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半导体激光器远场发散角的近似计算
Approximate calculation of far field divergence angle of semiconductor laser
【摘要】 从半导体激光器的单模工作条件出发,提出一个远场发散角的近似公式。比较用此近似公式计算结果与数值计算、二阶矩近似计算的结果发现,在半导体实际应用中的波导层范围,该公式能减少计算难度,同时能够满足精度要求。
【Abstract】 An approximate formula based on single mode work condition of semiconductor laser is put forward.Comparing the result of using the approximate formula with numerical calculation and second moment approximates’,it was found that the approximate formula can reduce calculation difficulty,also be satisfied the accuracy in used waveguide film of semiconductor laser.
【关键词】 激光物理;
半导体激光器;
光束质量因子;
远场发散角;
【Key words】 laser physics; semiconductor laser; beam quality factor; divergence angle;
【Key words】 laser physics; semiconductor laser; beam quality factor; divergence angle;
【基金】 西南交通大学基础发展研究基金资助(资助编号2002B03)
- 【文献出处】 激光杂志 ,Laser Journal , 编辑部邮箱 ,2005年05期
- 【分类号】TN248.4;
- 【被引频次】8
- 【下载频次】677