| 中红外连续波单谐振光学参量振荡器热致相位失配 |
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| 引用本文： | 刘磊,汪晓波,李霄,许晓军,姜宗福. 中红外连续波单谐振光学参量振荡器热致相位失配[J]. 强激光与粒子束, 2012, 24(1): 24-28 |
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| 作者姓名： | 刘磊 汪晓波 李霄 许晓军 姜宗福 |
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| 作者单位： | 1.国防科学技术大学 光电科学与工程学院, 长沙 41 0073 |
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| 摘 要： | 为了研究热致相位失配对中红外连续波单谐振光学参量振荡器(CW-SRO)输出效率的影响, 结合CW-SRO计算模型和热传导方程,利用有限元分析方法,重点对输出3.3 m波长闲频光的CW-SRO进行了分析。计算了不同信号光输出耦合率及不同泵浦功率下CW-SRO晶体输出截面上热致相位失配量的分布。由计算结果可以看出:晶体吸收腔中振荡信号光是导致晶体热效应的主要因素；在相同的输入条件下，泵浦功率在30 W以上时CW-SRO的热致相位失配将会大大降低其泵浦损耗率；通过增加信号光输出耦合率的方法，可以减少热致相位失配对CW-SRO输出效率的影响，但CW-SRO的振荡阈值会增加。
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| 关 键 词： | 中红外 连续波 光学参量振荡器 热致相位失配 |
| 收稿时间： | 2011-06-07 |
Thermal-induced dephasing in mid-infrared continuous-wave singly resonant optical parametric oscillator |
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| Liu Lei , Wang Xiaobo , Li Xiao , Xu Xiaojun , Jiang Zongfu. Thermal-induced dephasing in mid-infrared continuous-wave singly resonant optical parametric oscillator[J]. High Power Laser and Particle Beams, 2012, 24(1): 24-28 |
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| Authors: | Liu Lei Wang Xiaobo Li Xiao Xu Xiaojun Jiang Zongfu |
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| Affiliation: | 1.College of Opto-electric Science and Engineering,National University of Defense Technology,Changsha 410073,China |
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| Abstract: | This work is devoted to the study of thermal-induced dephasing in mid-infrared continuous-wave singly resonant optical parametric oscillator(CW-SRO). The thermal-induced dephasing in crystal output section versus pump power and output coupling of signal is calculated. The simulation results indicate that the crystal thermal effect of CW-SRO with 3.3 μm idler output is mainly affected by the absorption of the circulating signal power. Under the same input conditions, the CW-SRO’s thermal-induced dephasing with pump power above 30 W will greatly reduce the pump depletion. The thermal-induced dephasing will reduce with increasing the signal output coupling, while the threshold of CW-SRO will increase. |
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| Keywords: | mid-infrared continuous-wave optical parametric oscillators thermal-induced dephasing |
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