Suppression of lock-in effect due to a MIOC frequency response in a fiber-optic Sagnac interferometer
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United States of America Patent
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Dec 13, 2016
Grant Date -
Sep 18, 2014
app pub date -
Mar 12, 2014
filing date -
Mar 12, 2013
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Abstract
A fiber-optic Sagnac interferometer in a rotation rate sensor comprises a multifunctional integrated optical chip (MIOC) with a MIOC transfer function. A digital filter is connected upstream to the multi-functional integrated optical chip, whose filter transfer function corresponds basically to the inverse MIOC transfer function such that the MIOC transfer function is compensated by the filter transfer function. Corresponding coefficients of the filter transfer function may be determined in a main control loop.
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