摘要
实验研究了单频单模保偏掺Yb光纤放大器中的受激布里渊散射(SBS)效应。采用前向抽运的两级级联掺Yb光纤放大器,研究了保偏光纤放大器中的受激布里渊散射的光谱变化特性。理论计算的单模光纤的布里渊频移和SBS阈值与实验测试的结果进行了比较。在光纤放大器前后两端观察到多级次的斯托克斯(Stokes)谱线和多级的反斯托克斯(anti-Stokes)谱线,这是由级联受激布里渊散射和四波混频过程产生的。
Experimental results for the stimulated Brillouin scattering （SBS） in the single-frequency, single-mode, linearly polarized ytterbium-doped fiber amplifier are reported. The fiber amplifier configuration comprises of twostage master oscillator power amplifier with co-propagating signal and pump light. The evolution of SBS spectra is investigated in the experiments. Multiorder Stokes and anti-Stokes scattering can be observed in the forward and backward directions of the fiber amplifier, which generate through cascaded SBS and four-wave mixing process.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2011年第5期9-13,共5页
Chinese Journal of Lasers
基金
国家自然科学基金(60907045)
国家863计划(2008AA03Z405)资助课题
关键词
非线性光学
单频
线偏振
主振荡多级放大器
受激布里渊散射
四波混频
nonlinear optics
single frequency
linearly polarized
master oscillator multi-stage power amplifiers
stimulated Brillouin scattering
four-wave mixing
