Fraunhofer-Gesellschaft

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Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2008An 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
2007All-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
2007Geschwindigkeitsrekord auf der Datenautobahn
Schmidt-Langhorst, C.; Schubert, C.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
2006High-speed transmission based on a 40 Gbaud DQPSK system
Schubert, C.; Ferber, S.; Ludwig, R.; Schmidt-Langhorst, C.; Weber, H.G.
Konferenzbeitrag
2006Investigation of fiber based gates for time division demultiplexing up to 640 Gbit/s
Marembert, V.; Schubert, C.; Schmidt-Langhorst, C.; Kroh, M.; Ferber, S.; Weber, H.G.
Konferenzbeitrag
2006Single 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
2006Single channel transmission beyond 1 Tbit/s
Schubert, C.; Ludwig, R.; Ferber, S.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G.
Konferenzbeitrag
2006Single channel transmission beyond 1 Tbit/s
Ludwig, R.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G.
Konferenzbeitrag
2006Single channel transmission beyond 1 Tbit/s
Ludwig, R.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G.
Konferenzbeitrag
2006Terabit transmission on a single wavelength channel
Schubert, C.; Schmidt-Langhorst, C.; Ludwig, R.; Ferber, S.; Hüttl, B.; Weber, H.G.
Konferenzbeitrag
2006Transmitter 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
2006Ultrafast transmission technology
Ludwig, R.; Ferber, S.; Schubert, C.; Schmidt-Langhorst, C.; Hüttl, B.; Weber, H.G.
Konferenzbeitrag
2006Ultrahigh-speed OTDM-transmission technology
Weber, H.G.; Ludwig, R.; Ferber, S.; Schmidt-Langhorst, C.; Kroh, M.; Marembert, V.; Boerner, C.; Schubert, C.
Zeitschriftenaufsatz
2005160 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
2005160 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
2005170 Gbit/s single-polarization transmission over 650 km SSMF with 130 km spans using RZ-DPSK
Weisser, S.; Raddatz, L.; Benz, A.; Ferber, S.; Boerner, C.; Ludwig, P.; Weber, H.G.
Konferenzbeitrag
2005320 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
200540 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
2005640 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
2005640 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
200580 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
2005Burst 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
2005Investigations of fiber Kerr switch. Nonlinear phase shift measurements and optical time-division demultiplexing of 320 Gbit/s DPSK signals
Marembert, V.; Schubert, C.; Weinert, C.; Weber, H.G.; Schulze, K.; Futami, F.; Watanabe, S.
Konferenzbeitrag
2005Optical 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
2005Reduction of pattern effects in an SOA-based 40 Gb/s wavelength converter
Marembert, V.; Schubert, C.; Weber, H.G.; Melo, A.M.; Randel, S.; Petermann, K.
Konferenzbeitrag
2005Single 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
2005Single-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
2005Technologies enabling ultrahigh speed transmission
Ludwig, R.; Ferber, S.; Boerner, C.; Schubert, C.; Schmidt-Langhorst, C.; Kroh, M.; Marembert, V.; Weber, H.G.
Konferenzbeitrag
2005Time division add-drop multiplexing up to 320 Gbit/s
Schubert, C.; Schmidt-Langhorst, C.; Schulze, K.; Marembert, V.; Weber, H.G.
Konferenzbeitrag
2004160 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
2004Adaptive 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
2004High-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
2003160 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
2003160 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
2003160 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
2003Comparison 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
2003Error-free all-optical add-drop multiplexing at 160 Gbit/s
Schubert, C.; Schmidt, C.; Ferber, S.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
2003Investigations on phase noise in a semiconductor mode-locked laser
Kroh, M.; Kueller, L.; Ludwig, L.; Schmidt, C.; Weber, H.G.
Konferenzbeitrag
2003Monolithically 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
2003Phase dynamics of semiconductor optical amplifiers at 10-40 GHz
Schares, L.; Schubert, C.; Schmidt, C.; Weber, H.G.; Occhi, L.; Guekos, G.
Zeitschriftenaufsatz
2002160 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
2002Characterization of switching windows of an 160-Gb/s all-optical demultiplexer with database rates of 10 and 40 Gb/s
Toptchiyski, G.; Randel, S.; Petermann, K.; Schubert, C.; Berger, J.; Weber, H.G.
