Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2019400-Gb/s Single-Photodiode Polarization-Agnostic Kramers–Kronig Reception of Distributedly Aggregated Superchannel
Sackey, I.; Elschner, R.; Schmidt-Langhorst, C.; Emmerich, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Zeitschriftenaufsatz
2019Wavelength conversion using fiber cross-phase modulation driven by two pump waves
Watanabe, S.; Kato, T.; Tanimura, T.; Schmidt-Langhorst, C.; Elschner, R.; Sackey, I.; Schubert, C.; Hoshida, T.
Zeitschriftenaufsatz
2018Distributed aggregation and reception of a 400-Gb/s net rate superchannel in a single-photodiode 110-GHz Kramers-Kronig receiver
Sackey, I.; Schmidt-Langhorst, C.; Emmerich, R.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Konferenzbeitrag
2018Fiber-optic frequency shifting of THz-range WDM signal using orthogonal pump-signal polarization configuration
Kato, T.; Watanabe, S.; Tanimura, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Hoshida, T.
Konferenzbeitrag
2018Improving achievable information rates of 64-GBd PDM-64QAM by nonlinear transmitter predistortion
Elschner, R.; Emmerich, R.; Schmidt-Langhorst, C.; Frey, F.; Berenguer, P.W.; Fischer, J.K.; Grießer, H.; Rafique, D.; Elbers, J.-P.; Schubert, C.
Konferenzbeitrag
2018Waveband-Shift-Free Optical Phase Conjugator for Spectrally Efficient Fiber Nonlinearity Mitigation
Sackey, I.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Zeitschriftenaufsatz
2017112 Gb/s PDM-PAM4 Generation and 80 km Transmission Using a Novel Monolithically Integrated Dual-Polarization Electro-Absorption Modulator InP PIC
Baier, M.; Soares, F.M.; Zheng, Z.; Schmidt-Langhorst, C.; Elschner, R.; Frey, F.; Gruner, M.; Fischer, J.K.; Schubert, C.; Moehrle, M.; Grote, N.; Schell, M.
Konferenzbeitrag
2017Advanced polarization-insensitive optical signal processing using orthogonal signal and idler fields
Schmidt-Langhorst, C.; Elschner, R.; Sackey, I.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Konferenzbeitrag
2017Colorless C-band WDM system enabled by coherent reception of 56-GBd PDM-16QAM using an high-bandwidth ICR with TIAs
Emmerich, R.; Elschner, R.; Schmidt-Langhorst, C.; Elzakker, G.; Hoffmann, J.; Umbach, A.; Schubert, C.
Konferenzbeitrag
2017Continuously tunable optical frequency shift of 1.6-Tb/s superchannel up to THz-range by polarization switched frequency conversion
Kato, T.; Watanabe, S.; Tanimura, T.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Hoshida, T.
Konferenzbeitrag
2017Fiber Nonlinearity Mitigation in 800-km Transmission of a 1.6-Tb/s Superchannel Using Waveband-Shift-Free Optical Phase Conjugation
Schmidt-Langhorst, C.; Sackey, I.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Konferenzbeitrag
2017Fiber-optic signal processing using frequency conversion for optical node
Kato, T.; Watanabe, S.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Hoshida, T.
Konferenzbeitrag
2017Four-Dimensional Trellis Coded Modulation for Flexible Optical Communications
Alreesh, S.; Schmidt-Langhorst, C.; Emmerich, R.; Berenguer, P.W.; Schubert, C.; Fischer, J.K.
Zeitschriftenaufsatz
2017Novel wavelength-shift-free optical phase conjugator used for fiber nonlinearity mitigation in 200-Gb/s PDM-16QAM transmission
Sackey, I.; Elschner, R.; Schmidt-Langhorst, C.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Konferenzbeitrag
2017THz-Range Optical Frequency Shifter for Dual Polarization WDM Signals Using Frequency Conversion in Fiber
Kato, T.; Watanabe, S.; Tanimura, T.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Hoshida, T.
Zeitschriftenaufsatz
2016Coherent optical subcarrier processing and add/drop multiplexing
Schmidt-Langhorst, C.; Richter, T.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Hoshida, T.; Schubert, C.
Konferenzbeitrag
2016Coherent-optical in-line add/drop of PDM tributaries of subcarrier multiplexed signals
Kato, T.; Tanimura, T.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Watanabe, S.
Zeitschriftenaufsatz
2016Distributed aggregation of spectrally efficient single- and dual-polarization super-channels by optical frequency conversion in fiber
Elschner, R.; Richter, T.; Schmidt-Langhorst, C.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Zeitschriftenaufsatz
2016Four-dimensional trellis coded modulation for flexible optical transponders
Alreesh, S.; Schmidt-Langhorst, C.; Emmerich, R.; Berenguer, P.W.; Schubert, C.; Fischer, J.K.
