中国激光, 2010, 37 (11): 2825, 网络出版: 2010-11-16
重复频率100 kHz, 平均功率2.5 W的皮秒脉冲再生放大器
2.5 W Picosecond Pulse Regenerative Amplifier with 100 kHz Repetition Rate
摘要
报道了采用RTP晶体作为电光晶体、激光二极管(LD)端面抽运Nd:GdVO4晶体的锁模皮秒脉冲再生放大器。利用ABCD矩阵优化激光腔几何参数, 实现最佳皮秒种子模式与再生模式匹配。在抽运功率7.5 W时, 获得了脉宽为12 ps, 峰值功率为2.08×106 W, 重复频率为100 kHz的锁模皮秒激光。光光转换效率达33.3%, 能量增益4.8×103 倍。TEM00模输出, 光束质量因子 M2≤1.2, 长期稳定性均方根值小于3%。
Abstract
The use of RTP crystals as electro-optical crystals, laser diode (LD) end-pumped Nd:GdVO4 crystal pulse mode-locked picosecond regenerative amplifier is reported. Geometric parameters of the laser cavity are optimized to achieve the best mode matching between picosecond seed and regenerative amplifier by ABCD matrix. Laser pulses are provided at pump power 7.5 W with a pulse duration of 12 ps, a peak power of 2.08×106 W, a repetition rate of 100 kHz, optical-optical conversion efficiency of 33.3%, energy gain of 4.8×103 times. And TEM00 mode is achieved with the beam quality factor M2 less than 1.2 and the long-term stability root mean square (RMS) is less than 3%.
麻云凤, 樊仲维, 牛岗, 邱基斯, 赵天卓, 连富强. 重复频率100 kHz, 平均功率2.5 W的皮秒脉冲再生放大器[J]. 中国激光, 2010, 37(11): 2825. 麻云凤, 樊仲维, 牛岗, 邱基斯, 赵天卓, 连富强. 2.5 W Picosecond Pulse Regenerative Amplifier with 100 kHz Repetition Rate[J]. Chinese Journal of Lasers, 2010, 37(11): 2825.