摘要
报道了采用1064nm激光抽运周期极化掺杂氧化镁的铌酸锂(PPMgO…CLN)晶体光参变振荡器(OPO)实现高效率2.7μm可调谐激光输出的实验结果,理论计算了PPMgO…CLN晶体准相位匹配(QPM)温度调谐曲线。在1064nm激光抽运功率为182W,声光Q开关工作频率为10kHz和PPMgO:CLN晶体工作温度为150℃条件下,获得了平均功率为36.7W、波长为2.73μm中红外激光输出,斜率效率为23.7%。通过改变周期为31.3μmPPMgO…CLN晶体的工作温度30℃～200℃,获得了中红外波长3.0～2.6μm激光输出,波长温度调谐实验结果与理论分析结果有大约10℃的差异。
Experimental results of a high-efficiency 2.7 μm tunable laser are demonstrated on a quasi-phase-matched singly resonant optical parametric oscillator （OPO） in PPMgO：CLN （5% MgO-doping） crystal pumped by a 1064 nm laser. Theoretical analysis of the PPMgO：CLN temperature tuning is presented. When the crystal is operated at 150 ℃ and the pump power is 182 W with a repetition rate of 10 kHz,an average output power of 36.7 W at 2.73 μm is obtained with a slope efficiency of 23.7%. The wavelength tunability of 3.0~2.6 μm can be achieved by adjusting the temperature of a 31.3 μm period PPMgO：CLN crystal from 30 ℃ to 200 ℃. Compared with the results of theoretical analysis,the discrepancy of about 10 ℃ is found in experiment.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2010年第9期2624-2628,共5页
Acta Optica Sinica
