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内腔式反斯托克斯激光器的归一化理论解析

Normalized Theoretical Analysis of Intracavity Anti-Stokes Lasers

王聪   王喆  
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摘要

反斯托克斯散射是频率上转换的四波混频效应, 通常反斯托克斯激光器的转换效率较低。因此, 通过理论优化指导实验对提高激光器的性能尤为重要。对平面波近似下的内腔式反斯托克斯激光器的速率方程进行归一化处理, 通过数值求解归一化速率方程组, 得到描述内腔式反斯托克斯激光器运行的一组普适理论曲线, 分析了复合归一化变量对内腔式反斯托克斯激光器性能的影响。并用实验数据对归一化理论进行了验证, 结果表明, 从归一化理论出发所估计出的内腔式反斯托克斯激光器的单脉冲能量、脉冲峰值功率和脉冲宽度与实际测量数据相符, 证明了所提的归一化速率方程组模型的正确性和可行性。

Abstract

Anti-Stokes scattering is the four-wave mixing effect of the frequency up conversion. Generally, the conversion efficiency of the anti-Stokes laser is lower. Therefore, it is particularly important for improving the performance of the laser through guiding experiment of theoretical optimization. In this paper, the rate equations of intracavity anti-Stokes lasers under plane wave approximation are normalized. By numerically solving the normalized rate equations, a group of universal theoretical curves are obtained to describe the operation of the intracavity anti-Stokes lasers. The influences of the compound normalized variables on the performance of the intracavity anti-Stokes lasers are analyzed. The normalized theory is verified with actual experimental data. The result indicates that the single pulse energy, pulse peak power and pulse width of the intracavity anti-Stokes laser estimated from the normalized theory are consistent with the measured data. The proposed normalized rate-equation model is proved correct and feasible.

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中图分类号:O437.3

DOI:10.3788/cjl201845.0101009

所属栏目:激光器件与激光物理

基金项目:国家自然科学基金(11504268), 天津市教委科研计划项目(2017KJ240)

收稿日期:2017-08-01

修改稿日期:2017-09-08

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王聪:天津理工大学理学院, 天津 300384
王喆:天津理工大学理学院, 天津 300384

联系人作者:王聪(wangc.sd@163.com)

备注:王聪(1987-), 女, 博士, 讲师, 主要从事激光物理与新型激光器及非线性光学等方面的研究。

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引用该论文

Wang Cong,Wang Zhe. Normalized Theoretical Analysis of Intracavity Anti-Stokes Lasers[J]. Chinese Journal of Lasers, 2018, 45(1): 0101009

王聪,王喆. 内腔式反斯托克斯激光器的归一化理论解析[J]. 中国激光, 2018, 45(1): 0101009

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