基于SESAM的被动调Q光纤光栅掺铒光纤激光器  

SESAM-based passively Q-switched Bragg fiber grating Er-doped fiber lasers

作　　者：陈聪[1] 王蒙[1] 陈海燕[1] 

机构地区：[1]长江大学物理与光电工程学院,湖北荆州434023

出　　处：《光通信研究》2014年第6期59-61,共3页Study on Optical Communications

基　　金：湖北省自然科学基金资助项目(2008CDB317)

摘　　要：提出并研究了一种线性腔结构的基于SESAM(半导体可饱和吸收镜)的被动调Q光纤光栅掺铒光纤激光器,该激光器无需采用偏振控制器控制激光偏振态,简化了调Q激光器的结构。该激光器的中心波长为1 549.975nm,阈值功率为143mW,斜效率为1.2%。当泵浦功率从149mW增加到180mW时,脉冲重复频率从5.431kHz增加到9.778kHz。当泵浦功率为155mW时,激光脉冲的能量为5.6nJ,重复频率为6.538kHz,脉冲宽度为40μs。This paper proposes and studies a linear-cavity-structured passively Q-switched Bragg fiber grating Er-doped fiber la-ser using a Semiconductor Saturable Absorber Mirror （SESAM）.This laser controls the polarization state of laser without the need to use a polarization controller,thus simplifying its structure.Its central wavelength is 1 549.975 nm,threshold power 143 mW and slope efficiency 1.2%.When the pump power is increased from 149 mW to 180 mW,the pulse repetition frequen-cy obtained can be increased from 5.431 kHz to 9.778 kHz.When the pump power is 155 mW,the fiber pulse energy is 5.6 nJ and the pulse width is 40μs with a repetition frequency of 6.538 kHz.

关 键 词：光纤激光器 被动调Q 半导体可饱和吸收镜 布拉格光纤光栅 

分 类 号：TN248.1[电子电信—物理电子学]