中国激光, 2013, 40 (12): 1202003, 网络出版: 2013-12-05
低重频高峰值功率亚纳秒掺镱光纤激光器
Low-Repetition High-Peak-Power Sub-Nanosecond Pulsed Yb-Doped Fiber Laser
激光器 光纤激光器 光纤放大器 高脉冲能量 亚纳秒脉冲 lasers fiber laser fiber amplifier high pulse-energy sub-nanosecond pulse
摘要
介绍了重频为400 KHz,脉冲宽度为960 ps输出的高脉冲能量的亚纳秒掺镱光纤激光器。该激光器采用全光纤主振荡功率放大(MOPA)结构,种子源使用的是实验室自制的频率为400 kHz,脉宽为940 ps,输出功率为100 mW的掺镱光纤激光器,通过6个10 W多模激光抽运将种子光放大到8.9 W平均功率输出,相应的单脉冲能量达到22 μJ,峰值功率达到23 kW,输出激光中心波长为1064.5 nm。该亚纳秒、高能量脉冲激光器可广泛用于材料加工,激光测距,激光雷达等领域。
Abstract
In this article, we report an efficient sub-nanosecond pulses generation in Yb-doped fiber laser with 400 kHz repetition rate and 960 ps pulse width, which adopts master oscillator fiber power amplifier (MOPA) configuration, extracting 8.9 W average output power up to 23 kW with central wavelength of 1064.5 nm. The seed laser with 100 mW average output power is amplified to 8.9 W by one-stage Yb-doped double-cladding fiber amplifier, pumped by 6 multimode laser diodes with maximum output power of 10 W. This kind of high-energy sub-nanosecond Yb-doped fiber laser can be widely used in material processing, laser radar, laser ranging and other fields.
师红星, 刘江, 孙若愚, 谭方舟, 王璞. 低重频高峰值功率亚纳秒掺镱光纤激光器[J]. 中国激光, 2013, 40(12): 1202003. Shi Hongxing, Liu Jiang, Sun Ruoyu, Tan Fangzhou, Wang Pu. Low-Repetition High-Peak-Power Sub-Nanosecond Pulsed Yb-Doped Fiber Laser[J]. Chinese Journal of Lasers, 2013, 40(12): 1202003.