Open AccessOutput characteristics of wavelength tunable fiber lasers based on sampled Bragg gratings
Author(s) -
Yan Liu,
Wang Lei-Shi,
Peilin Tao,
Feng Su-Chun,
Guolu Yin,
Wei Ren,
Tan Zhang,
Shuisheng Jian
Publication year - 2011
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.60.024207
Subject(s) - optics , materials science , fiber bragg grating , distributed bragg reflector , laser , wavelength , phosfos , fiber laser , distributed bragg reflector laser , reflection (computer programming) , optoelectronics , tunable laser , reflector (photography) , optical fiber , dispersion shifted fiber , fiber optic sensor , physics , light source , computer science , programming language
A simulation model of the fiber DBR (distributed Bragg reflector) laser with two sampled Bragg gratings (SBGs) as reflectors is established, with which the characteristics of the laser are analyzed in detail. The analysis mainly focuses on the change of the laser output characteristics with the wavelength and reflectivity of the front and back sampled fiber gratings. Because of the multi-channel reflection of SBGs, the side mode of such laser is always very obvious. The method for improving the SMSR(side mode suppression ratio) is suggested. And the wavelength tuning mechanism is also studied. Experiment has been carried out to confirm the analysis.