.; Schmidt, C.; Weber, H.G. | Konferenzbeitrag |
1999 | Bit-rate flexible all-optical clock recovery Sartorius, B.; Bornholdt, C.; Brox, O.; Ehrke, H.J.; Hoffmann, D.; Ludwig, R.; Mohrle, M. | Konferenzbeitrag |
1999 | Experimental comparison of 40 Gbit/s RZ and NRZ transmission over standard singlemode fibre Ludwig, R.; Feiste, U.; Dietrich, E.; Weber, H.G.; Breuer, D.; Martin, M.; Kuppers, F. | Zeitschriftenaufsatz |
1999 | Gain-transparent SOA-switch for high-bitrate OTDM add/drop multiplexing Diez, S.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1999 | High-speed transmission over standard fiber Weber, H.G.; Breuer, D.; Feiste, U.; Koltchanov, I.; Ludwig, R.; Weinert, C.M. | Konferenzbeitrag |
1999 | Mode-locked semiconductor lasers and their applications for optical signal processing Schmidt, C.; Dietrich, E.; Diez, S.; Ehrke, H.J.; Feiste, U.; Kuller, L.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1999 | RZ versus NRZ modulation format for dispersion compensated SMF-based 10-Gb/s transmission with more than 100-km amplifier spacing Caspar, C.; Foisel, H.-M.; Gladisch, A.; Hanik, N.; Kuppers, F.; Ludwig, R.; Mattheus, A.; Pieper, W.; Strebel, B.; Weber, H.G. | Zeitschriftenaufsatz |
1998 | 4-channel*40-Gb/s unrepeatered OTDM transmission over 100-km standard fiber Pieper, W.; Ludwig, R.; Weinert, C.M.; Kuhlow, B.; Przyrembel, G.; Ferstl, M.; Pawlowski, E.; Weber, H.G. | Zeitschriftenaufsatz |
1998 | 40 Gbit/s transmission over 200 km of standard-fiber using polarisation independent mid-span spectral inversion Feiste, U.; Ludwig, R.; Dietrich, E.; Diez, S.; Ehrke, H.J.; Razic, D.; Weber, H.G. | Konferenzbeitrag |
1998 | 40 Gbit/s transmission over 434 km standard fibre using polarisation independent mid-span spectral inversion Feiste, U.; Ludwig, R.; Dietrich, E.; Diez, S.; Ehrke, H.J.; Razic, D.; Weber, H.G. | Zeitschriftenaufsatz |
1998 | 40 Gbit/s transmission over 434 km standard-fiber using polarisation independent mid-span spectral inversion Feiste, U.; Ludwig, R.; Dietrich, E.; Diez, S.; Ehrke, H.J.; Razic, D.; Weber, H.G. | Konferenzbeitrag |
1998 | All-optical clock recovery module based on self-pulsating DFB laser Sartorius, B.; Bornholdt, C.; Brox, O.; Ehrke, H.J.; Hoffmann, D.; Ludwig, R.; Mohrle, M. | Zeitschriftenaufsatz |
1998 | All-optical switch for TDM and WDM/TDM systems demonstrated in a 640 Gbit/s demultiplexing experiment Diez, S.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1998 | Effect of birefringence in a bulk semiconductor optical amplifier on four-wave mixing Diez, S.; Schmidt, C.; Ludwig, R.; Weber, H.G.; Doussiere, P.; Ducellier, T. | Zeitschriftenaufsatz |
1998 | Effect of the particle size on the burning behavior of B/KNO3 ignitor mixtures Weiser, V.; Kuhn, D.; Ludwig, R.; Poth, H. | Konferenzbeitrag |
1998 | High-power performance of a high-speed photodetector Unterborsch, G.; Trommer, D.; Umbach, A.; Ludwig, R.; Bach, H.G. | Konferenzbeitrag |
1998 | High-speed all-optical signal processing by switching devices based on semiconductor optical amplifiers Diez, S.; Ludwig, R.; Weber, H.-G. | Konferenzbeitrag |
