808nm波长光纤耦合高功率半导体激光器

808 nm Wavelength High power Fibre Coupling LD

采用柱透镜对半导体激光器（ＬＤ）的输出光束进行了有效收集、预准直及多模光纤之间的耦合实验。采用８０８ｎｍ波长，１５０μｍ条宽结构的激光器件，与２００μｍ芯径平端光纤的耦合效率高达９０％以上，光纤输出功率为１．０Ｗ。

The light output of a LD is effectively collected, pre collimated with a cylindrical lens, and coupled into a multi mode fibre. The emitting width and lasing wavelength of the LD is 150 μm and 808 nm, the coupling efficiency between the LD and a 200 μm core diameter fibre with flat end is greater than 90%, and more than 1.0 W CW output from the fibre has been achieved. Also, main factors affecting the coupling efficiency are analysed.