Open AccessLong-distance optical fiber transmission system based on hybrid Raman amplification
Author(s) -
Li Li,
Xin-Hong Jia,
Zengling Ran,
Tianhu Zhang,
Yunjiang Rao
Publication year - 2010
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.59.4682
Subject(s) - raman amplification , fiber bragg grating , optics , materials science , amplified spontaneous emission , signal (programming language) , raman spectroscopy , transmission (telecommunications) , fiber , dispersion shifted fiber , compensation (psychology) , polarization maintaining optical fiber , fiber laser , optical fiber , optoelectronics , raman scattering , laser , fiber optic sensor , physics , telecommunications , computer science , psychology , psychoanalysis , composite material , programming language
A novel modified method for realizing long-distance self-adaptive compensation optical fiber transmission is proposed. Based on the hybrid Raman amplification achieved by combining the original bi-directional Raman pump with a second Raman amplification generated by a fiber laser formed by a fiber Bragg grating pair with high reflectivity, the signal light is amplified effectively and the longest self-adaptive compensation optical fiber transmission distance of 125 km is achieved in experiment for the first time, to the best of our knowledge. In addition, the ON/OFF gain, amplified spontaneous emission noise, noise figure and the signal power distribution characteristics of the system are studied experimentally and theoretically. The experimental results are in good agreement with the theoretical analysis.