发明名称 Curved grating surface-emitting distributed feedback laser
摘要 Surface-emitting distributed feedback (SEDFB) lasers having a curved grating with a shape that produces good beam quality. A preferred shape is one for which the grating curves away from the center of the gain region of the laser. The use of the curved grating of the present invention produces good beam quality from broad area SEDFB lasers with high power and high efficiency. The present invention overcomes self-induced filament formation and dynamic instabilities that limit achievable beam quality. The present invention provides for a holographic method for fabricating curved gratings for the SEDFB lasers that is consistent with laser batch processing.
申请公布号 US5867521(A) 申请公布日期 1999.02.02
申请号 US19970805412 申请日期 1997.02.26
申请人 RAYTHEON COMPANY 发明人 MACOMBER, STEVEN H.
分类号 H01S5/12;H01S5/18;H01S5/223;H01S5/30;(IPC1-7):H01S3/19 主分类号 H01S5/12
代理机构 代理人
主权项
地址