Zeitschriftenaufsatz
2002Comparison 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
2002Complete 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
2002Enabling 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
2002Impact 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
2002Optical 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
2001160 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
2001160 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
2001160 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
2001160 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
2001160 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
2001160 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
2001160-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
2001160-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
2001Active semiconductor-based grating waveguide structures
Dudovich, N.; Levy-Yurista, G.; Sharon, A.; Friesem, A.A.; Weber, H.G.
Zeitschriftenaufsatz
2001Application of asynchronous amplitude histograms for performance monitoring of RZ signals
Weinert, C.M.; Schmidt, C.; Weber, H.G.
Konferenzbeitrag
2001Clock 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
2001Experimental 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
2001High 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
2001Hybrid 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
2001Nonlinear optical intensity filters: Experiment and design rules
Weinert, C.M.; Sizmann, A.; Ludwig, R.; Schubert, C.; Feiste, U.; Weber, H.G.
Konferenzbeitrag
2001Optical 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
2001Optimization of SOA-based Sagnac-interferometer switches for demultiplexing to 10 and 40 Gb/s
Diez, S.; Hilliger, E.; Korh, M.; Schmidt, C.; Schubert, C.; Weber, H.G.; Occhi, L.; Schares, L.; Guekos, G.; Oxenlowew, L.K.
Zeitschriftenaufsatz
2001Sampling pulses with semiconductor optical amplifiers
Jiang, L.A.; Ippen, E.P.; Feiste, U.; Diez, S.; Hilliger, E.; Schmidt, C.; Weber, H.G.
Zeitschriftenaufsatz
2000160 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
200080 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
2000Analysis 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
2000Femtosecond pulse source with grating-waveguide structure
Pawlowski, E.; Friesem, A.A.; Kuller, L.; Levy-Yurista, G.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
2000PMD 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
2000Unrepeatered 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
2000Unrepeatered 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
2000Unrepeatered 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
2000Unrepeatered 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
1999160 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
1999160-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
199940 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
199980 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
199980-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
1999Applications of SOA's for optical signal processing and OTDM
Ludwig, R.; Diez, S.; Hilliger, E.; Schmidt, C.; Weber, H.G.
Konferenzbeitrag
1999Experimental 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
1999Gain-transparent SOA-switch for high-bitrate OTDM add/drop multiplexing
Diez, S.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
1999High-speed transmission over standard fiber
Weber, H.G.; Breuer, D.; Feiste, U.; Koltchanov, I.; Ludwig, R.; Weinert, C.M.
Konferenzbeitrag
1999Mode-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
1999RZ 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
19984-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
199840 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
199840 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
199840 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
1998All-optical switch for TDM and WDM/TDM systems demonstrated in a 640 Gbit/s demultiplexing experiment
Diez, S.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
1998Effect 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
1998Novel gain-transparent SOA-switch for high bitrate OTDM add/drop multiplexing
Diez, S.; Ludwig, R.; Patzak, E.; Weber, H.G.
Konferenzbeitrag
1998Simultaneous sampling of optical pulse intensities and wavelengths by four-wave mixing in a semiconductor optical amplifier
Diez, S.; Schmidt, C.; Hoffmann, D.; Bornholdt, C.; Sartorius, B.; Weber, H.G.; Jiang, L.; Krotkus, A.
Zeitschriftenaufsatz
1998A tunable femtosecond modelocked semiconductor laser for applications in OTDM-systems
Ludwig, R.; Diez, S.; Ehrhardt, A.; Kuller, L.; Pieper, W.; Weber, H.G.
Zeitschriftenaufsatz
1997Birefringence 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
1997Extinction 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
1997Four-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
1997Gb/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
1997Switching window of picosecond pulse switching using four-wave mixing in semiconductor-optical amplifiers
Schmidt, C.; Diez, S.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
1997Techniques for 40 Gbit/s OTDM-systems
Pieper, W.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
1997Unrepeated 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
1997Unrepeatered 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
199610 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
199640 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
1996All-optical polarisation and wavelength independent 3R signal regenerator
Pieper, W.; Weich, K.; Ludwig, R.; Patzak, E.; Weber, H.G.
Zeitschriftenaufsatz
1996All-optical polarization and wavelength independent 3R signal regenerator
Pieper, W.; Weich, K.; Ludwig, R.; Patzak, E.; Weber, H.G.
Konferenzbeitrag
1996Characterization 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
1996Fiber loop optical buffer
Langenhorst, R.; Eiselt, M.; Pieper, W.; Grosskopf, G.; Ludwig, R.; Kuller, L.; Dietrich, E.; Weber, H.G.
