中国激光, 2009, 36 (7): 1852, 网络出版: 2009-07-16
单频光纤激光器的噪声抑制
Noise Suppression of Single Frequency Fiber Laser
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
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。
Abstract
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.
刘奎, 杨荣国, 张海龙, 白云飞, 张俊香, 郜江瑞. 单频光纤激光器的噪声抑制[J]. 中国激光, 2009, 36(7): 1852. Liu Kui, Yang Rongguo, Zhang Hailong, Bai Yunfei, Zhang Junxiang, Gao Jiangrui. Noise Suppression of Single Frequency Fiber Laser[J]. Chinese Journal of Lasers, 2009, 36(7): 1852.