Interferometric fiber optic gyroscope with off-frequency...

Details Interferometric fiber optic gyroscope with off-frequency... Interferometric fiber optic gyroscope with off-frequency...

2008-06-27

2010-10-19

Lee, Hwa S. A (Department: 2886)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

07817284

ABSTRACT:
Interference in a rotation rate detector signal of an interferometric fiber-optic gyroscope from a bias phase modulator signal may be reduced or substantially avoided by transmitting one or more off-frequency signals having a frequency other than the eigenfrequency of the gyroscope towards a bias phase modulator, generating the bias phase modulator signal having a frequency substantially equal to the eigenfrequency of the gyroscope, and driving the bias phase modulator with the bias phase modulator signal.

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