Optical power transient control scheme for EDFA amplifiers
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United States of America Patent
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Jun 29, 2004
Grant Date -
Feb 20, 2003
app pub date -
Aug 15, 2001
filing date -
Aug 15, 2001
priority date (Note) -
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Abstract
An improved optical power transient control scheme is provided for optical amplifiers used in long haul, high capacity DWDM optical networks. The optical power transient control scheme employs a combination of feed-forward and feedback control mechanisms to adjust the pump laser current of an amplifier. In this way, the optical power transient control scheme allows for very fast detection of transient changes in optical input power and fast control settling time with minimal optical power degradation.
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