Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
201932 GBd 16QAM wireless transmission in the 300 GHz band using a PIN diode for THz upconversion
Castro, Carlos; Nellen, Simon; Elschner, Robert; Sackey, Isaac; Emmerich, Robert; Merkle, Thomas; Globisch, Björn; Felipe, David de; Schubert, Colja
Konferenzbeitrag
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
201964-GBd DP-Bipolar-8ASK Transmission Over 120 km SSMF Employing a Monolithically Integrated Driver and MZM in 0.25-μm SiGe BiCMOS Technology
Mehrpoor, G.R.; Schmidt-Langhorst, C.; Wohlfeil, B.; Elschner, R.; Rafique, D.; Emmerich, R.; Dochhan, A.; Lopez, I.; Rito, P.; Petousi, D.; Kissinger, D.; Zimmermann, L.; Schubert, C.; Schmauss, B.; Eiselt, M.; Elbers, J.P.
Konferenzbeitrag
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
2018Terahertz technologies to deliver optical network quality of experience in wireless systems beyond 5G
Boulogeorgos, Alexandros-Apostolos A.; Alexiou, Angeliki; Merkle, Thomas; Schubert, Colja; Elschner, Robert; Katsiotis, Alexandros; Stavrianos, Panagiotis; Kritharidis, Dimitrios; Chartsias, Panteleimon-Konstantinos; Kokkoniemi, Joonas; Juntti, Markku; Lehtomäki, Janne; Teixeira, António; Rodrigues, Francisco
Zeitschriftenaufsatz
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
2017DAC-Less 32-GBd PDM-256-QAM Using Low-Power InP IQ Segmented MZM
Aimone, A.; Frey, F.; Elschner, R.; Lopez, I.G.; Fiol, G.; Rito, P.; Gruner, M.; Ulusoy, A.C.; Kissinger, D.; Fischer, J.K.; Schubert, C.; Schell, M.
Zeitschriftenaufsatz
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
2017Impact of brillouin backscattering on signal distortions in single-fiber diversity loop based polarization-insensitive FOPAs
Jazayerifar, M.; Sackey, I.; Elschner, R.; Richter, T.; Molle, L.; Berenguer, P.W.; Schubert, C.; Jamshidi, K.; Petermann, 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
2017Numerical assessment and optimization of discrete-variable time-frequency quantum key distribution
Rödiger, J.; Perlot, N.; Mottola, R.; Elschner, R.; Weinert, C.-M.; Benson, O.; Freund, R.
Zeitschriftenaufsatz
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
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
20155 Gbit/s real-time processing using π/4-shift DQPSK for bidirectional radio-over-fibre system
Habel, K.; Fernandez del Rosal, L.; Weide, S.; Hilt, J.; Jungnickel, V.; Elschner, R.; Schubert, C.; Frey, F.; Fischer, J.K.; Freund, R.
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
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
2015Non-reciprocal gain due to counter-propagating pumps in a polarization-independent FOPA with diversity loop
Sackey, I.; Jazayerifar, M.; Elschner, R.; Richter, T.; Meuer, C.; Petermann, K.; Schubert, C.
Konferenzbeitrag
2015Optical phase conjugation for nonlinearity compensation in WDM PDM 16-QAM transmission over dispersion-compensated and dispersion-uncompensated links
Ros, F. da; Sackey, I.; Jazayerifar, M.; Richter, T.; Elschner, R.; Meuer, C.; Nölle, M.; Molle, L.; Petermann, K.; Fischer, J.K.; Schubert, C.; Peucheret, C.
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
2015Perspectives of long-haul WDM transmission systems based on phase-insensitive fiber-optic parametric amplifiers
Jazayerifar, M.; Sackey, I.; Elschner, R.; Ros, F. da; Richter, T.; Meuer, C.; Peucheret, C.; Schubert, C.; Petermann, K.
Konferenzbeitrag
2015Practical implementation and evaluation of a quantum-key-distribution scheme based on the time-frequency uncertainty
Leifgen, M.; Elschner, R.; Perlot, N.; Weinert, C.; Schubert, C.; Benson, O.
