紧凑稳定的可调谐钛宝石激光器  

Compact,Stable,Tunable Ti∶Sapphire Laser

作　　者：卢华东[1] 苏静[1] 李凤琴[1] 王文哲[1] 陈友桂[1] 彭堃墀[1] 

机构地区：[1]山西大学光电研究所量子光学与光量子器件国家重点实验室,山西太原030006

出　　处：《中国激光》2010年第5期1166-1171,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金创新研究群体科学基金(60821004);山西大学博士启动基金资助课题

摘　　要：通过对钛宝石激光器谐振腔的像散补偿、稳区、模式匹配和调谐元件设计等问题的分析,设计了短腔长、稳定性好的连续单频可调谐钛宝石激光器。利用自行研制的4 W连续单频绿光激光器作为抽运源,在波长为780 nm处获得了670 mW的连续功率输出,其长期功率稳定性优于±0.4%,输出激光的光束质量因子M2〈1.1。利用自行设计的锁相环路和电子伺服系统（PI电路）对激光器进行锁定,锁定后在整个波长调谐范围（750-810 nm）,钛宝石激光器10 s内的频率稳定性均优于±188 kHz,15 min内的频率稳定性优于±3.28 MHz。By implementing astigmatism compensation of the laser resonator,selecting stable operation conditions as well as optimizing the mode match between light fields and tuning elements,we design and build a stable single-frequency continuous-wave（CW） all-solid-state Ti∶sapphire laser with short cavity length.The pump source is a homemade CW single-frequency green laser.Under the pump power of 4 W,the output power of 670 mW at the wavelength of 780 nm is obtained.The intensity fluctuation of the output laser is less than ±0.4% during 1 h,and the beam quality factor M21.1.After the laser resonator is locked on a confocal reference cavity with an electronic servo-system,the frequency stabilities are better than ±188 kHz and ±3.28 MHz over 10 s and 15 min respectively in the totally tunable range from 750 nm to 810 nm.

关 键 词：激光器 钛宝石激光器 稳频 单频 可调谐 

分 类 号：TN248.1[电子电信—物理电子学]