发明名称 |
TRANSIENT OPTICAL POWER SUPPRESSING APPARATUS, METHOD, AND NETWORK |
摘要 |
An apparatus for suppressing optical power transients includes a variable optical attenuator receiving an input optical signal and outputting an output optical signal; an optical power sensing element coupled to the input optical signal and sensing a portion of the input optical signal; and a feedforward loop controller coupled to the variable optical attenuator and to the optical power sensing element; the feedforward control loop providing feedforward control of the variable optical attenuator to reduce optical power transients of the input optical signal and maintain a substantially constant output power based on the input optical power and a reference value; the variable optical attenuator having a default opaque state in which the input optical signal is substantially attenuated when power is not being supplied to said variable optical attenuator. Variations include feedback loop controllers and a combination feedback and feedforward loop controllers.
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申请公布号 |
US2009303576(A1) |
申请公布日期 |
2009.12.10 |
申请号 |
US20080174395 |
申请日期 |
2008.07.16 |
申请人 |
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发明人 |
LUNDQUIST PAUL;LEVESQUE MARC;ZACCARIN DENIS |
分类号 |
H01S3/00 |
主分类号 |
H01S3/00 |
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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