物理学报Issue(4)：233-241,9.DOI:10.7498/aps.62.044215
保偏光纤中在不同频率区域拉曼效应和参量放大增益谱
Raman effect on parametric amplification gain spectra of different frequency propagation regimes in polarization maintaining fibers∗
摘要
Abstract
The expression of gain is derived from nonlinear Schr¨odinger equation with consideration of raman effect when two laser pulses with different wavelengths are emitted into birefringence fiber along two polarization axes. The gain characteristic input laser pulses of different frequencies are revealed by comparing the laser pulses of identical frequency. The result show that the gain spectra will apparently differ when input laser pulses have different frequencies in normal dispersion regime and anomalous dispersion regime. The intensities of outboard gain peak about stokes part and anti-stokes part increase and frequency deviates from central frequency as group velocity mismatch increases. Therefore, the THz pulse can be extracted. The gain spectrum will be apparently different from that with no Raman effect taken into account, when the two polarization modes, are in different dispersion regimes. The symmetry of gain spectrum will be damaged. The intensity of gain peak of stokes is apparently stronger than the peak of anti-stoke.关键词
不同频率区域/保偏光纤/拉曼效应/参量放大Key words
different frequency propagation regimes/polarization maintaining fibers/Raman effect/parametric amplification引用本文复制引用
柴宏宇,贾维国,韩凤,门克内木乐,杨军,张俊萍..保偏光纤中在不同频率区域拉曼效应和参量放大增益谱[J].物理学报,2013,(4):233-241,9.基金项目
国家自然科学基金(批准号:61178070)和中国科学院大气成分与光学重点实验室开放基金(批准号:JJ-10-08)资助的课题 （批准号:61178070）
