Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Reduction of optical Kerr-effect induced error in a resonant micro-optic gyro by light-intensity feedback technique

Not Accessible

Your library or personal account may give you access

Abstract

As a type of main optical error source in the resonant micro-optic gyro (RMOG), the optical Kerr-effect brings a nonzero bias to the output of the RMOG. The light-intensity fluctuations are interpreted as the cause. To eliminate the drifts due to the optical Kerr-effect, the intensities of the clockwise (CW) and counterclockwise (CCW) lightwaves circulating in the resonator should be equal at all times. Through theoretical analysis and experimental investigation, a linear relationship between the second-harmonic demodulated signal and the light-intensity input to the resonator is demonstrated for the sinusoidally phase modulated RMOG. Both our numerical simulation and experimental verification are carried out, which, for the first time to the best of our knowledge, demonstrate that the second-harmonic demodulated signal can be used as a feedback error signal to reduce both the input-intensity mismatch between the CW and CCW lightwaves and their intensity fluctuations. By applying the light-intensity feedback loop to the closed-loop RMOG, the light-intensity fluctuations are reduced to 2.7×105, down from 5.86%. As a result, the optical-Kerr effect induced error is effectively reduced.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Resonance asymmetry induced bias errors in waveguide type optical passive resonator gyro

Yan Chen, Huilian Ma, and Zhonghe Jin
Appl. Opt. 51(13) 2373-2378 (2012)

Polarization maintaining silica waveguide resonator optic gyro using double phase modulation technique

Hui Mao, Huilian Ma, and Zhonghe Jin
Opt. Express 19(5) 4632-4643 (2011)

Eliminating bias drift error in lock-in frequency for a resonant fiber optic gyro

Huilian Ma, Yuchao Yan, Xiao Lu, and Zhonghe Jin
Appl. Opt. 53(16) 3399-3403 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved