Method and apparatus for providing simultaneous channel power equalization and monitoring
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United States of America Patent
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Issued Date -
Jun 3, 2004
app pub date -
Nov 29, 2002
filing date -
Nov 29, 2002
priority date (Note) -
Abandoned
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Abstract
A dynamic channel power equalization arrangement compensates for uneven channel powers of a wavelength multiplexed optical signal using diffractive gratings and semiconductor attenuator. A novel optical design is used to provide power equalization function and optical spectrum analyzer function in one single optical arrangement, as compared to the prior art in which there is only the power equalization function in such devices. This invention provides a simple cost-effective means for a complete solution for managing individual channel powers of wavelength-division multiplexed (WDM) signals.
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