Title :
Enhanced PMD monitoring with frequency-resolved SOP rotation by self-phase modulation
Author :
Lu, Guo-Wei ; Xie, Chongjin ; Ku, Yuen-Ching ; Chen, Lian-Kuan ; Chan, Chun-Kit
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
A self-phase modulation (SPM)-assisted polarization-mode-dispersion (PMD) monitoring scheme based on frequency-resolved state-of-polarization rotation is proposed. The use of broadened signal spectrum induced by SPM not only relaxes the filter requirement and reduces the computational complexity, but also improves the estimation accuracy, and extends the monitoring range of the pulsewidth. In this letter, PMD monitoring using this enhanced scheme was studied and experimentally demonstrated with much reduced estimation error, to around 2%, for a 10-Gb/s optical system with 28-ps full-width at half-maximum pulsewidth. In addition, the operation range for the proposed scheme was characterized.
Keywords :
monitoring; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical fibre testing; optical rotation; self-phase modulation; 10 Gbit/s; PMD monitoring; broadened signal spectrum; estimation error reduction; frequency-resolved SOP rotation; polarisation mode dispersion; self-phase modulation; state-of-polarization rotation; Computational complexity; Estimation error; Frequency; Monitoring; Nonlinear optics; Optical filters; Optical pulses; Polarization; Scanning probe microscopy; Space vector pulse width modulation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.831564
