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Error Vector Magnitude as a Performance Measure for Advanced Modulation Formats

Rene Schmogrow, Bernd Nebendahl, Marcus Winter, Arne Josten, David Hillerkuss, Swen Koenig, Joachim Meyer, Michael Dreschmann, Michael Huebner, Christian Koos, Juergen Becker, Wolfgang Freude (+1 others)
2012 IEEE Photonics Technology Letters  
We then show that using appropriate algorithms, Nyquist pulse shaped modulation formats can be encoded on a single wavelength at speeds beyond 100 Gbit/s in real-time.  ...  Finally we discuss the proper reception of Nyquist pulses.  ...  Optics & Photonics (KSOP), and from the German Research Foundation (DFG).  ... 
doi:10.1109/lpt.2011.2172405 fatcat:nvtrqhbqn5de3fqsw3fkm2wi4a

Real-time Nyquist pulse generation beyond 100 Gbit/s and its relation to OFDM

R. Schmogrow, M. Winter, M. Meyer, D. Hillerkuss, S. Wolf, B. Baeuerle, A. Ludwig, B. Nebendahl, S. Ben-Ezra, J. Meyer, M. Dreschmann, M. Huebner (+4 others)
2011 Optics Express  
We then show that using appropriate algorithms, Nyquist pulse shaped modulation formats can be encoded on a single wavelength at speeds beyond 100 Gbit/s in real-time.  ...  Finally we discuss the proper reception of Nyquist pulses.  ...  Optics & Photonics (KSOP), and from the German Research Foundation (DFG).  ... 
doi:10.1364/oe.20.000317 pmid:22274355 fatcat:5hi46cpqhvcdlmimgncy47vplq

Design and Experimental Verification of a Novel Error-Backpropagation-Based Background Calibration for Time Interleaved ADC in Digital Communication Receivers [article]

Fredy Solis, Benjamín T. Reyes, Damián A. Morero, Mario R. Hueda
2022 arXiv   pre-print
performance when 64-QAM and 256-QAM schemes are tested.  ...  Measurements on an emulation platform which includes an 8 bit, 4 GS/s TI-ADC prototype chip fabricated in 130nm CMOS technology, show an almost ideal mitigation of the impact of the mismatches on the receiver  ...  We consider a DP optical coherent system with a 64-QAM modulation scheme, and a symbol rate of 1/T = 96 GBd.  ... 
arXiv:2204.04806v1 fatcat:6cxwhezpa5e3lhepyi55l3k22u

Ultra-High-Capacity Optical Packet Switching Networks with Coherent Polarization Division Multiplexing QPSK/16QAM Modulation Formats

José Delgado Mendinueta, Satoshi Shinada, Hideaki Furukawa, Naoya Wada
2017 Photonics  
This burst-mode receiver is suitable for optical packetized networks that make use of advanced modulation formats such as quadrature amplitude modulation (QAM).  ...  Previously, extensive research has been carried out in our group on OPS-related subsystems.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/photonics4020027 fatcat:rk7a6hau2vclhknq37mmettqnq

Subbanded DSP Architectures Based on Underdecimated Filter Banks for Coherent OFDM Receivers: Overview and recent advances

Moshe Nazarathy, Alex Tolmachev
2014 IEEE Signal Processing Magazine  
) and carrier phase recovery (CPR).  ...  (Four Taps) per Sub-Carrier 2 × 2 MIMO POL DEMUX Drop High/Low Half-Band Polar MSDD Polar MSDD X Y 1.66 GBd 1.66 GBd DFT-Despread Carrier Recovery From SB at Mirror Spectral  ...  uSeful for wIrelIne and wIreleSS electrIcal tranSMISSIon.  ... 
doi:10.1109/msp.2013.2291015 fatcat:y6dthbnlardf5ewunjn7cgjrwi

Full flex-grid asynchronous multiplexing demonstrated with Nyquist pulse-shaping

P. C. Schindler, R. Schmogrow, S. Wolf, B. Baeuerle, B. Nebendahl, C. Koos, W. Freude, J. Leuthold
2014 Optics Express  
The input power dynamic range of a semiconductor optical amplifier and its relevance for access network applications," IEEE Photon.  ...  We give details on the transceiver design with digital signal processing and investigate the implementation penalty as a function of several design parameters such as limited filter length and effective  ...  Acknowledgments This work was supported by the EU projects ACCORDANCE, OTONES, and FOX-C, the Agilent University Relations Program, the German BMBF project CONDOR, by the Karlsruhe School of Optics & Photonics  ... 
doi:10.1364/oe.22.010923 pmid:24921791 fatcat:xu34funtzfbbjeqysbywlfkv3y

Design of a 1 Tb/s Superchannel Coherent Receiver

David S. Millar, Robert Maher, Domanic Lavery, Toshiaki Koike-Akino, Milutin Pajovic, Alex Alvarado, Milen Paskov, Keisuke Kojima, Kieran Parsons, Benn C. Thomsen, Seb J. Savory, Polina Bayvel
2016 Journal of Lightwave Technology  
We demonstrate detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.  ...  We demonstrate detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 × 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.  ...  His doctoral work was concerned with the development of equalization and modulation techniques for the mitigation of fiber nonlinearity in coherent optical transmission systems. He  ... 
doi:10.1109/jlt.2016.2519260 fatcat:lur3zxtn4fcp5fchkm3prfguma

