THERMALLY TUNABLE FIBER OPTIC DEVICE
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Sep 19, 2008
filing date -
Sep 19, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Improvements relating to thermally tunable fiber optical devices have been disclosed. In one aspect, a thermally tunable fiber Bragg grating device is provided with one or more heaters to (3a, 3b) produce a desired temperature profile along the grating, and one or more supporting auxiliary heaters (5a, 5b) are provided at the edges of the grating in order to compensate for temperature drops caused by heat loss to lower temperature surroundings. In another aspect, two heating structures are thermally connected to each other, such that dissipated heat from one of the structures supports the heating effect of the other structure.
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