中国激光, 2010, 37 (3): 622, 网络出版: 2010-03-11
Er/Yb共掺双包层全光纤激光器的实验研究
Experimental Study on Er/Yb Co-Doped Double-Clad All Fiber Laser
光纤激光器 被动锁模 非线性偏振旋转 双包层光纤 环形腔 fiber laser passive mode-locked nonlinear polarization rotation double-clad fiber ring cavity
摘要
报道了Er3+/Yb3+共掺双包层光纤作为增益介质的全光纤环形腔激光器。用性能稳定,中心波长为976 nm的高功率半导体激光器作为抽运光源,利用光纤的非线性偏振旋转效应产生可饱和吸收体的锁模机制,通过调整抽运功率和偏振控制器的状态,实现了被动调Q,调Q锁模和连续锁模的运转状态,其中调Q重复频率7.583-32.86 kHz,连续锁模重复频率为8.843 MHz。实验还观察到各种运转状态的光谱都为带状光谱,对这种现象进行了简单的分析。
Abstract
An all fiber ring laser with a small segment of Er3+/Yb3+co-doped double-clad fiber as gain medium,pumped by a stable 976 nm high power laser diode,is experimentally demonstrated. Using mode-locked mechanism by nonlinear polarization rotation technique,adjusting the polarization controllers orientations and pump,the stable operations of passive Q-switched,Q-switched-mode-locked and continual mode-locked were obtained experimentally. The pulse repetition rate of Q-switched is from 7.583 kHz to 32.86 kHz and the pulse repetition rate of continual mode-locked is 8.843 MHz.We also observed ribbon spectrum and analyzed the result simply.
任芳, 向望华, 祖鹏, 白扬博, 李楠, 伍成强, 师晓宙, 张贵忠. Er/Yb共掺双包层全光纤激光器的实验研究[J]. 中国激光, 2010, 37(3): 622. Ren Fang, Xiang Wanghua, Zu Peng, Bai Yangbo, Li Nan, Wu Chengqiang, Shi Xiaozhou, Zhang Guizhong. Experimental Study on Er/Yb Co-Doped Double-Clad All Fiber Laser[J]. Chinese Journal of Lasers, 2010, 37(3): 622.
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