Depolarized single-mode fiber optic gyroscope

Fengping Yan; Yi Yao; Shuisheng Jian; HongJie Xu; Xinzhen Du; Weixu Zhang

doi:10.1117/12.258203

12 November 1996 Depolarized single-mode fiber optic gyroscope

Fengping Yan, Yi Yao, Shuisheng Jian, HongJie Xu, Xinzhen Du, Weixu Zhang

Proceedings Volume 2837, Fiber Optic Gyros: 20th Anniversary Conference; (1996) https://doi.org/10.1117/12.258203
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

In this paper, a new type of depolarized fiber optic gyroscope is described. Sensing coil is constructed by single-mode optical fiber with 200 meters length and 70 mm wounding diameter. A superluminescent diode source is used to reduce both the coherent scattering effect and Kerr effect. Two depolarizers with 1.0 percent degree of polarization and one polarizer with 40dB extinction ratio were used to reduce the output bias drift and improve the scale factor stability. A specially designed PZT phase modulator is used to suppress the AM noise. Under laboratory environment, the zero point error of 1.5 degrees/hr over seven hours with one second time constant and 700 ppm scale factor with +/- 100 degrees/sec maximum rotating rate were achieved for this depolarized I-FOG.

Citation Download Citation

Fengping Yan, Yi Yao, Shuisheng Jian, HongJie Xu, Xinzhen Du, and Weixu Zhang "Depolarized single-mode fiber optic gyroscope", Proc. SPIE 2837, Fiber Optic Gyros: 20th Anniversary Conference, (12 November 1996); https://doi.org/10.1117/12.258203

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available