Konferenzbeitrag
2016In-line optical signal multiplexing by polarization-insensitive fiber frequency conversion
Kato, T.; Tanimura, T.; Hoshida, T.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2016Subcarrier polarization manipulation using orthogonal dual phase-modulation in fiber
Kato, T.; Tanimura, T.; Hoshida, T.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2016THz-range optical frequency shifter for dual polarization WDM signals using frequency conversion in fibre
Kato, T.; Watanabe, S.; Tanimura, T.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Hoshida, T.
Konferenzbeitrag
2015Broadband coherent-optical add/drop multiplexing over 400-GHz bandwidth by fiber frequency conversion
Kato, T.; Tanimura, T.; Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2015Coherent subcarrier processing node based on optical frequency conversion and free-running lasers
Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Zeitschriftenaufsatz
2015Distributed 1-Tb/s all-optical aggregation capacity in 125-GHz optical bandwidth by frequency conversion in fiber
Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Molle, L.; Alreesh, S.; Kato, T.; Tanimura, T.; Watanabe, S.; Fischer, J.K.; Schubert, C.
Konferenzbeitrag
2015Efficient signal multiplexing scheme based on optical signal processing
Kato, T.; Tanimura, T.; Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2015Experimental analysis of nonlinear interference noise in heterogeneous flex-grid WDM transmission
Schmidt-Langhorst, C.; Elschner, R.; Frey, F.; Emmerich, R.; Schubert, C.
Konferenzbeitrag
2015Experimental investigation of a four-dimensional 256-ary lattice-based modulation format
Eriksson, T.A.; Alreesh, S.; Schmidt-Langhorst, C.; Frey, F.; Berenguer, P.W.; Schubert, C.; Fischer, J.K.; Andrekson, P.A.; Karlsson, M.; Agrell, E.
Konferenzbeitrag
2015FPGA implementation of a data-aided single-carrier frequency-domain equalizer for format-flexible receivers
Elschner, R.; Frey, F.; Schmidt-Langhorst, C.; Fischer, J.K.; Schubert, C.
Konferenzbeitrag
2015Generation of ultra-dense superchannels using frequency conversion in optical fibers
Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2015Generation, transmission, and detection of 4-D set-partitioning QAM signals
Fischer, J.K.; Schmidt-Langhorst, C.; Alreesh, S.; Elschner, R.; Frey, F.; Berenguer, P.W.; Molle, L.; Nölle, M.; Schubert, C.
Zeitschriftenaufsatz
2015Investigation of CAZAC sequences for data-aided channel estimation considering nonlinear optical transmission
Nölle, M.; Frey, F.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Fischer, J.K.
Konferenzbeitrag
2015Performance of CAZAC training sequences in data-aided singlecarrier optical transmission systems
Noelle, M.; Elschner, R.; Frey, F.; Schmidt-Langhorst, C.; Fischer, J.K.; Schubert, C.
Konferenzbeitrag
2015Spatially distributed aggregation of a polarization-division multiplexed superchannel by frequency conversion in fiber
Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2015Transmission of 2048SP-QAM Nyquist-WDM signals
Alreesh, S.; Schmidt-Langhorst, C.; Elschner, R.; Frey, F.; Berenguer, P.W.; Molle, L.; Noelle, M.; Schubert, C.; Fischer, J.K.
Konferenzbeitrag
2015Transmission performance of 4D 128SP-QAM with forward error correction coding
Alreesh, S.; Schmidt-Langhorst, C.; Frey, F.; Berenguer, P.W.; Schubert, C.; Fischer, J.K.
Zeitschriftenaufsatz
2015Versatile coherent in-line 4-, 16-, 32-QAM subcarrier add/drop-multiplexing by optical frequency conversion
Schmidt-Langhorst, C.; Richter, T.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2014Bandwidth-variable transceivers based on four-dimensional modulation formats
Fischer, J.K.; Alreesh, S.; Elschner, R.; Frey, F.; Nölle, M.; Schmidt-Langhorst, C.; Schubert, C.
Zeitschriftenaufsatz
2014Coherent in-line substitution of OFDM subcarriers using fiber-frequency conversion and free-running lasers
Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2014Coherent reception and 126 GHz bandwidth digital signal processing of CO-OFDM superchannel generated by fiber frequency conversion
Tanimura, T.; Kato, T.; Okabe, R.; Oda, S.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Rasmussen, J.C.; Watanabe, S.
