Tunable optical fiber grating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 2, 2002
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Nov 4, 1999
priority date (Note) -
Expired
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Abstract
The invention provides a structure of tunable optical filter grating. The structure includes a bimetallic strip and a compression spring to set up suitable strain for adjusting the position of the central wavelength. The bimetallic strip can also be specially designed to compensate for any drift in central wavelength due to temperature change so that temperature monitoring and feedback control designs is obsolete. Therefore, the operating wavelength of the optical grating is adjustable yet insensitive to temperature changes.
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