Zeitschriftenaufsatz
1996Four-wave mixing in semiconductor laser amplifiers: Applications for optical communication systems
Ludwig, R.; Pieper, W.; Schnabel, R.; Diez, S.; Weber, H.G.
Zeitschriftenaufsatz
1996Four-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
1996Monolithically 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
1996Monolithically integrated nonlinear Sagnac interferometer and its application as a 20 Gbit/s all-optical demultiplexer
Jahn, E.; Agrawal, N.; Pieper, W.; Ehrke, H.-J.; Franke, D.; Weber, H.G.; Furst, W.
Konferenzbeitrag
1996Optical 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
1996Ultrafast optical signal processing using semiconductor laser amplifiers
Schnabel, R.; Ludwig, R.; Pieper, W.; Diez, S.; Weber, H.G.
Zeitschriftenaufsatz
19953*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
199540 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
199540 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
1995Four-wave mixing and asymmetric nonlinear gain in a semiconductor-laser amplifier
Ludwig, R.; Schnabel, R.; Weber, H.G.; Wissenfeld, J.
Konferenzbeitrag
1995Optical time-domain demultiplexing using semiconductor laser amplifiers
Eiselt, M.; Pieper, W.; Schnabel, R.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
1994Cross talk in a fiber-loop optical buffer
Pieper, W.; Eiselt, M.; Ehrhardt, A.; Grosskopf, G.; Langenhorst, R.; Weber, H.G.
Konferenzbeitrag
1994Investigation of crosstalk interference in a fibre loop optical buffer
Pieper, W.; Eiselt, M.; Grosskopf, G.; Langenhorst, R.; Ehrhardt, A.; Weber, H.G.
Zeitschriftenaufsatz
1994Nonlinearity-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
1994Nonlinearity-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
1994Polarization 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
1993All-optical and gate using femtosecond nonlinear gain dynamics in semiconductor laser amplifiers
Schnabel, R.; Pieper, W.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
1993All-optical high speed demultiplexing with a semiconductor laser amplifier in a loop mirror configuration
Eiselt, M.; Pieper, W.; Weber, H.G.
Zeitschriftenaufsatz
1993Decision gate for all-optical data retiming using a semiconductor laser amplifier in a loop mirror configuration
Eiselt, M.; Pieper, W.; Weber, H.G.
Zeitschriftenaufsatz
1993Multiterahertz 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
1993One 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
1993Optical loop mirror with semiconductor laser amplifier: Application as optical correlator
Eiselt, M.; Ehrhardt, A.; Weber, H.G.
Konferenzbeitrag
1993Photonic 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
1993Polarisation 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
1993Semiconductor laser amplifier as optical switching gate
Ehrhardt, A.; Eiselt, M.; Grossopf, G.; Kuller, L.; Ludwig, R.; Pieper, W.; Schnabel, R.; Weber, H.G.
Zeitschriftenaufsatz
1993Semiconductor laser amplifier in loop mirror configurations for signal-processing
Eiselt, M.; Pieper, W.; Weber, H.G.
Konferenzbeitrag
1993Wavelength conversion and switching of high speed data signals using semiconductor laser amplifiers
Schnabel, R.; Pieper, W.; Ehrhardt, M.; Eiselt, M.; Weber, H.G.
Zeitschriftenaufsatz
1992Photonic ATM switching with semiconductor laser amplifier gates
Eiselt, M.; Grosskopf, G.; Ludwig, R.; Pieper, W.; Weber, H.G.
Zeitschriftenaufsatz
1991Balanced phase and polarization diversity coherent optical receiver
Langenhorst, R.; Pieper, W.; Eiselt, M.; Rohde, D.; Weber, H.G.
Zeitschriftenaufsatz
1991Bandwidth efficient operation of phase diversity reception compared with heterodyne reception
Langenhorst, R.; Pieper, W.; Eiselt, M.; Rohde, D.; Weber, H.G.
Zeitschriftenaufsatz
1991BER measurements in random access fibre loop optical memory
Dietrich, E.; Grosskopf, G.; Kuller, L.; Ludwig, R.; Pieper, W.; Weber, H.G.
Zeitschriftenaufsatz
1991Experimental studies on bandwidth efficient operation of phase diversity in comparison with heterodyne reception
Langenhorst, R.; Pieper, W.; Eiselt, M.; Rohde, D.; Weber, H.G.
Konferenzbeitrag
1991Optical signal processing using semiconductor laser amplifiers
Weber, H.G.; Grosskopf, G.; Ludwig, R.; Patzak, E.; Schnabel, R.
