CAJ | 학술논문

提研究了采用激光二极管（LD）侧面抽运Tm ：YAG的激光器的低温输出特性。实验利用液氮杜瓦装置对Tm ：YAG晶体进行冷却，最低温度达到了78．2K。采用平凹腔结构，采用中心波长785nm的激光二极管为抽运源，当LD注入功率为60W ，晶体工作温度为80K时，获得了14．2W的连续激光输出，光-光转换效率为23．67％。实验测试了在相同泵浦功率，不同温度下Tm ：YAG晶体的激光输出功率。
제연구료채용격광이겁관（LD）측면추운Tm ：YAG적격광기적저온수출특성。실험이용액담두와장치대Tm ：YAG정체진행냉각，최저온도체도료78．2K。채용평요강결구，채용중심파장785nm적격광이겁관위추운원，당LD주입공솔위60W ，정체공작온도위80K시，획득료14．2W적련속격광수출，광-광전환효솔위23．67％。실험측시료재상동빙포공솔，불동온도하Tm ：YAG정체적격광수출공솔。
Output characteristics of Tm :YAG laser side -pumped by laser diode (LD) at cryogenic temperature was investigated .Tm :YAG crystal was cooled with a liquid nitrogen dewar ,and the lowest temperature was 78 .2K .In the experiments ,laser diodes with the central wavelength of 785nm was used to pump the Tm :YAG laser .The highest continuous -wave(CW) power of 14 .2 W was achieved with the laser crystal temperature at 80K in a plane -concave cavity under a pump power of 60W ,and the total optical -optical conversion efficiency was 23 .67% .Output power of Tm :YAG laser crystal at different crystal temperature in the same pump power was measured .