广义两段式半导体激光器的特性研究

Study on characteristics of broad sense two segment semiconductor laser

利用由射线法导出的两段式半导体激光器（２ＳＬＤ）的端面输出谱的表达式，研究了两电极半导体激光器（２ＥＬＤ）和外腔式半导体激光器（ＥＣＬＤ）。结果表明：２ＥＬＤ的振荡波长并非始终都与腔的共振波长相同；在ＥＣＬＤ上实现准连续调谐的关键是使激光器能被调谐在二极管的反共振波长处振荡，因此，我们求得了ＥＣＬＤ实现反共振激射的阈值载流子数密度以及对界面反射率的要求的表达式。

Using general expression of output spectrum from end reflector of a two segment semiconductor laser,deduced from ray trace method,the study on the characteristics of the two electrode diode lasers (TELDs) and external cavity diode laser has been carried out.