法布里-珀罗干涉仪
布里渊散射
光学
Q开关
干扰(通信)
材料科学
干涉测量
切换时间
功率(物理)
波长
光纤激光器
调制(音乐)
激光器
物理
光电子学
计算机科学
电信
频道(广播)
声学
量子力学
作者
Senlin Hou,Lei Yang,Nan Zhao,Pïng Chen,Fangfang Zhang,Chen Yang,Feng Lin,Jinyan Li,Lüyun Yang,Jinggang Peng,Haiqing Li,Nengli Dai
出处
期刊:Optics Express
[The Optical Society]
日期:2019-02-14
卷期号:27 (4): 5745-5745
被引量:6
摘要
Q-switching operation based on stimulated Brillouin scattering (SBS) has been developed for decades due to its inexpensive configuration, high pulse energy output, and the potential to be free from wavelength and material limitations. However, unstable and uncontrollable pulse output affected by SBS's stochastic nature hinders its development. In this work, we demonstrated a unique robust SBS-based Q-switched all-fiber laser. Firstly, a numerical model is developed and a general analysis about the robust Q-switching mechanism is presented. Simulation results show that the spectrum modulation effect such as FP interference is efficient for system to realize steady and controllable output. Secondly, we incorporated a Fabry-Perot (FP) interferometer made of two un-contact end faces of fiber connectors into a SBS-based Q-switched system and demonstrated passively robust Q-switching with simpler and cheaper configuration than most reported ones. Under 600 mW pump power, the SNR was measured to be as high as 62.96 dB, which is the highest SNR obtained from SBS-based Q-switched lasers. To our best knowledge, this is the first demonstration of robust SBS-based Q-switching without any external measures.
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