中国激光, 2012, 39 (6): 0602005, 网络出版: 2012-05-02   

超低重复频率全光纤被动锁模掺铒光纤激光器

All-Fiber Passively Mode-Locked Erbium-Doped Fiber Laser with Ultra-Low Repetition Rate
作者单位
天津大学精密仪器与光电子工程学院, 光电信息技术科学教育部重点实验室, 天津 300072
摘要
报道了一种新颖的全光纤超长环形腔掺铒光纤激光器。该激光器采用非线性偏振旋转(NPR)技术实现自启动锁模,除了NPR元件外,其余全部由单模光纤(SMF)元件组成。通过加入4 km的SMF构成长达4.046 km的环形腔,产生了重复频率为50.92 kHz的稳定锁模脉冲,最大平均输出功率为2.73 mW,对应的单脉冲能量为53.61 nJ。
Abstract
A novel all-fiber ultra-long ring cavity erbium-doped fiber laser is reported. The laser consists of only single mode fiber (SMF) components except the nonlinear polarization rotation (NPR) parts which are utilized to achieve self-starting passively mode-locking. The total length of the ring cavity amounts to 4.046 km, which is achieved by incorporating a 4 km SMF. In experiment, the laser generates stable mode-locked pulses with a 50.92 kHz fundamental repetition rate. The maximum average power of output pulses is 2.73 mW, which corresponds to a single pulse energy of 53.61 nJ.
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陈炯, 贾东方, 杨敬文, 刘彤辉, 王肇颖, 杨天新. 超低重复频率全光纤被动锁模掺铒光纤激光器[J]. 中国激光, 2012, 39(6): 0602005. Chen Jiong, Jia Dongfang, Yang Jingwen, Liu Tonghui, Wang Zhaoying, Yang Tianxin. All-Fiber Passively Mode-Locked Erbium-Doped Fiber Laser with Ultra-Low Repetition Rate[J]. Chinese Journal of Lasers, 2012, 39(6): 0602005.

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