摘要
针对分布反馈式光纤激光器(DFB-FL)线宽特性进行了深入研究.通过理论推导和实验验证,分析了自脉动、相移光栅、激射窗口宽度以及外界环境扰动等因素对DFB-FL线宽的展宽作用.进一步提出了压缩DFB-FL线宽的有效方法和途径,给出了自注入锁模方式下对DFB-FL线宽压缩的对比实验结果,将DFB-FL的线宽从35 kHz压缩到了10 kHz.
The linewidth characteristics of distributed feedback fiber laser （DFB-FL） is fully explored in this paper. The linewidth broadening effect of DFB-FL induced by self-pulsation, phase-shifted grating, especially lasing window, external disturbance, etc. are extensivly investigated in the paper based on the theoretical derivation and experiment. An effective linewidth compression method is proposed, and a self-injection system of DFB-FL comes up to reduce its linewidth from 35 kHz to less than 10 kHz.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第8期200-205,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:60977058)
山东省杰出青年科学基金(批准号:JQ200819)资助的课题~~
关键词
分布反馈式光纤激光器
自注入锁模
线宽特性
distributed feedback fiber laser, self-injection mode-locking, linewidth characteristics
