Feedforward Carrier Recovery for Coherent Optical Communications

By Ezra Ip, Joseph M. Kahn. Journal of Lightwave Technology, 2007

364 citations recorded by the source corpus.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/7bd05f42cc7d78a9d7736ee5b244f8fa5fa814e8

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

High-Spectral-Efficiency Optical Modulation Formats (2012, background): “For small ( -dB) penalties and at typical pre-FEC BERs between and , QPSK tolerates values of on the order of , 16-QAM on the order of , and 64-QAM on the order of [67], [77], [79].”
Blind Equalization and Carrier Phase Recovery in a 16-QAM Optical Coherent System (2009, methodology): “In [ 12 ], CPE for was achieved with a decision-directed soft-decision phase estimator employed.”
Laser Linewidth Tolerance for 16-QAM Coherent Optical Systems Using QPSK Partitioning (2010, neutral): “Various PE algorithms have recently been proposed [2]–[8] and verified either through simulation or offline processing for 16-ary quadrature amplitude modulation (16-QAM) which is one of the most promising modulation formats for next-generation 100 Gb/s.”
Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation (2008, neutral): “Digital equalization of linear impairments using a fractionally spaced finite impulse response (FIR) filter was studied in [1]–[3], while digital feedforward carrier recovery to overcome laser phase noise was studied in [4]–[7].”
Recent advances in coherent optical communication (2009, background): “Another approach is either data-assisted or decision-directed carrier-phase estimation [ 22 ].”
DSP for Coherent Single-Carrier Receivers (2009, background): “In AWGN systems, can be optimized depending on the signal-to-noise ratio [33].”
Hardware-Efficient Coherent Digital Receiver Concept With Feedforward Carrier Recovery for $M$ -QAM Constellations (2009, methodology): “If only preceding symbols are used as inputs to the FIR filter, a feedback delay of becomes theoretically possible [10].”
End-to-End Energy Modeling and Analysis of Long-Haul Coherent Transmission Systems (2014, background): “To retrieve modulated phase information, a coherent Rx needs to compensate for the carrier phase noise introduced by the LO used to beat with the received signals as well as due to ASE [79], [82]–[85], [88], [89].”
Phase Estimation Methods for Optical Coherent Detection Using Digital Signal Processing (2009, background): “Ip and Kahn also identified the Wiener filter as the optimal phase estimate, and evaluated it in a different structure for QPSK and QAM formats [17].”
Fiber Impairment Compensation Using Coherent Detection and Digital Signal Processing (2010, methodology): “14(b), which is the feedforward carrier recovery (FFCR) structure studied in [34].”