Enabling S-C-L-Band Systems With Standard C-Band Modulator and Coherent Receiver Using Coherent System Identification and Nonlinear Predistortion
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TLDR
In this paper , an end-to-end electro-optical Volterra-based coherent system identification followed by nonlinear digital predistortion of the transmitter was applied to achieve 150nm operation bandwidth of the transmission system by performing only a single identification and predisting at a reference wavelength of 1500 nm.Abstract:
One promising and competitive solution to keep up with the rapid growth in data traffic while at the same time addressing increasing network cost, is the efficient reuse of legacy optical fiber infrastructure. This is highly desirable as deployed single mode fibers represent a valuable asset in the network while new installations would require high additional investments. Multiband (MB) or ultra-wideband (UWB) systems, combined with high symbol rates and higher-order modulation formats, are promising solutions to capitalize the already existing fiber plants. In this contribution, we experimentally demonstrate S-C-L-band reception with 64 GBd dual-polarization (DP) 64-ary and 32-ary quadrature-amplitude modulation (QAM) while using C-band components off-the-shelf (COTS) such as DP-IQ modulators and coherent receivers. To achieve such broadband operation with components that are not optimized for an out-of-band use, mitigation of the associated penalties is decisive. To this end, we apply an end-to-end electro-optical Volterra-based coherent system identification followed by nonlinear digital predistortion of the transmitter. We achieve 150-nm operation bandwidth of the transmission system by performing only a single identification and predistortion at a reference wavelength of 1500 nm. read more
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S-, C- and L-band transmission over a 157 nm bandwidth using doped fiber and distributed Raman amplification.
Benjamin J. Puttnam,Ruben S. Luis,Georg Rademacher,Manuel Mendez-Astudillio,Yoshinari Awaji,Hideaki Furukawa +5 more
TL;DR: In this paper , the authors investigated optical transmission of an ultra-wideband signal in a standard single mode fiber using a near continuous optical bandwidth exceeding 157'nm across the S-, C-and L-bands.
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Multiband Silicon Photonic ePIC Coherent Receiver for 64 GBd QPSK
Pascal M. Seiler,Karsten Voigt,Anna Peczek,Galina Georgieva,Stefan Lischke,Andrea Malignaggi,Lars Zimmermann +6 more
TL;DR: In this paper , a monolithically integrated silicon photonic coherent receiver for O- and C-band coherent communication is presented. But the performance of the O-and C-bands was not compared to the state-of-the-art for the C band.
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DSP-Based Link Tomography for Amplifier Gain Estimation and Anomaly Detection in C+L-Band Systems
Matheus Ribeiro Sena,Robert Emmerich,Mohammad Shariati,C. Santos,Antonio Napoli,Johannes Karl Fischer,Ronald Freund +6 more
TL;DR: In this paper , the authors proposed a novel application for the in-situ power profile estimator by harnessing it on multiple wavelengths to accurately estimate the spectral gain profile of C+L-band in-line Erbium-doped fiber amplifiers deployed in a 280-km single mode fiber link.
Journal ArticleDOI
Characterization, Monitoring, and Mitigation of the I/Q Imbalance in Standard C-Band Transceivers in Multi-Band Systems
Gabriele Di Rosa,Robert Emmerich,Matheus Ribeiro Sena,Johannes Karl Fischer,Colja Schubert,Ronald Freund,Andreas Richter +6 more
TL;DR: This work experimentally characterize the wavelength-dependent frequency-resolved in-phase/quadrature (I/Q) imbalance of a standard C-band IQ-modulator and coherent receiver operating in an S-C-L-band system utilizing receiver-side DSP and validate the effectiveness of a cost-effective strategy for transceiver impairments mitigation and monitoring based on standard wavelength-independent calibration and reduced-complexity DSP.
Journal ArticleDOI
30-GBaud DP 16-QAM transmission in the E-band enabled by bismuth-doped fiber amplifiers.
Aleksandr Donodin,Mingming Tan,Pratim Hazarika,Vladislav Dvoyrin,Ian Phillips,Paul Harper,Sergei K. Turitsyn,Wladek Forysiak +7 more
TL;DR: In this article , the authors report the transmission of five 30-GBaud dual polarization 16-QAM signals over 160 km of standard single-mode fiber in the E-band (1410-1460 nm).
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