根据 L ang- kobayashi带光反馈的半导体激光器模型 ,从理论上推导出其稳定条件 .数学模拟表明 ,对于动态单模半导体激光器 ,少量的外光反馈也会改变激光器的输出模式 ,随着反馈量的增加 ,激光器的振荡模式亦增加 ,并始终为 (2 n+1 )个模式 According to the Lamb-kobayashi model of semiconductor laser with optical feedback, the stability condition is deduced theoretically.The mathematical simulation shows that for a dynamic single-mode semiconductor laser, a small amount of external light feedback also changes the output mode of the laser, The oscillation mode of the laser is also increased, and the mode is always (2 n + 1)