中国激光, 2010, 37 (11): 2821, 网络出版: 2010-11-16  

连续波可调谐内腔光学参量振荡器及橙红光源

Continuous-Wave Tunable Intra-Cavity Optical Parametric Oscillator and Orange-Red Source
盛泉 1,2,*丁欣 1,2陈娜 1,2李雪 1,2禹宣伊 3温午麒 1,2王鹏 1,2姚建铨 1,2
作者单位
1 天津大学激光与光电子研究所, 天津大学精仪学院, 天津 300072
2 光电信息技术科学教育部重点实验室, 天津 300072
3 南开大学物理科学学院, 天津 300071
摘要
报道了利用半导体激光器(LD)端面抽运的钒酸钇(Nd:YVO4)激光器作为抽运源, 多周期周期极化铌酸锂(PPLN)为非线性晶体的连续波内腔光学参量振荡器(OPO)及基于此的连续波可调谐橙红光光源。为实现OPO的连续波运转, 采用了内腔抽运方式, 并对谐振腔进行了合理设计。实验得到调谐范围1406~1513 nm的信号光及3.66~4.1 μm的中红外闲频光连续波输出, 在10.9 W的LD功率下, 最大输出功率分别为输出波长1500 nm处的820 mW和3.86 μm处的195 mW, 相对LD功率的转换效率分别为7.5%和1.8%。利用BaB2O4(BBO)晶体对OPO的1064 nm抽运光和1.4~1.5 μm信号光进行内腔和频, 获得了调谐范围606~624 nm的橙红波段连续波输出, 最大输出功率为624 nm处的120 mW, 转换效率为1.1%。
Abstract
We report a continuous-wave tunable optical parametric oscillator (OPO) which is intra-cavity pumped by a laser diode (LD) end-pumped Nd:YVO4 laser and utilize a periodically-poled lithim niobate (PPLN) crystal as nonlinear medium. Cavities are carefully designed and intra-cavity pumping schemes are adopted to realize continuous-wave operation. 1406~1513 nm signal output and 3.66~4.1 μm mid-infrared idler output are obtained with the maximum power of 820 mW at 1500 nm and 195 mW at 3.86 μm, corresponding conversion efficiencies versus 10.9 W LD power are 7.5% and 1.8%. 606~624 nm continuous-wave tunable orange-red output is also obtained by intra-cavity sum-frequency generating of 1064 nm pump wave and 1.4~1.5 μm signal wave of the OPO in a BBO crystal. The maximum output power is 120 mW at 624 nm, with conversion efficiency of 1.1%.
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盛泉, 丁欣, 陈娜, 李雪, 禹宣伊, 温午麒, 王鹏, 姚建铨. 连续波可调谐内腔光学参量振荡器及橙红光源[J]. 中国激光, 2010, 37(11): 2821. Sheng Quan, Ding Xin, Chen Na, Li Xue, Yu Xuanyi, Wen Wuqi, Wang Peng, Yao Jianquan. Continuous-Wave Tunable Intra-Cavity Optical Parametric Oscillator and Orange-Red Source[J]. Chinese Journal of Lasers, 2010, 37(11): 2821.

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