Abstract

In long haul optical fiber communication networks, whichcan span thousands of kilometers, bandwidth is at a premium due to the relatively low availability of optical fibers when compared with network traffic demands. Therefore, these networks require the highest performance in the physical layer, with transceivers that are capable of extracting all the available capacity from each optical fiber. Digital coherent transmitters and receivers, which enhance optical transmission systems by using digital signal processing, are essential for achieving this goal. This tutorial discusses the digital signal processing techniques that are used in the design of high performance coherent modems to compensate for adverse channel effects such as fiber impairments and optoelectronic device non-idealities.

On the performance of multichannel digital backpropagation in high-capacity long-haul optical transmission

Gabriele Liga, Tianhua Xu, Alex Alvarado, Robert I. Killey, and Polina Bayvel
Opt. Express 22(24) 30053-30062 (2014)

Performance comparison of MSK and QPSK optical long haul DWDM transmission with coherent detection

A. Hachmeister, M. Nölle, L. Molle, R. Freund, and M. Rohde
Opt. Express 20(4) 3877-3882 (2012)

Power-Efficiency Considerations for Adaptive Long-Haul Optical Transceivers

Behnam Sedighi, Hamid Khodakarami, Bipin S. G. Pillai, and William Shieh
J. Opt. Commun. Netw. 6(12) 1093-1103 (2014)

Empirical modeling and simulation of phase noise in long-haul coherent optical transmission systems

Maurizio Magarini, Arnaldo Spalvieri, Francesco Vacondio, Marco Bertolini, Marianna Pepe, and Giancarlo Gavioli
Opt. Express 19(23) 22455-22461 (2011)

Evaluation of the robustness of polarization attraction for 10.7-GBaud NRZ-BPSK after long-haul 100-GHz DWDM transmission

A. DeLong, W. Astar, B. M. Cannon, and G. M. Carter
Opt. Express 26(13) 16639-16669 (2018)