激光二极管端面抽运Tm,Ho：YLF激光器双稳特性研究  

Optical bistability performance of laser-diode end-pumped Tm,Ho:YLF laser

作　　者：张新陆 王月珠[2] 李立[1] 鞠有伦[2] 

机构地区：[1]哈尔滨工程大学理学院,哈尔滨150001 [2]哈尔滨工业大学光电技术研究所可调谐激光国家重点实验室,哈尔滨150001

出　　处：《物理学报》2008年第3期1699-1703,共5页Acta Physica Sinica

基　　金：高等学校博士学科点专项基金(批准号:20070217014)资助的课题~~

摘　　要：报道了波长为792nm激光二极管端面抽运Tm,Ho:YLF连续激光器的双稳输出特性.激光晶体温度为283K时,双稳区的宽度为100mW,跃变点输出功率的跃变量为15mW.实验上还研究了晶体温度对2μm激光双稳特性的影响,当晶体温度从283K升高到298K时,双稳区的宽度由100mW减小到60mW,跃变点输出功率的跃变量由15mW下降到6mW.通过分析可知,Tm,Ho:YLF连续激光器的双稳输出是由能量转递上转换、激发态吸收以及激光下能级对2μm输出激光再吸收共同作用的结果.The bistable output of a 792 nm laser-diode end pumped continuous wave Tm, Ho： YLF laser is reported for the first time. When the temperature of the Tm, Ho： YLF crystal is 283 K, the width of bistable section is 100 mW, and the jump power at the turning point is 15 mW. The influence of crystal temperature on the bistable performance of 2 μm laser is studied in the experiment. The width of bistable section was reduced from 100 mW to 60 mW and the jump power at the turning point reduced from 15mW to 6 mW respectively, when the temperature of laser crystal is increased from 283 K to 298 K. The bistable output in the continuous wave Tm, Ho： YLF laser comes from the co-effect of the energy transfer upconversion, excited state absoption and lower level reabsorption of 2μm laser light.

关 键 词：端面抽运 Tm Ho:YLF晶体 连续输出 光学双稳 激光二极管 

分 类 号：TN248[电子电信—物理电子学]