发明名称 |
Optical margin testing system for automatic power control loops |
摘要 |
An optical margin testing system is provided for automatic power control loops. An optical circuit includes a laser diode and a monitor diode coupled to the automatic power control loop. A bias generator circuit generates a control signal. The control signal is applied to the automatic power control loop. The control signal enables an operation point of the laser diode to both increase and decrease by a set percentage value for optical margin testing. The bias generator circuit includes a tri-state receiver. An input signal is applied to the tri-state receiver for selecting one of a normal operational mode, an increased set percentage value operational mode, and a decreased set percentage value operational mode. A current mirror is coupled to the tri-state receiver provides the control signal that is applied to the automatic power control loop.
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申请公布号 |
US2003142707(A1) |
申请公布日期 |
2003.07.31 |
申请号 |
US20020058864 |
申请日期 |
2002.01.28 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BAUMGARTNER STEVEN JOHN |
分类号 |
H01S5/00;H01S5/042;H01S5/0683;(IPC1-7):H01S3/13 |
主分类号 |
H01S5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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