Optical device with reduced temperature dependence
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United States of America Patent
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Mar 30, 2010
Grant Date -
Sep 18, 2008
app pub date -
May 30, 2008
filing date -
Mar 4, 2005
priority date (Note) -
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Abstract
Optical apparatus with improved center wavelength temperature stability. In an embodiment, an AWG has a plurality of slots inserted along the optical paths. The slots contain one or more compensation materials which collectively correct for an order Q temperature dependency of the AWG base material. Q>=2 or the number of compensation materials is at least 2 or both.
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