发明授权
- 专利标题: Optical communication module and optical communication device
- 专利标题(中): 光通信模块和光通信设备
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申请号: US13085470申请日: 2011-04-12
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公开(公告)号: US08503888B2公开(公告)日: 2013-08-06
- 发明人: Takashi Takemoto , Hiroki Yamashita , Shinji Tsuji
- 申请人: Takashi Takemoto , Hiroki Yamashita , Shinji Tsuji
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Miles & Stockbridge, P.C.
- 优先权: JP2010-092130 20100413
- 主分类号: H04B10/04
- IPC分类号: H04B10/04 ; H04B10/12
摘要:
An optical communication module and an optical communication device including the same are provided. For example, a first semiconductor chip on which a laser diode is formed and a second semiconductor chip on which a laser diode driver circuit, etc. for subjecting the laser diode to drive by current are formed are mounted on a package printed circuit board to be close to each other. Temperature detecting means is further formed on the second semiconductor chip (laser diode driver circuit, etc.). The temperature detecting means detects a temperature variation ΔT of the first semiconductor chip (laser diode) transmitted via a wiring in the package printed circuit board and controls the magnitude of the driving current of the laser diode driver circuit based on a detection result.
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