Konferenzbeitrag
2014Data-aided DSP for flexible transceivers
Elschner, R.; Frey, F.; Schmidt-Langhorst, C.; Fischer, J.K.; Schubert, C.
Konferenzbeitrag
2014Distributed generation of a 400-Gb/s nyquist 16QAM dense superchannel by fiber-frequency conversion
Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2014Performance comparison of different 8QAM constellations for the use in flexible optical networks
Nölle, M.; Frey, F.; Elschner, R.; Schmidt-Langhorst, C.; Napoli, A.; Schubert, C.
Konferenzbeitrag
2014Tolerances for add/drop operation of a coherent multiplexing node based on fiber frequency conversion
Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Tanimura, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2014Transmission of 512SP-QAM Nyquist-WDM signals
Fischer, J.K.; Schmidt-Langhorst, C.; Alreesh, S.; Elschner, R.; Frey, F.; Berenguer, P.W.; Molle, L.; Nölle, M.; Schubert, C.
Konferenzbeitrag
2013Data-aided digital signal processing for format-flexible transponders
Elschner, R.; Frey, F.; Meuer, C.; Fischer, J.K.; Alreesh, S.; Schmidt-Langhorst, C.; Molle, L.; Tanimura, T.; Schubert, C.
Konferenzbeitrag
2013Four-dimensional coded modulation: 6PolSK-QPSK
Fischer, J.K.; Alreesh, S.; Tanimura, T.; Elschner, R.; Frey, F.; Meuer, C.; Molle, L.; Schmidt-Langhorst, C.; Schubert, C.
Konferenzbeitrag
2013Narrow guard-band distributed Nyquist-WDM using fiber frequency conversion
Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Kato, T.; Watanabe, S.; Schubert, C.
Konferenzbeitrag
2013Nonlinear transmission of 6PolSK-QPSK signals using coded modulation and digital back propagation
Tanimura, T.; Alreesh, S.; Fischer, J.K.; Schmidt-Langhorst, C.; Frey, F.; Meuer, C.; Elschner, R.; Molle, L.; Schubert, C.
Konferenzbeitrag
2013Optimization of Subcarrier Spacing of 400-Gb/s Dual-Carrier Nyquist PDM-16QAM in a Flexgrid Scenario
Schmidt-Langhorst, C.; Frey, F.; Nölle, M.; Elschner, R.; Meuer, C.; Wilke-Berenguer, P.; Schubert, C.
Konferenzbeitrag
2013Precise Remote Optical Carrier Addition Into 200-Gb/s CO-OFDM Channel Using Fiber Frequency Conversion
Kato, T.; Okabe, R.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2013Removal of local frequency fluctuation in distributed coherent-optical OFDM
Kato, T.; Okabe, R.; Richter, T.; Elschner, R.; Schmidt-Langhorst, C.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2013Software-defined transponders for future flexible grid networks
Elschner, R.; Frey, F.; Schmidt-Langhorst, C.; Fischer, J.K.; Nölle, M.; Schubert, C.
Konferenzbeitrag
2012Beyond 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
2012Experimental demonstration of a format-flexible single carrier coherent receiver using data-aided digital signal processing
Elschner, R.; Frey, F.; Meuer, C.; Fischer, J.K.; Alreesh, S.; Schmidt-Langhorst, C.; Molle, L.; Tanimura, T.; Schubert, C.
Konferenzbeitrag
2012Experimental demonstration of a format-flexible single-carrier coherent receiver using data-aided digital signal processing
Elschner, R.; Frey, F.; Meuer, C.; Fischer, J.K.; Alreesh, S.; Schmidt-Langhorst, C.; Molle, L.; Tanimura, T.; Schubert, C.
Zeitschriftenaufsatz
2012Experimental investigation of 126-Gb/s 6PolSK-QPSK signals
Fischer, J.K.; Alreesh, S.; Elschner, R.; Frey, F.; Meuer, C.; Molle, L.; Schmidt-Langhorst, C.; Tanimura, T.; Schubert, C.
Konferenzbeitrag
2012Experimental investigation of 126-Gb/s 6PolSKQPSK signals
Fischer, J.K.; Alreesh, S.; Elschner, R.; Frey, F.; Meuer, C.; Molle, L.; Schmidt-Langhorst, C.; Tanimura, T.; Schubert, C.
Zeitschriftenaufsatz
2012Influence of channel spacing on ultra long-haul WDM transmission of 8×112 Gb/s PS-QPSK signals
Nölle, M.; Fischer, J.K.; Molle, L.; Schmidt-Langhorst, C.; Schubert, C.
