高重复频率大能量单纵模主振荡激光器  

High RepetitionRate High Pulse Energy Single Longitudinal Mode Master Oscillator Laser

作　　者：戴殊韬[1] 李锦辉[1] 史斐[1] 邓晶[1] 吴鸿春[1] 郑晖[1] 翁文[1] 葛燕[1] 黄见洪[1] 林文雄[1] 

机构地区：[1]中国科学院福建物质结构研究所光电材料化学与物理重点实验室,福建福州350002 [2]中国科学院福建物质结构研究所光电材料化学与物理重点实验室,福建福州350002

出　　处：《中国激光》2014年第12期1-5,共5页Chinese Journal of Lasers

摘　　要：研制了一台高重复频率电光调Q单纵模主振荡激光器。利用高速电子电路负反馈控制系统,在激光器谐振腔内引入一个随光强动态变化的损耗,建立了准连续的预激光状态,在此基础上进行电光调Q,加上谐振反射器的纵模选择作用,最终实现了稳定的单纵模输出。激光重复频率为1kHz,脉冲宽度为15ns,最高脉冲能量为2mJ,在30min时间内,单纵模几率达100%。激光器结构紧凑,系统简单可靠,已成功应用于激光振荡-放大系统的振荡器中。A high-repetition-rate electro-optic Q-switched single longitudinal mode laser has been developed. Using a fast electronic circuit negative feedback control system, the laser cavity generates dissipation varying with laser intensity and the quasi-continuous prelase is established, then the Q-switch is turned on based on this prelase. Stable single longitudinal mode laser output is generated with the mode selection of the resonant reflector. The laser has produced pulse with width of 15 ns, maximum pulse energy of 2 mJ at 1 kHz repetition rate, and single longitudinal mode probability of 100% within 30 min. The laser system is compact, simple, reliable and has been used as a master oscillator of master oscillator power-amplifier （MOPA） systems.

关 键 词：激光器 单纵模 谐振反射器 预激光 负反馈 电光调Q 

分 类 号：TN248.1[电子电信—物理电子学]