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Terabit+ (192x10 Gb/s) Nyquist Shaped UDWDM Coherent PON with Upstream and Downstream over a 12.8 nm Band

Reis, J.D. ; Shahpari, A. ; Ferreira, RMF ; Ziaie , S. ; Neves, D. ; Lima, M. J. N. ; Teixeira, A.

Journal of Lightwave Technology Vol. 32, Nº 4, pp. - - -, January, 2014.

ISSN (print): 0733-8724
ISSN (online): 0733-8724

Journal Impact Factor: 2,567 (in 2015)

Digital Object Identifier: 10.1109/JLT.2013.2283017

Abstract
In this paper, we numerically and experimentally demonstrate a bi-directional Terabit+ Ultra-Dense Wavelength- Division Multiplexing (UDWDM) coherent Passive Optical network (PON) with Nyquist shaped 16-ary Quadrature Amplitude Modulation (16QAM), offering up to 10 Gb/s service capabilities per user / wavelength in a total spectrum of 12.8 nm over 40 km of Standard Single-Mode Fiber (SSMF). The paper firstly demonstrates the capability of Nyquist pulse shaping to mitigate crosstalk arising from back-reflections and nonlinear effects in UDWDM networks with coherent transceivers. The latter part of the work experimentally investigates the bi-directional transmission in terms of receiver sensitivity and nonlinear tolerance under different network transmission capacity conditions, e.g. number of users and bit rate per users.