摘要
对单频光纤激光系统的输出噪声进行了测量和研究,利用前置光电负反馈方法对光纤激光器的强度噪声进行了抑制,调节反馈增益和延迟时间,可以在不同的边频处接近散离噪声极限,在分析频率6.0 MHz处抑制程度达到22 dB。
The noise characteristic of the fiber laser with single frequency operation is experimentally investigated. The prepositive optoelectronic feed-forward is used to suppress the intensity noise of the fiber laser. Selecting the best delay time and feed-forward gain, the intensity noise can be suppressed near to shot noise limit at any sideband frequency. The maximum noise reduction of 22 dB is obtained at 6.0 MHz.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第7期1852-1856,共5页
Chinese Journal of Lasers
基金
国家自然科学基金(10774096
60708010)资助项目
关键词
量子光学
单频光纤激光器
强度噪声
光电前馈
噪声抑制
quantum optics
single frequency
fiber laser
intensity noise
opto-electronic feed-forward
noise suppression
