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Fiber-nonlinearity equalization by maximum-likelihood-sequence estimation (MLSE) in digital coherent receivers

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5 Author(s)
Md. Khairuzzaman ; Department of Electronic Engineering, the University of Tokyo, Japan ; Chao Zhang ; Koji Igarashi ; Kazuhiro Katoh
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Maximum-likelihood-sequence estimation (MLSE) is successfully introduced into the digital coherent receiver together with FIR filters. We can compensate for both linear and nonlinear impairments of 20-Gbit/s QPSK signals transmitted through a 200-km-long standard single-mode-fiber.

Published in:

2009 14th OptoElectronics and Communications Conference

Date of Conference:

13-17 July 2009