摘要
本文首次提出改进外腔半导体激光器性能必须同时满足两个条件:(1)振荡模要有最大的净增益;(2)振荡模与其相邻纵模间的净增益差足够大。据此理论研制成复合双外腔半导体激光器,首次在无任何反馈控制条件下实现了单模稳定运转时间大于24h、同一单模运转注入电流范围提高二个数量级,输出功率提高一个量级,其它各项性能也均有大幅度提高。
We pointed out here for the first time that it has to be satisfied simultaneously the following two conditions to improve the performance of the semiconductor laser with external cavity; (1) The oscillating mode of this kind of laser has the greatest net gain among all the possible longitudinal mode of the laser; (2) The net gain deference between the oscillating mode and its possible adjacent longitudinal mode of the laser is great enough. Under the detection of the theory we developed a semiconductor laser with composite double external cavity. The long stability of the single longitudinal mode is greater than 24 hours without any feedback control. The range of the injection current operated on the same single longitudinal mode increased by 2 order, and the output power raised one order. The other performance of the laser is improved a great deal.
出处
《激光与红外》
CAS
CSCD
北大核心
1989年第2期23-27,共5页
Laser & Infrared
