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Related Experiment Video

Updated: May 20, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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Published on: February 28, 2016

Optically compensated dual-polarization interferometric fiber-optic gyroscope.

Yi Yang¹, Zinan Wang, Zhengbin Li

¹State Key Laboratory of Advanced Optical Communication Systems & Networks, Department of Electronics, Peking University, Beijing 100871, China. pkuidioteque@gmail.com

|July 25, 2012

Summary

This summary is machine-generated.

This study introduces optical compensation to interferometric fiber-optic gyroscopes (IFOGs) by utilizing dual polarization states. This method significantly reduces noise and enhances the bias instability of IFOGs.

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Area of Science:

Optical Engineering
Sensor Technology
Inertial Navigation

Background:

Interferometric fiber-optic gyroscopes (IFOGs) are susceptible to polarization-fluctuation-induced noise.
Existing IFOG designs often struggle with maintaining high sensitivity and stability.

Purpose of the Study:

To introduce and validate an optical compensation technique for IFOGs.
To suppress polarization-fluctuation-induced noise in IFOGs.
To enhance the overall performance and stability of IFOGs.

Main Methods:

Implemented a dual-polarized IFOG utilizing both fast and slow axes of polarization-maintaining fiber.
Achieved optical compensation by adding interference signals from the two orthogonal polarization states.
Tested the dual-polarized IFOG to evaluate its performance.

Main Results:

Demonstrated effective optical compensation in the dual-polarized IFOG.
Observed significant improvements in all Allan variance indices.
Reduced bias instability from 0.335 and 0.227 deg/h to 0.061 deg/h.

Conclusions:

Optical compensation effectively suppresses polarization-fluctuation-induced noise in IFOGs.
The dual-polarized IFOG design enhances sensitivity and stability.
This technique offers a promising approach for improving IFOG performance.