1998 | Novel gain-transparent SOA-switch for high bitrate OTDM add/drop multiplexing Diez, S.; Ludwig, R.; Patzak, E.; Weber, H.G. | Konferenzbeitrag |
1998 | System performance of an all-optical clock recovery module Sartorius, B.; Bornholdt, C.; Brox, O.; Ehrke, H.J.; Hoffmann, D.; Ludwig, R.; Möhrle, M. | Konferenzbeitrag |
1998 | A tunable femtosecond modelocked semiconductor laser for applications in OTDM-systems Ludwig, R.; Diez, S.; Ehrhardt, A.; Kuller, L.; Pieper, W.; Weber, H.G. | Zeitschriftenaufsatz |
1997 | Birefringence in polarization insensitive semiconductor optical amplifiers: Influence on four-wave mixing Diez, S.; Schmidt, C.; Ludwig, R.; Weber, H.G.; Kindt, S.; Obermann, K.; Kolchanov, I.; Petermann, K.; Ducellier, T.; Doussiere, P. | Konferenzbeitrag |
1997 | Extinction ratio degradation in a 40 Gbit/s optical demultiplexer based on a monolithically integrated Michelson-interferometer Pieper, W.; Ludwig, R.; Weber, H.G.; Schilling, M.; Daub, K.; Lach, E.; Laube, G.; Idler, W.; Wunstel, K. | Konferenzbeitrag |
1997 | Four-wave mixing in semiconductor optical amplifiers for frequency conversion and fast optical switching Diez, S.; Schmidt, C.; Ludwig, R.; Weber, H.G.; Obermann, K.; Kindt, S.; Koltchanov, I.; Petermann, K. | Zeitschriftenaufsatz |
1997 | Gb/s NRZ/RZ transmission over 2000 km standard fibre with more than 100 km amplifier spacing Caspar, C.; Foisel, H.-M.; Gladisch, A.; Hanik, N.; Kuppers, F.; Ludwig, R.; Mattheus, A.; Pieper, W.; Strebel, B.; Weber, H.G. | Konferenzbeitrag |
1997 | Switching window of picosecond pulse switching using four-wave mixing in semiconductor-optical amplifiers Schmidt, C.; Diez, S.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1997 | Techniques for 40 Gbit/s OTDM-systems Pieper, W.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1997 | Unrepeated 40-Gbit/s RZ single-channel transmission over 150 km of standard fiber at 1.55 mu m Ludwig, R.; Pieper, W.; Weber, H.G.; Breuer, D.; Petermann, K.; Kuppers, F.; Mattheus, A. | Konferenzbeitrag |
1997 | Unrepeatered 40 Gbit/s RZ single channel transmission over 150 km of standard singlemode fibre at 1.55 mu m Ludwig, R.; Pieper, W.; Weber, H.G.; Breuer, D.; Petermann, K.; Kuppers, F.; Mattheus, A. | Zeitschriftenaufsatz |
1996 | 10 GHz all-optical clock recovery using a mode-locked semiconductor laser in a 40 Gbit/s, 100-km transmission experiment Ludwig, R.; Pieper, W.; Jahn, E.; Agrawal, N.; Ehrhardt, A.; Kuller, L.; Weber, H.G. | Konferenzbeitrag |
1996 | 40 Gbit/s demultiplexing experiment with 10 GHz all-optical clock recovery using a modelocked semiconductor laser Ludwig, R.; Ehrhardt, A.; Pieper, W.; Jahn, E.; Agrawal, N.; Ehrke, H.-J.; Kuller, L.; Weber, H.G. | Zeitschriftenaufsatz |
1996 | All-optical polarisation and wavelength independent 3R signal regenerator Pieper, W.; Weich, K.; Ludwig, R.; Patzak, E.; Weber, H.G. | Zeitschriftenaufsatz |
1996 | All-optical polarization and wavelength independent 3R signal regenerator Pieper, W.; Weich, K.; Ludwig, R.; Patzak, E.; Weber, H.G. | Konferenzbeitrag |
1996 | Characterization of an all-optical clock recovery operating in excess of 40 Gbit/s Ehrhardt, A.; Ludwig, R.; Pieper, W.; Jahn, E.; Weber, H.G. | Konferenzbeitrag |