Konferenzbeitrag
2012Influence of channel spacing on ultra long-haul WDM transmission of 8x112 Gb/s PS-QPSK signals
Nölle, M.; Fischer, J.K.; Molle, L.; Schmidt-Langhorst, C.; Schubert, C.
Konferenzbeitrag
2012Is PS-QPSK really an alternative to PDM-QPSK?
Fischer, J.K.; Nölle, M.; Molle, L.; Schmidt-Langhorst, C.; Schubert, C.
Konferenzbeitrag
2012New trends and challenges in optical digital transmission systems
Schubert, C.; Fischer, J.K.; Schmidt-Langhorst, C.; Elschner, R.; Molle, L.; Nölle, M.; Richter, T.
Konferenzbeitrag
2012New trends and challenges in optical digital transmission systems
Schubert, C.; Fischer, J.K.; Schmidt-Langhorst, C.; Elschner, R.; Molle, L.; Nölle, M.; Richter, T.
Konferenzbeitrag
2012A self-coherent receiver for detection of PolMUX coherent signals
Li, J.S.; Schmogrow, R.; Hillerkuss, D.; Schindler, P.C.; Nazarathy, M.; Schmidt-Langhorst, C.; Ezra, S.B.; Tselniker, I.; Koos, C.; Freude, W.; Leuthold, J.
Zeitschriftenaufsatz
2012Time-domain model of quantum-dot semiconductor optical amplifiers for wideband optical signals
Puris, D.; Schmidt-Langhorst, C.; Lüdge, K.; Majer, N.; Schöll, E.; Petermann, K.
Zeitschriftenaufsatz
2012Transmission 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
2012Wide-range wavelength conversion of 40-Gb/s NRZ-DPSK signals using a 1.3-m quantum-dot semiconductor optical amplifier
Schmeckebier, H.; Meuer, C.; Arsenijevi, D.; Fiol, G.; Schmidt-Langhorst, C.; Schubert, C.; Eisenstein, G.; Bimberg, D.
Zeitschriftenaufsatz
201140 Gb/s wavelength conversion via four-wave mixing in a quantum-dot semiconductor optical amplifier
Meuer, C.; Schmidt-Langhorst, C.; Schmeckebier, H.; Fiol, G.; Arsenijevic, D.; Schubert, C.; Bimberg, D.
Zeitschriftenaufsatz
20118 × 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
201180 Gb/s wavelength conversion using a quantum-dot semiconductor optical amplifier and optical filtering
Meuer, C.; Schmidt-Langhorst, C.; Bonk, R.; Schmeckebier, H.; Arsenijevic, D.; Fiol, G.; Galperin, A.; Leuthold, J.; Schubert, C.; Bimberg, D.
Zeitschriftenaufsatz
2011All-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
2011Characterization 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
2011Coherent detection using parallel optical sampling
Fischer, J.K.; Ludwig, R.; Molle, L.; Schmidt-Langhorst, C.; Leonhardt, C.C.; Matiss, A.; Schubert, C.
Konferenzbeitrag
2011Comparison of 8 x 112 Gb/s PS-QPSK and PDM-QPSK signals over transoceanic distances
Nölle, M.; Fischer, J.K.; Molle, L.; Schmidt-Langhorst, C.; Peckham, D.; Schubert, C.
Zeitschriftenaufsatz
2011Experimental investigation of 84-Gb/s and 112-Gb/s polarization-switched quadrature phase-shift keying signals
Fischer, J.K.; Molle, L.; Nölle, M.; Gross, D.D.; Schmidt-Langhorst, C.; Schubert, C.
Zeitschriftenaufsatz
2011High-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
2011Kohärenter Terabit-Empfänger für optische Datenübertragung im Weitverkehrsnetz der Zukunft (TEO)
Schmidt-Langhorst, C.
Bericht
2011Performance 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
2011Polarization-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
2011Quantum dot semiconductor optical amplifiers at 1.3 m for applications in all-optical communication networks
Schmeckebier, H.; Meuer, C.; Bimberg, D.; Schmidt-Langhorst, C.; Galperin, A.; Schubert, C.
Zeitschriftenaufsatz
2011Quantum-dot semiconductor optical amplifier for filter-assisted 80-Gb/s wavelength conversion
Bimberg, D.; Schmeckebier, H.; Meuer, C.; Schmidt-Langhorst, C.; Bonk, R.; Arsenijevi, D.; Fiol, G.; Galperin, A.; Leuthold, J.; Li, J.; Schubert, C.
