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光抽运垂直扩展腔面发射激光器腔内倍频理论研究
Numerical simulation of intracavity second harmonic generation for optically pumped semiconductor vertical-external-cavity surface-emitting lasers
【摘要】 建立了计入光波在非线性晶体中走离和相位失配情况下的光泵面发射激光器腔内倍频的速率方程理论模型,采用循环数值逼近的方法对该速率方程进行求解.以BBO,LBO,PPLN等非线性晶体为例,研究了晶体长度以及抽运功率等因素对倍频输出功率的影响,模拟结果与实验结果符合得较好.
【Abstract】 A numerical model of intracavity second harmonic generation(SHG)is constructed considering the effect of phase mismatching and birefringent walk-off in nonlinear crystals for optically pumped semiconductor vertical-external-cavity surface-emitting laser(OPS-VECSEL).The influences of the crystal length and the pump power on the SHG output power for some nonlinear crystals,such as BBO,LBO and PPLN,are studied in detail.The results are in good agreement with the experimental data.
【关键词】 光抽运;
垂直扩展腔面发射激光器;
腔内倍频;
数值模拟;
【Key words】 optical pumping; vertical-external-cavity surface-emitting semiconductor laser; intracavity second harmonic generation; numerical simulation;
【Key words】 optical pumping; vertical-external-cavity surface-emitting semiconductor laser; intracavity second harmonic generation; numerical simulation;
【基金】 国家自然科学基金(批准号:60636020)资助的课题~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2009年06期
- 【分类号】TN248
- 【被引频次】3
- 【下载频次】176