发明名称 |
Methods and systems for controlling optical power attenuation |
摘要 |
Methods and systems for controlling optical power attenuation are provided. A method comprises periodically measuring an optical power of an optical signal received by an optical receiver and periodically measuring a first attenuation control signal voltage. When the optical power measurement is outside a target power range, the method continues with calculating a target voltage necessary to maintain the optical power measurements at a target power level; calculating a second attenuation control signal based on the target voltage, wherein the second attenuation control signal is calculated to provide an over-damped transient response that maintains the second attenuation control signal within a usable range of a variable optical power attenuator; applying a second attenuation control signal voltage based on the second attenuation control signal to the variable optical power attenuator; and adjusting attenuation of the optical signal based on the second attenuation control signal voltage.
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申请公布号 |
US7729620(B2) |
申请公布日期 |
2010.06.01 |
申请号 |
US20050238553 |
申请日期 |
2005.09.29 |
申请人 |
ADC TELECOMMUNICATIONS, INC. |
发明人 |
SCHATZ PAUL;ZAVADSKY DEAN;MITCHELL WILLIAM J.;STUART STEVE;SANTOS ANA |
分类号 |
H04B10/08;H04B10/06;H04B17/00 |
主分类号 |
H04B10/08 |
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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