Open AccessStudies on the dispersion compensation of fiber Bragg grating in high-speed opti cal communication system
Author(s) -
Li Pei,
Tigang Ning,
Tangjun Li,
Dong Xiao-Wei,
Shuisheng Jian
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.1630
Subject(s) - fiber bragg grating , materials science , polarization mode dispersion , optics , bandwidth (computing) , ripple , dispersion (optics) , single mode optical fiber , dispersion shifted fiber , multi mode optical fiber , optical fiber , optoelectronics , fiber optic sensor , physics , wavelength , power (physics) , telecommunications , computer science , quantum mechanics
By optimizing the fabrication process of the chirped optical fiber Bragg grating (FBG), some key problems of FBG are solved, such as the temperature stabili ty, time delay ripple coefficient, bandwidth, compensation of polarization mod e dispersion (PMD), and so on. The FBG we fabricated can attain the temperature coefficient less than 00005 nm/℃, its bandwidth is bigger than 14nm, tim e delay ripple is less than 50 ps, and the dispersion is higher than -1000ps/n m. The average PMD of the FBG dispersion compensator is measured by the Jones ma trix eigenvalue method, and is compensated. Its PMD is improved from 91406 ps to 01521 ps. With dispersion compensation by two wide_band FBGs we fabricated, we have implemented a 40 Gb/s 122 km conventional single_mode optical fiber (G6 52) systems, with a power penalty being only 14 dB.