发明授权
US07504610B2 Optical modulation amplitude compensation system having a laser driver with modulation control signals 有权
具有调制控制信号的激光驱动器的光调制幅度补偿系统

  • 专利标题: Optical modulation amplitude compensation system having a laser driver with modulation control signals
  • 专利标题(中): 具有调制控制信号的激光驱动器的光调制幅度补偿系统
  • 申请号: US11825463
    申请日: 2007-07-05
  • 公开(公告)号: US07504610B2
    公开(公告)日: 2009-03-17
  • 发明人: Daniel S. Draper
  • 申请人: Daniel S. Draper
  • 申请人地址: US CA Newport Beach
  • 专利权人: Mindspeed Technologies, Inc.
  • 当前专利权人: Mindspeed Technologies, Inc.
  • 当前专利权人地址: US CA Newport Beach
  • 代理机构: Weide & Miller, Ltd.
  • 主分类号: G01J1/32
  • IPC分类号: G01J1/32
Optical modulation amplitude compensation system having a laser driver with modulation control signals
摘要:
The power control system utilizing a normal average power control loop to control average power and modulation level of an optic signal generated by an optic signal generator. The target average power is adjusted by a small percentage, and the corresponding change in bias current needed to adjust the average power level is monitored. The change in average power divided by the change in bias current is a measure of the optic signal generator's slope efficiency. Modulation current is adjusted up or down based on the change in slope efficiency compared to the slope efficiency stored at the time of module calibration. By adjusting the modulation current, the desired optic signal output from the transmitter may be maintained.
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