Enhanced PMD monitoring with frequency-resolved SOP rotation by self-phase modulation

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.

[1]  Dennis Derickson,et al.  Fiber optic test and measurement , 1998 .

[2]  Alan E. Willner,et al.  PMD monitoring in WDM systems for NRZ data using a chromatic-dispersion-regenerated clock , 2002, Optical Fiber Communication Conference and Exhibit.

[3]  L. Moller,et al.  Method for PMD vector monitoring in picosecond pulse transmission systems , 2001 .

[4]  Ernst Brinkmeyer,et al.  Feedforward approach for automatic PMD-compensation at 80 Gbit/s over 45 km installed single mode fiber , 2001, Proceedings 27th European Conference on Optical Communication (Cat. No.01TH8551).

[5]  G. Bosco,et al.  Pulsewidth distortion monitoring in a 40-Gb/s optical system affected by PMD , 2002, IEEE Photonics Technology Letters.

[6]  Govind P. Agrawal,et al.  Nonlinear Fiber Optics , 1989 .

[7]  F. Buchali,et al.  Fast eye monitor for 10 Gbit/s and its application for optical PMD compensation , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).

[8]  A. E. Willner,et al.  Wide-dynamic-range DGD monitoring by partial optical signal spectrum DOP measurement , 2002, Optical Fiber Communication Conference and Exhibit.

[9]  A. Willner.  Optical Fiber Telecommunications IIIB , 1997 .