Polarization mode dispersion (PMD) compensation is addressed by decomposition of a fiber's Jones matrix into amplitude and phase responses, which are then compensated for separately. Cubic and higher-order phase compensation substantially reduce the cumulative probability at a given system penalty over first-order PMD compensation, as demonstrated for a 40-Gbit/s non-return-to-zero signal and a fiber PMD with a differential group delay of 20 ps (rms). Single-stage all-pass filters provide tunable compensation that is comparable to that obtained with a variable-delay line, and multistage all-pass filters are well suited for higher-order phase compensation.
© 2000 Optical Society of America
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(260.2030) Physical optics : Dispersion
(350.5030) Other areas of optics : Phase
C. K. Madsen, "Optical all-pass filters for polarization mode dispersion compensation," Opt. Lett. 25, 878-880 (2000)