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中文摘要：
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。
英文摘要：
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.
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