Konferenzbeitrag
1991Random 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
1991Semiconductor laser amplifiers as all-optical frequency converters
Schunk, N.; Grosskopf, G.; Ludwig, R.; Schnabel, R.; Weber, H.G.
Konferenzbeitrag
1991Transmission experiments employing a bulk-optical device for simultaneous phase and polarization diversity reception
Eiselt, M.; Langenhorst, R.; Pieper, W.; Rohde, D.; Weber, H.G.
Konferenzbeitrag
1990Balanced phase and polarization diversity receiver in a 565 Mbit/s DPSK transmission system
Langenhorst, R.; Pieper, W.; Eiselt, M.; Rohde, D.; Weber, H.G.
Konferenzbeitrag
1990Frequency conversion by four-wave-mixing in LD amplifiers
Grosskopf, G.; Ludwig, R.; Schnabel, R.; Schunk, N.; Weber, H.G.
Konferenzbeitrag
1990Frequency 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
1990Optical amplifiers in fibre optic communication networks
Grosskopf, G.; Ludwig, R.; Schnabel, R.; Schunk, N.; Weber, H.G.
Konferenzbeitrag
1990Optical travelling wave amplifiers with multi-section semiconductor-laser structures
Ludwig, R.; Moehrle, M.; Rosenzweig, M.; Schnabel, R.; Schunk, N.; Weber, H.G.
Zeitschriftenaufsatz
1990Properties of two-section traveling wave amplifiers
Ludwig, R.; Moerhrle, M.; Rosenzweig, M.; Schnabel, R.; Schunk, N.; Weber, H.G.
Konferenzbeitrag
1989Balanced phase diversity receiver in 565 Mbit/s DPSK transmission system
Langenhorst, R.; Pieper, W.; Weber, H.G.; Knupke, H.; Fluge, M.; Wenke, G.
Zeitschriftenaufsatz
1989Characteristics of semiconductor laser optical amplifier as phase modulator
Grosskopf, G.; Ludwig, R.; Schnabel, R.; Weber, H.G.
Zeitschriftenaufsatz
1989A fast polarization controller for coherent phase diversity receivers
Frederiksen, P.T.; Fluge, M.; Dietrich, E.; Weber, H.G.
Zeitschriftenaufsatz
1989Phase diversity transmission experiments employing novel optical and electronic components
Langenhorst, R.; Wenke, G.; Fluge, M.; Pieper, W.; Weber, H.G.
Konferenzbeitrag
1989Semiconductor 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
1989Semiconductor laser optical amplifiers in switching and distribution networks
Grosskopf, G.; Kuller, L.; Ludwig, R.; Schnabel, R.; Weber, H.G.
Zeitschriftenaufsatz
1989Wideband bipolar multiplier IC with high dynamic range for use in coherent optical receivers
Fluge, M.; Frederiksen, P.T.; Enning, B.; Walf, G.; Weber, H.G.; Rein, H.M.
Zeitschriftenaufsatz
1988140 Mbit/s DPSK transmission using an all-optical frequency convertor with a 4000 GHz conversion range
Grosskopf, G.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
1988Application of nonlinear effects in semiconductor-laser optical amplifiers
Grosskopf, G.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
1988Cascaded in-line optical amplifiers in multichannel coherent optical transmission
Grosskopf, G.; Ludwig, R.; Weber, H.G.
Konferenzbeitrag
1988Cascaded inline semiconductor laser amplifiers in a coherent optical fibre transmission system
Grosskopf, G.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
1988Does molecular environment cause a substructure underlying the expected eigenstates of a molecule?
Weber, H.G.
Zeitschriftenaufsatz
1988Semiconductor-laser amplifier as an optical controlled switch
Grosskopf, G.; Ludwig, R.; Molt, R.; Weber, H.G.; Zhang, S.B.
Zeitschriftenaufsatz
1987Optical amplifier configurations with low polarisation sensitivity
Grosskopf, G.; Ludwig, R.; Waarts, R.G.; Weber, H.G.
Zeitschriftenaufsatz
1987Polarization insensitive optical amplifier configurations
Grosskopf, G.; Ludwig, R.; Molt, R.; Weber, H.G.
Konferenzbeitrag
1986Crosstalk in optical amplifiers for two-channel transmission
Grosskope, G.; Ludwig, R.; Weber, H.G.
Zeitschriftenaufsatz
1986Experiments on optical amplifiers for two channel transmission
Grosskopf, G.; Kuller, L.; Ludwig, R.; Molt, R.; Weber, H.G.
Konferenzbeitrag