1996 | Fiber loop optical buffer Langenhorst, R.; Eiselt, M.; Pieper, W.; Grosskopf, G.; Ludwig, R.; Kuller, L.; Dietrich, E.; Weber, H.G. | Zeitschriftenaufsatz |
1996 | Four-wave mixing in semiconductor laser amplifiers: Applications for optical communication systems Ludwig, R.; Pieper, W.; Schnabel, R.; Diez, S.; Weber, H.G. | Zeitschriftenaufsatz |
1996 | Four-wave mixing in semiconductor laser amplifiers: Phase matching in configurations with three input waves Diez, S.; Ludwig, R.; Patzak, E.; Weber, H.G.; Eisenstein, G.; Schimpe, R. | Konferenzbeitrag |
1996 | Monolithically integrated asymmetric Mach-Zehnder interferometer as a 20 Gbit/s all-optical add/drop multiplexer for OTDM systems Jahn, E.; Agrawal, N.; Ehrke, H.-J.; Ludwig, R.; Pieper, W.; Weber, H.G. | Zeitschriftenaufsatz |
1996 | Optical time-domain demultiplexing techniques using semiconductor laser amplifiers Weber, H.G.; Agrawal, N.; Ehrhardt, A.; Ehrke, H.J.; Eiselt, M.; Jahn, E.; Ludwig, R.; Pieper, W.; Schnabel, R. | Konferenzbeitrag |
1996 | Ultrafast optical signal processing using semiconductor laser amplifiers Schnabel, R.; Ludwig, R.; Pieper, W.; Diez, S.; Weber, H.G. | Zeitschriftenaufsatz |
1995 | 3*10 Gbit/s, 100 km data transmission based an sliced spectrum signal generation using a single tunable mode locked semiconductor laser pulse source Ludwig, R.; Pieper, W.; Langenhorst, R.; Weber, H.G. | Konferenzbeitrag |
1995 | 40 Gbit/s all-optical demultiplexing using a monolithically integrated Mach-Zehnder interferometer with semiconductor laser amplifiers Jahn, E.; Agrawal, N.; Arbert, M.; Ehrke, H.-J.; Franke, D.; Ludwig, R.; Pieper, W.; Weber, H.G.; Weinert, C.M. | Zeitschriftenaufsatz |
1995 | 40 Gbit/s all-optical demultiplexing using a monolithically integrated Mach-Zehnder interferometer with semiconductor laser amplifiers Jahn, E.; Agrawal, N.; Arbert, M.; Ehrke, H.-J.; Franke, D.; Ludwig, R.; Pieper, W.; Weber, H.G.; Weinert, C.M. | Konferenzbeitrag |
1995 | Datennetz mit Lichtwellenleitern. Kohn, U.; Ludwig, R. | Patent |
1995 | Four-wave mixing and asymmetric nonlinear gain in a semiconductor-laser amplifier Ludwig, R.; Schnabel, R.; Weber, H.G.; Wissenfeld, J. | Konferenzbeitrag |
1995 | Optical time-domain demultiplexing using semiconductor laser amplifiers Eiselt, M.; Pieper, W.; Schnabel, R.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1995 | Turn-key-ready wavelength-, repetition rate- and pulsewidth-tunable femtosecond hybrid modelocked semiconductor laser Ludwig, R.; Ehrhardt, A. | Zeitschriftenaufsatz |
1995 | Two stage polarization insensitive regenerative wavelength converter Weich, K.; Horer, J.; Eggemann, R.; Patzak, E.; Ludwig, R.; Mohrle, M.; Schimpe, R. | Konferenzbeitrag |
1994 | 200 fs optical pulses from a wavelength, repetition rate and pulse width tunable hybrid mode locked semiconductor laser Ehrhardt, A.; Ludwig, R. | Konferenzbeitrag |
1994 | BER measurements of frequency converted signals using four-wave mixing in a semiconductor laser amplifier at 1, 2.5, 5 and 10 Gbit/s Ludwig, R.; Raybon, G. | Zeitschriftenaufsatz |
