Title :
One Degree of Freedom Fiber Ring Depolarizer
Author :
Wang, Chunhua ; Li, Li ; Peng, Lei
Author_Institution :
Lab. of Specialty Opt. & Opt. Access Network, Shanghai Univ., Shanghai, China
fDate :
6/15/2010 12:00:00 AM
Abstract :
A single fiber ring depolarizer with one degree of freedom of adjustment is proposed by setting the bend-induced birefringence in the fiber ring as a half-wave plate and choosing proper coupling coefficient of the coupler. Depolarization can be realized by just rotating the whole set of the fiber ring. A 12-m fiber ring depolarizer is demonstrated to depolarize a Fabry-Pe??rot laser with 10-m coherent length, and a degree of polarization of 1.5% is obtained.
Keywords :
birefringence; optical fibre couplers; optical fibre polarisation; Fabry-Perot laser; bend-induced birefringence; coherent length; coupling coefficient; degree of freedom; depolarization; half-wave plate; optical coupler; single fiber ring depolarizer; size 12 m; Depolarizer; fiber ring; state of polarization (SOP);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2046152