D3.2 First validation of the METRO-HAUL node architecture and optical solutions

Anna Chiadò Piat, Alessandro Percelsi, Morro Roberto, Emilio Riccardi, Laia Nadal, Michela Svaluto Moreolo, Josep Mª Fàbrega, Teresa Yu Bi, Arash Beldachi, Luis Velasco, Marc Ruiz, Jaume Comellas (+28 others)
2019 Zenodo  
The deliverable also includes an early description of the METRO-HAUL node control and management environment and the developed software for controlling all the OIE developed in T3.4.  ...  D3.2 reports the first validation of the METRO-HAUL node architecture and the interconnection, transmission and switching optical solutions developed in T3.1-T3.3 in different disaggregated scenarios.  ...  prototype in a 2×16-GBd dual-carrier polarization-division multiplexed (PDM) 16-QAM configuration and the corresponding optical spectrum.  ... 
doi:10.5281/zenodo.3497044 fatcat:zw3dovnytjfsjjwp7lbx7qhyou

Machine Learning Applications for Short Reach Optical Communication

Yapeng Xie, Yitong Wang, Sithamparanathan Kandeepan, Ke Wang
2022 Photonics  
One of the techniques that has attracted intensive interests in short-reach optical communications is machine learning (ML).  ...  With the rapid development of optical communication systems, more advanced techniques conventionally used in long-haul transmissions have gradually entered systems covering shorter distances below 100  ...  onto the optical carrier, where both single optical carrier or multiple optical carriers via WDM can be used.  ... 
doi:10.3390/photonics9010030 fatcat:n436p2z4vvbhlltafonxxnai5y

Software defined elastic optical networking in temporal, spectral, and spatial domains

S. J. Ben Yoo, Lei Liu, Roberto Proietti, Ryan P. Scott
2014 Photonic network communications  
OpenFlow-based 3D-EON testbed at UC Davis includes optical supervisory channel with optical performance monitoring for software-defined networking with an adaptive observe-analyze-act cycle.  ...  Routing, spectral, spatial mode, and modulation format assignment with fragmentation awareness as well as hitless defragmentation for high capacity, high quality of service, and resource-efficient networking  ...  Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s)  ... 
doi:10.1007/s11107-014-0448-0 fatcat:na4peuznubdb5clbxhxawai6ym

Real-time Digital Signal Processing for Software-defined Optical Transmitters and Receivers

Rene Marcel Schmogrow
2014
We vary the modulation of the SCs using quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) with 16 (16QAM) and 64 states (64QAM).  ...  Since we used the filters for an M-ary QAM Tx, we realized the IR generators of Fig. 4 .16 with LUTs for avoiding multiplications.  ...  Optical signals on a single optical carrier with data rates of up to 336 Gbit/s were shown.  ... 
doi:10.5445/ksp/1000042847 fatcat:juzwyq5mazhxtlan73n756h4lq

A High Performance FPGA Implementation of a Feed-Forward Carrier Phase Recovery Algorithm for 16-QAM Real-Time Coherent Receivers [article]

Ioannis-Vatistas Kostalampros, National Technological University Of Athens, National Technological University Of Athens
2017
The current thesis aims at implementing a high efficiency, feed-forward Carrier Phase Recovery algorithm on an FPGA platform, targeted at 16-QAM real-time Digital Coherent Receivers.  ...  While the bandwidth efficiency increases a lot with higher constellations usage (16-QAM, 64-QAM, 256-QAM etc) the noise tolerance of the link becomes even more critical and Carrier Recovery requires state-of-the-art  ...  An example is shown in the figure 4.2 below.  ... 
doi:10.26240/heal.ntua.14619 fatcat:pkeyyhjctvcnndcievuxtyroa4

Single-Laser Multi-Terabit/s Systems

David Hillerkuss
2013
So a combination of amplitude and phase modulation has become the most common scheme. Usually, quadrature amplitude modulation (QAM) is used when modulating phase and amplitude of an optical carrier.  ...  The effect of the nonlinearity of the modulator on a 16 QAM signal is displayed in Fig. A.24 .  ...  Second, an optical comb source producing 325 equally spaced, high-quality carriers enables spectrally efficient multiplexing schemes.  ... 
doi:10.5445/ksp/1000033390 fatcat:5ivizznxjrfutj5egzqf7v7p5u

Performance improvement of optical high-speed short-range communication systems utilizing bandwidth extension and advanced digital signal processing

Christoph Kottke, Technische Universität Berlin, Technische Universität Berlin, Klaus Petermann
2019
The first one utilizes a bandwidth extension concept based on analog mixing to increase the signal bandwidth beyond the limits of today's signal generators.  ...  use of higher order modulation formats.  ...  Fig. 3 . 3 30 shows the measured BERs for 40 GBd of 4 and 8-PAM in the lower sub-band and 16 GBd of 8, 16 and 32-QAM in the upper sub-band for different lengths of optical fiber.  ... 
doi:10.14279/depositonce-9107 fatcat:mane6ehjvrcyhfdw4vahxqxiii

Silicon-organic hybrid devices for high-speed electro-optic signal processing

Matthias Lauermann
2018
Among the various elements of the silicon photonics platform, electro-optic IQ modulators play an important role.  ...  In this book, silicon-organic hybrid (SOH) integration is used to realize electro-optic IQ modulators for complex signal processing.  ...  For the 16 QAM experiment, we estimate an energy consumption of only 19 fJ/bitthe lowest value reported so far for 16QAM signaling at 28 GBd.  ... 
doi:10.5445/ksp/1000080658 fatcat:u3r26iwmevfj7e4gk76vtkqu2m
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