发明公开
- 专利标题： Optical amplifier-photodetector device
- 专利标题（中）： OptischeVerstärker-Photodetektor-Anordnung。
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申请号： EP90310960.1申请日： 1990-10-05
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公开(公告)号： EP0422854A2公开(公告)日： 1991-04-17
- 发明人: Halemane, Thirumala Raya , Koch, Thomas L. , Korotky, Steven K.
- 申请人： AT&T Corp.
- 申请人地址： 32 Avenue of the Americas New York, NY 10013-2412 US
- 专利权人： AT&T Corp.
- 当前专利权人： AT&T Corp.
- 当前专利权人地址： 32 Avenue of the Americas New York, NY 10013-2412 US
- 代理机构： Watts, Christopher Malcolm Kelway, Dr.
- 优先权： US421217 19891013
- 主分类号： G02B6/12
- IPC分类号： G02B6/12 ; H01L31/109
摘要：
The device here disclosed comprises an optical amplifier (12) coupled to direct optical energy into a passive wavegulde (16,14,21) for transmission through the waveguide to its other end. A photodetector (8) positioned relative to the passive waveguide, detects the presence of optical energy in the passive waveguide. The photodetector in the structure illustrated is positioned downstream from the optical amplifier and spatially positioned with respect to the optical amplifier to receive optical energy only from the waveguide. The photodetector does not receive optical energy directly from the optical amplifier. A small fraction of the optical energy carried by the passive waveguide is received and detected by the photodetector.
公开/授权文献
- EP0422854B1 Optical amplifier-photodetector device 公开/授权日：1995-08-09
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