Zeitschriftenaufsatz
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
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
2014Characterization of a fiber-optical parametric amplifier in a 5 × 28-GBd 16-QAM DWDM system
Sackey, I.; Elschner, R.; Nölle, M.; Richter, T.; Molle, L.; Meuer, C.; Jazayerifar, M.; Warm, S.; Petermann, K.; Schubert, C.
Konferenzbeitrag
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
2014Coherent UDWDM PON with joint subcarrier reception at OLT
Kottke, C.; Fischer, J.K.; Elschner, R.; Frey, F.; Hilt, J.; Schubert, C.; Schmidt, D.; Wu, Z.; Lankl, B.
Zeitschriftenaufsatz
2014Data-aided DSP for flexible transceivers
Elschner, R.; Frey, F.; Schmidt-Langhorst, C.; Fischer, J.K.; Schubert, C.
Konferenzbeitrag
2014Design and performance evaluation of an OPC device using a dual-pump polarization-independent FOPA
Sackey, I.; Ros, F. da; Richter, T.; Elschner, R.; Jazayerifar, M.; Meuer, C.; Peucheret, C.; Petermann, K.; Schubert, C.
Konferenzbeitrag
2014Digital signal processing for coherent UDWDM passive optical networks
Fischer, J.K.; Elschner, R.; Frey, F.; Hilt, J.; Kottke, C.; Schubert, C.; Wu, Z.; Schmidt, D.; Lankl, B.
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
2014Efficient real-time implementation of a channelizer filter with a weighted overlap-add approach
Frey, F.; Elschner, R.; Kottke, C.; Schubert, C.; Fischer, J.K.
Konferenzbeitrag
2014Impact of SBS on polarization-insensitive single-pump optical parametric amplifiers based on a diversity loop scheme
Jazayerifar, M.; Sackey, I.; Elschner, R.; Warm, S.; Meuer, C.; Schubert, C.; Petermann, K.
Konferenzbeitrag
2014Kerr nonlinearity compensation in a 5×28-GBd PDM 16-QAM WDM system using fiber-based optical phase conjugation
Ros, F. da; Sackey, I.; Elschner, R.; Richter, T.; Meuer, C.; Nölle, M.; Jazayerifar, M.; Petermann, K.; Peucheret, C.; 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
2013Bandwidth-Variable Transceivers Based on 4D Modulation Formats for Future Flexible Networks
Fischer, J.K.; Alreesh, S.; Elschner, R.; Frey, F.; Nölle, M.; Schubert, C.
Konferenzbeitrag
2013Characterization of polarization insensitive FOPA using a polarization-maintaining highly non-linear fiber
Sackey, I.; Richter, T.; Meuer, C.; Elschner, R.; Jazayerifar, M.; Petermann, K.; 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
2013Distributed ultradense optical frequency-division multiplexing using fiber nonlinearity
Elschner, R.; Richter, T.; Kato, T.; Watanabe, S.; Schubert, C.
Zeitschriftenaufsatz
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
2013Investigation of nonlinear effects in long-haul DWDM communication systems with fiber optic parametric in-line amplifiers
Jazayerifar, M.; Warm, S.; Elschner, R.; Kroushkov, D.; Sackey, I.; Meuer, C.; Schubert, C.; Petermann, K.
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
2013Performance evaluation of DWDM communication systems with fiber optical parametric amplifiers
Jazayerifar, M.; Warm, S.; Elschner, R.; Kroushkov, D.; Sackey, I.; Meuer, C.; Schubert, C.; Petermann, K.
Zeitschriftenaufsatz
2013Phase-regeneration of 2ASK-BPSK in a one-mode phase-sensitive amplifier
Richter, T.; Elschner, R.; 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
2013QAM Phase-Regeneration in a Phase-Sensitive Fiber-Amplifier
Richter, T.; Elschner, R.; Schubert, C.
