Chromatic dispersion and dispersion slope compensating apparatus
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United States of America Patent
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Aug 28, 2007
Grant Date -
Sep 14, 2006
app pub date -
Jun 29, 2005
filing date -
Mar 14, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
In a chromatic dispersion and dispersion slope compensating apparatus according to the present invention, a WDM light which has been angularly dispersed to a first direction by a VIPA plate, is angularly dispersed to a second direction vertical to the first direction by a diffraction grating, and optical signals of respective wavelengths output from the diffraction grating are reflected by any one of a plurality of three-dimensional mirrors having reflective surfaces of curved shapes different from each other, to be returned to the VIPA plate. Thus, with a simple control mechanism in which the plurality of three-dimensional mirrors are moved to only the second direction, an apparatus capable of variably compensating for the chromatic dispersion and the dispersion slope independent of each other can be provided.
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