Open AccessTunable PMD compensator based on highbirefringence
Author(s) -
Muguang Wang,
Tangjun Li,
Shuisheng Jian
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.002354
Subject(s) - differential group delay , optics , cantilever , fiber bragg grating , polarization mode dispersion , birefringence , materials science , grating , signal (programming language) , wavelength , optical fiber , physics , computer science , composite material , programming language
The simple structure of a tunable polarization mode dispersion (PMD) compensator based on a cantilever beam and a high-birefringence linearly chirped fiber Bragg grating is proposed. A cantilever structure is used to introduce a linear strain gradient on the grating, and we can tune the compensated differential group delay (DGD) at a fixed signal wavelength just by changing the displacement at the free end of the beam. Based on numerical simulations, the performance of the cantilever structure as a PMD compensator is assessed for 10-Gbits/s nonreturn-to-zero transmission systems with a large DGD. With this compensator, a significant improvement of system performance can be achieved in the eye pattern of a received signal.