1994 | Nonlinearity-insensitive standard-fiber transmission based on optical-phase conjugation in a semiconductor-laser amplifier Pieper, W.; Kurtzke, C.; Schnabel, R.; Breuer, D.; Ludwig, R.; Weber, H.G.; Petermam, K. | Konferenzbeitrag |
1994 | Nonlinearity-insensitive standard-fibre transmission based on optical-phase conjugation in a semiconductor-laser amplifier Pieper, W.; Kurtzke, C.; Schnabel, R.; Breuer, D.; Ludwig, R.; Petermann, K.; Weber, H.G. | Zeitschriftenaufsatz |
1994 | Polarization insensitive frequency conversion of a 10-channel OFDM signal using four-wave-mixing in a semiconductor laser amplifier Schnabel, R.; Hilbk, U.; Hermes, T.; Meissner, P.; Helmolt, C.; Magari, K.; Raub, F.; Pieper, W.; Westphal, F.J.; Ludwig, R.; Kuller, L.; Weber, H.G. | Zeitschriftenaufsatz |
1993 | All-optical and gate using femtosecond nonlinear gain dynamics in semiconductor laser amplifiers Schnabel, R.; Pieper, W.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1993 | All-optical demultiplexing using ultrafast four-wave-mixing in a semiconductor laser amplifier at 20 Gbit/s Ludwig, R.; Raybon, G. | Konferenzbeitrag |
1993 | Multiterahertz frequency conversion of a picosecond pulse train using nonlinear gain dynamics in a 1.5 mu m MQW semiconductor laser amplifier Schnabel, R.; Pieper, W.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1993 | One million pulse circulations in a fiber ring using a SLALOM for pulse shaping and noise reduction Eiselt, M.; Pieper, W.; Grosskopf, G.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1993 | Photonic packet switching experiments in a 2*2 switching node incorporating a fiber loop buffer Eiselt, M.; Ehrhardt, A.; Grosskopf, G.; Ludwig, R.; Pieper, W.; Schnabel, R.; Weber, H.G. | Konferenzbeitrag |
1993 | Polarisation insensitive frequency conversion of a 10-channel OFDM signal over 275 GHz in a semiconductor laser amplifier Schnabel, R.; Hilbk, U.; Hermes, T.; Meissner, P.; Helmolt, C. von; Magari, K.; Raub, F.; Pieper, W.; Westphal, F.J.; Ludwig, R.; Kuller, L.; Weber, H.G. | Konferenzbeitrag |
1993 | Semiconductor laser amplifier as optical switching gate Ehrhardt, A.; Eiselt, M.; Grossopf, G.; Kuller, L.; Ludwig, R.; Pieper, W.; Schnabel, R.; Weber, H.G. | Zeitschriftenaufsatz |
1992 | Photonic ATM switching with semiconductor laser amplifier gates Eiselt, M.; Grosskopf, G.; Ludwig, R.; Pieper, W.; Weber, H.G. | Zeitschriftenaufsatz |
1991 | BER measurements in random access fibre loop optical memory Dietrich, E.; Grosskopf, G.; Kuller, L.; Ludwig, R.; Pieper, W.; Weber, H.G. | Zeitschriftenaufsatz |
1991 | Optical signal processing using semiconductor laser amplifiers Weber, H.G.; Grosskopf, G.; Ludwig, R.; Patzak, E.; Schnabel, R. | Konferenzbeitrag |
1991 | Random access fiber loop optical memory with active switching and amplifying elements for optical ATM systems Ludwig, R.; Deitrich, E.; Grosskopf, G.; Kuller, L.; Pieper, W.; Weber, H.G. | Konferenzbeitrag |
1991 | Semiconductor laser amplifiers as all-optical frequency converters Schunk, N.; Grosskopf, G.; Ludwig, R.; Schnabel, R.; Weber, H.G. | Konferenzbeitrag |
1990 | Frequency conversion by four-wave-mixing in LD amplifiers Grosskopf, G.; Ludwig, R.; Schnabel, R.; Schunk, N.; Weber, H.G. | Konferenzbeitrag |
