S. Lee et al., Adjustable compensation of polarization mode dispersion using a high-birefringence nonlinearly chirped fiber Bragg grating, IEEE PHOTON, 11(10), 1999, pp. 1277-1279
We demonstrate an adjustable polarization-mode-dispersion (PMD) compensator
. The device uses a nonlinearity chirped fiber Bragg grating written into a
high-birefringence photosensitive fiber. By mechanically stretching the gr
ating, the device generates a time delay between different polarizations th
at is adjustable from 100 to 320 ps and is tunable over 2.3 nm. We demonstr
ate tunable PMD compensation of a 10-Gb/s signal that has an initial delay
between the two polarization states of 127 or 302 ps.