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
2012All-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
2012Chirp removal from directly modulated laser signals by two-stage fiber cross-phase modulation
Kato, T.; Elschner, R.; Richter, T.; Okabe, R.; Meuer, C.; Troppenz, U.; Schubert, C.; Watanabe, S.
Konferenzbeitrag
2012Distributed coherent optical OFDM multiplexing using fiber frequency conversion and free-running lasers
Elschner, R.; Richter, T.; Kato, T.; Watanabe, S.; 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.
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
2012High efficiency CW four-wave mixing at 1.5 m in SOI nano-rib waveguides using p-i-n diodes
Gajda, A.; Winzer, G.; Tillack, B.; Petermann, K.; Zimmermann, L.; Tian, H.; Elschner, R.; Richter, T.; Schubert, C.
Konferenzbeitrag
2012Highly efficient CW parametric conversion at 1550 nm in SOI waveguides by reverse biased p-i-n junction
Gajda, A.; Zimmermann, L.; Jazayerifar, M.; Winzer, G.; Tian, H.; Elschner, R.; Richter, T.; Schubert, C.; Tillack, B.; Petermann, K.
Zeitschriftenaufsatz
2012The implementation of a quantum key distribution scheme based on the frequency-time uncertainty
Leifgen, M.; Elschner, R.; Schubert, C.; Benson, O.
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
2012Parametric amplification and wavelength conversion of single-and dual-polarization DQPSK signals
Richter, T.; Elschner, R.; Gandhe, A.; Petermann, K.; Schubert, C.
Zeitschriftenaufsatz
201112-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
2011Characterization of FWM-induced crosstalk for WDM operation of a fiber-optical parametric amplifier
Elschner, R.; Richter, T.; Schubert, C.
Konferenzbeitrag
2011Multi-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
2011Parametric amplification as an option for optical broadband amplification
Elschner, R.; Richter, T.; Schubert, C.
Konferenzbeitrag
2011Parametric amplification of 112 Gbit/s polarization multiplexed DQPSK signals in a fiber loop configuration
Richter, T.; Elschner, R.; Gandhe, A.; Schubert, C.
Konferenzbeitrag
2011Parametric amplification of 28-GBd NRZ-16QAM signals
Elschner, R.; Richter, T.; Nölle, M.; Hilt, J.; 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
2010Coherent receiver-based compensation of phase distortions induced by single-pump HNLF-based FWM wavelength converters
Richter, T.; Elschner, R.; Molle, L.; Schubert, C.; Petermann, K.
Konferenzbeitrag
2010Single-pump FWM-wavelength conversion in HNLF using coherent receiver-based electronic compensation
Elschner, R.; Richter, T.; Molle, L.; Petermann, K.; Schubert, C.
Konferenzbeitrag
2009Fibre-based parametric wavelength conversion of 86 Gb/s RZ-DQPSK signals with 15 dB gain using a dual-pump configuration
Richter, T.; Elschner, R.; Schubert, C.; Petermann, K.
Konferenzbeitrag
2009Impact of pump-phase modulation on fibre-based parametric wavelength conversion of coherently detected PSK signals
Elschner, R.; Richter, T.; Petermann, K.
Konferenzbeitrag
2009Operational conditions for extinction ratio improvement in ultralong SOAs
Runge, P.; Elschner, R.; Bunge, C.-A.; Petermann, K.; Schlak, M.; Brinker, W.; Sartorius, B.
Zeitschriftenaufsatz
2009Tolerances of counterphased pump-phase modulation in a fibre-based dual-pump wavelength converter for 86 Gb/s RZ-DQPSK
Richter, T.; Elschner, R.; Petermann, K.; Schubert, C.
Konferenzbeitrag
2008Extinction ratio improvement in ultra-long semiconductor optical amplifiers - Two wave competition for regenerative applications
Runge, P.; Elschner, R.; Bunge, C.-A.; Petermann, K.; Schlak, M.; Brinker, W.; Sartorius, B.; Schell, M.
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
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
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