Abstract

As optical networks continue to grow towards high capacity and high flexibility, new transmission technologies are being introduced. In order to maintain the quality of signal and control over network in the transparent domains, optical performance monitoring (OPM) systems are becoming a necessity. Phase modulation formats emerge as the solution of choice in transparent domains because of their sensitivity, spectral efficiency, and resilience to optical impairments. In this paper, we demonstrate a flexible OPM method for phase-modulated signals using asynchronous amplitude histogram analysis. We show numerically and experimentally the monitoring of optical signal-to-noise ratio (OSNR), chromatic dispersion (CD), and polarization-mode dispersion (PMD) for differential phase-shift keying (DPSK) and differential quadrature phase-shift keying (DQPSK) signals. The OSNR can be measured within range of 20–35 dB and accumulated chromatic dispersion between $-$600 and $+$600 ps/nm. The asynchronous amplitude histogram monitoring method is proved to be a precise and versatile monitoring tool for high-capacity optical networks.

© 2008 IEEE

Experimental demonstration of optical performance monitoring for RZ-DPSK signals using delay-tap sampling method

Bartłomiej Kozicki, Akihiro Maruta, and Ken-ichi Kitayama
Opt. Express 16(6) 3566-3576 (2008)

Optical performance monitoring technique using asynchronous amplitude and phase histograms

H. Y. Choi, Y. Takushima, and Y. C. Chung
Opt. Express 17(26) 23953-23958 (2009)

Optical performance monitoring technique using software-based synchronous amplitude histograms

H. G. Choi, J. H. Chang, Hoon Kim, and Y. C. Chung
Opt. Express 22(20) 24024-24033 (2014)

Chromatic dispersion monitoring for multiple modulation formats and data rates using sideband optical filtering and asynchronous amplitude sampling technique

F. N. Khan, Alan Pak Tao Lau, Chao Lu, and P. K. A. Wai
Opt. Express 19(2) 1007-1015 (2011)

Optical performance monitoring using the novel parametric asynchronous eye diagram

Vìtor Ribeiro, Liliana Costa, Mário Lima, and António L. J. Teixeira
Opt. Express 20(9) 9851-9861 (2012)