全固态连续单频可调谐钛宝石激光器腔内损耗及最佳透射率的研究  

Study on Intracavity Losses and Output Coupler Transmission of All-Solid-State Tunable Ti:Sapphire Laser

作　　者：卢华东[1] 苏静[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9期2328-2333,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);山西省青年科技研究基金(2009021004);山西大学博士启动基金资助课题

摘　　要：从理论和实验分析讨论了全固态连续单频可调谐钛宝石激光器的输出功率与最佳耦合透射率以及腔内损耗之间的关系,并根据实验数据确定的腔内损耗和最佳透射率,设计和优化激光器,使其输出功率和稳定性都得到较大提高。当抽运功率为8 W,输出耦合镜的透射率为3.1%时,可调谐钛宝石激光器的输出功率达到2 W(792 nm),斜率效率为37.6%,1h内的功率稳定性优于±0.5%,波长调谐范围720～820 nm,激光器被锁定后,10 s内其频率稳定性优于±134 kHz,15 min内的频率稳定性优于±3.3 MHz。The dependences of all-solid-state tunable Ti：sapphire laser output power on the resonator intracavity losses and output coupler transmission were analyzed theoretically and tested in experiment.According to the experimentally tested intracavity losses and transmission,the design of the laser was optimized and higher and more stable output powers were obtained.With the pump power of 8 W,the output power of 2 W at the wavelength of 792 nm with slope efficiency of 37.6% was obtained.The intensity fluctuation of the output laser was less than ±0.5% during 1 h,and the tunable range was from 720 to 820 nm.When the laser was locked,the frequency stability was better than ±134 kHz over 10 s and ±3.3 MHz in 15 min in the totally tunable range from 720 to 820 nm.

关 键 词：激光器 钛宝石激光器 腔内损耗 最佳透射率 

分 类 号：TN248.1[电子电信—物理电子学]