发明申请
US20050286584A1 Optical apertures for reducing spontaneous emissions in photodiodes
有权
用于减少光电二极管自发辐射的光学孔
- 专利标题: Optical apertures for reducing spontaneous emissions in photodiodes
- 专利标题(中): 用于减少光电二极管自发辐射的光学孔
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申请号: US11026355申请日: 2004-12-30
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公开(公告)号: US20050286584A1公开(公告)日: 2005-12-29
- 发明人: James Guenter , Jimmy Tatum , James Biard
- 申请人: James Guenter , Jimmy Tatum , James Biard
- 专利权人: Finisar Corporation,
- 当前专利权人: Finisar Corporation,
- 主分类号: H01S5/00
- IPC分类号: H01S5/00 ; H01S5/026 ; H01S5/183
摘要:
An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirrors and an active region connected to the mirrors. The optical structure further includes a photodiode connected to the VCSEL. One or more optimizations may be included in the optical structure including optically absorbing materials, varying the geometry of the structure to change reflective angles, using optical apertures, changing the reflectivity of one or more mirrors, changing the photodiode to be more impervious to spontaneous emissions, and using ion implants to reduce photoluminescence efficiency.