1990 | Frequency conversion by nearly-degenerate four-wave mixing in travelling-wave semiconductor laser amplifiers Schunk, N.; Grosskopf, G.; Ludwig, R.; Schnabel, R.; Weber, H.G. | Zeitschriftenaufsatz |
1990 | Optical amplifiers in fibre optic communication networks Grosskopf, G.; Ludwig, R.; Schnabel, R.; Schunk, N.; Weber, H.G. | Konferenzbeitrag |
1990 | Optical travelling wave amplifiers with multi-section semiconductor-laser structures Ludwig, R.; Moehrle, M.; Rosenzweig, M.; Schnabel, R.; Schunk, N.; Weber, H.G. | Zeitschriftenaufsatz |
1990 | Properties of two-section traveling wave amplifiers Ludwig, R.; Moerhrle, M.; Rosenzweig, M.; Schnabel, R.; Schunk, N.; Weber, H.G. | Konferenzbeitrag |
1989 | Characteristics of semiconductor laser optical amplifier as phase modulator Grosskopf, G.; Ludwig, R.; Schnabel, R.; Weber, H.G. | Zeitschriftenaufsatz |
1989 | Semiconductor laser optical amplifiers for multichannel coherent optical transmission Dietrich, E.; Enning, B.; Grosskopf, G.; Kuller, L.; Ludwig, R.; Molt, R.; Patzak, E.; Weber, H.G. | Zeitschriftenaufsatz |
1989 | Semiconductor laser optical amplifiers in switching and distribution networks Grosskopf, G.; Kuller, L.; Ludwig, R.; Schnabel, R.; Weber, H.G. | Zeitschriftenaufsatz |
1988 | 140 Mbit/s DPSK transmission using an all-optical frequency convertor with a 4000 GHz conversion range Grosskopf, G.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1988 | Application of nonlinear effects in semiconductor-laser optical amplifiers Grosskopf, G.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1988 | Cascaded in-line optical amplifiers in multichannel coherent optical transmission Grosskopf, G.; Ludwig, R.; Weber, H.G. | Konferenzbeitrag |
1988 | Cascaded inline semiconductor laser amplifiers in a coherent optical fibre transmission system Grosskopf, G.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1988 | Effect of channel spacing in an optical two-channel DPSK transmission system with optical amplifiers Gross Kopf, G.; Ludwig, R. | Zeitschriftenaufsatz |
1988 | Four-wave mixing in a semiconductor laser amplifier Grosskopf, G.; Ludwig, R.; Waarto, R.G.; Wegen, H.G. | Zeitschriftenaufsatz |
1988 | Semiconductor-laser amplifier as an optical controlled switch Grosskopf, G.; Ludwig, R.; Molt, R.; Weber, H.G.; Zhang, S.B. | Zeitschriftenaufsatz |
1987 | Gain properties of semiconductor laser amplifiers with reduced facet reflectivity Grosskopf, G.; Ludwig, R. | Zeitschriftenaufsatz |
1987 | Optical amplifier configurations with low polarisation sensitivity Grosskopf, G.; Ludwig, R.; Waarts, R.G.; Weber, H.G. | Zeitschriftenaufsatz |
1987 | Polarization insensitive optical amplifier configurations Grosskopf, G.; Ludwig, R.; Molt, R.; Weber, H.G. | Konferenzbeitrag |
1986 | Crosstalk in optical amplifiers for two-channel transmission Grosskope, G.; Ludwig, R.; Weber, H.G. | Zeitschriftenaufsatz |
1986 | Experiments on optical amplifiers for two channel transmission Grosskopf, G.; Kuller, L.; Ludwig, R.; Molt, R.; Weber, H.G. | Konferenzbeitrag |
1986 | Ten-channel coherent optic fibre transmission using an optical traveling wave amplifier Braun, R.-P.; Ludwig, R.; Molt, R. | Konferenzbeitrag |