分布反馈光纤激光器自放大特性实验研究  

Experimental study on the self-amplified distributed feedback fiber lasers

作　　者：宋志强[1] 祁海峰[1] 郭健[1] 王昌[1] 彭刚定[2] 

机构地区：[1]山东省科学院激光研究所,山东省光纤传感技术重点实验室,山东济南250014 [2]新南威尔士大学电子工程与通信学院

出　　处：《光电子．激光》2013年第11期2092-2095,共4页Journal of Optoelectronics·Laser

基　　金：山东省自然基金(ZR2010FM039);山东省自主创新成果转化重大专项(2011ZHZX1A0107);山东省中青年科学家科研奖励基金(BS2010DX030)资助项目

摘　　要：通过相位掩膜板移动法,制作了非对称相移结构分布反馈光纤激光器(DFB-FL)。为了获得更高的激光功率,利用同样长度的掺铒光纤(EDF),分别采用同向泵浦和反向泵浦结构方式进行了窄线宽激光信号的自放大实验,结果表明,两种自放大结构的DFB-FL均可充分利用泵浦光功率,在保证激光线宽展宽有限的前提下,实现了激光信号至少23dB的功率放大。同时,实验结果对比说明,同向泵浦放大结构更有利于保持原激光信号的噪声特性。这为较大输出功率的DFBFL提供了一种简单可行的方案。An asymmetrical phase-shifted distributed feedback fiber laser was ma de by phase mask plate moving method.In order to get higher power of laser output,the experiment of laser sign al self-amplifing was conducted respectively by forward pump structure and back ward pump structure using the same length erbium-doped fiber. The experiment results show that distributed feedback fiber lasers of the two se lf-amplifying structures can make full use of the pump laser power under the pr emise of the laser line width not broadening 23dB of laser signal power amplification is achieved at least.In contrast,forward pump amplification structure is more conducive to maintain the original laser signal noise characteristics.This paper provides a simple and feasible scheme for the distributed feedback fiber laser with larger output power.

关 键 词：激光技术 光纤激光器 分布反馈光纤激光器(DFB-FL) 自放大 

分 类 号：TN242[电子电信—物理电子学]