发明授权
- 专利标题： Optical transmitting apparatus and optical multiplexing unit
- 专利标题（中）： 光发射装置和光复用单元
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申请号： US12385071申请日： 2009-03-30
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公开(公告)号： US08331787B2公开(公告)日： 2012-12-11
- 发明人: Takeshi Noma , Haruki Tanaka , Yoshikazu Nakanishi , Makoto Ohtou , Hideaki Sugiya , Ichiro Nakajima , Toshihiro Suzuki
- 申请人： Takeshi Noma , Haruki Tanaka , Yoshikazu Nakanishi , Makoto Ohtou , Hideaki Sugiya , Ichiro Nakajima , Toshihiro Suzuki
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Staas & Halsey LLP
- 优先权： JP2008-155942 20080613
- 主分类号： H04J14/02
- IPC分类号： H04J14/02 ; H04J14/00 ; H04B10/04
摘要：
Even during a protection period in which a state transition is not caused from an ALC state to an ALD state, when an output light level that is inputted is below a threshold for ALC transition read from a memory, a processor causes a transition by switching an internal state from an ALC state to an ALD state. Then, an ALD operation is started, outputting a control voltage to a VAT control unit so as to achieve a predetermined fixed attenuation amount.
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