Konferenzbeitrag
2011Self-coherent receiver for PolMUX coherent signals
Li, J.; Schmidt-Langhorst, C.; Schmogrow, R.; Hillerkuss, D.; Lauermann, M.; Winter, M.; Worms, K.; Schubert, C.; Koos, C.; Freude, W.; Leuthold, J.
Konferenzbeitrag
2011Simultaneous 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
2011Single 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
2011Transmission 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
2011Ultrafast 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
2011Wavelength conversion of 40-Gb/s NRZ DPSK signals within a 45-nm range using a 1.3 m quantum-dot semiconductor optical amplifier
Meuer, C.; Schmeckebier, H.; Schmidt-Langhorst, C.; Fiol, G.; Arsenijevic, D.; Schubert, C.; Eisenstein, G.; Bimberg, D.
Konferenzbeitrag
2011Wavelength Conversion of 40-Gb/s NRZ DPSK Signals within a 45-nm range using a 1.3µm Quantum-Dot Semiconductor Optical Amplifier
Meuer, C.; Eisenstein, G.; Schmeckebier, H.; Schmidt-Langhorst, C.; Fiol, G.; Arsenijevic, D.; Schubert, C.; Bimberg, D.
Konferenzbeitrag
2010110 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
201080 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
2010Digital 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
2010High 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
2010High-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
2010InP-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
2010Polarization-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
2010Single- 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
2010Terabit/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
2010Terabit/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
20091 Tb/s transmission on a single wavelength channel for future terabit ethernet
Schmidt-Langhorst, C.; Ludwig, R.; Hu, H.; Schubert, C.
Konferenzbeitrag
20091.28 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
2009107 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
2009All-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
2009Characterization 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
2009Demonstration 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
2009Generation 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
2009Mitigation of sampling clock drift in asynchronously under-sampled optical bit pattern monitoring
Zhang, H.; Schmidt-Langhorst, C.; Zhao, W.; Schubert, C.
Konferenzbeitrag
2009Polarization 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
2009Polarization-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
2009Quantum-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
2009Single-channel 1-Tb/s transmission over 480 km DMF for future terabit ethernet systems
Schmidt-Langhorst, C.; Ludwig, R.; Hu, H.; Schubert, C.
Konferenzbeitrag
2008107 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
2008107 Gbit/s RZ-DPSK transmission using an EDTM integrated receiver
Schubert, C.; Ludwig, R.; Hüttl, B.; Hu, H.; Schmidt-Langhorst, C.
Konferenzbeitrag
200853.5 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
2008All-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
2008Impact 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
2008Linewidth 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
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
2007100 Gb/s ETDM receivers
Ludwig, R.; Schubert, C.; Huettl, B.; Schmidt-Langhorst, C.; Derksen, R.H.; Moller, M.
Konferenzbeitrag
2007160 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
2007320 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
2007320 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
200760 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
2007All-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
2007All-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
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
2007Integrated 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
2007Optimization 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
2007Optische 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
2007Transmission Systems beyond 100 Gbit/s
Ludwig, R.; Schmidt-Langhorst, C.; Hüttl, B.; Schubert, C.; Weisser, S.; Raddatz, L.
Konferenzbeitrag
2007Ultrafast optical transmission technologies
Ludwig, R.; Schmidt-Langhorst, C.; Schubert, C.; Hüttl, B.; Weber, H.-G.
Konferenzbeitrag
2007Unrepeated 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
2007Unrepeatered 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
2006107 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
2006160 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
2006Automatic compensation of PMD and chromatic dispersion in a 160 Gb/s transmission experiment
Kieckbusch, S.; Schmidt-Langhorst, C.; Ferber, S.; Schubert, C.; Brinkmeyer, E.; Weber, H.-G.
Konferenzbeitrag
2006High-speed transmission based on a 40 Gbaud DQPSK system
Schubert, C.; Ferber, S.; Ludwig, R.; Schmidt-Langhorst, C.; Weber, H.G.
Konferenzbeitrag
2006Integrated 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
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 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
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
2005160 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
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
2005Design optimization of ultra-high bit-rate NOLM-based OTDM demultiplexers
Melo, A.M.; Marembert, V.; Schubert, C.; Schmidt-Langhorst, C.; Petermann, K.
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
2005Optical sampling techniques
Schmidt-Langhorst, C.; Weber, H.-G.
Zeitschriftenaufsatz
2005Optical sampling technologies and applications
Schmidt-Langhorst, C.; Schubert, C.; Boerner, C.; Ludwig, R.
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
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
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
2004Optical sampling of high bit rate optical data signals
Schmidt-Langhorst, C.
: Weber, H.-G. (Prüfer); Eichler, H.-J. (Prüfer)
Dissertation
2004Ultrafast 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
2004Ultrafast 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