TY - JOUR
T1 - Investigation of the depolarized single-mode fiber optic gyroscope
AU - Yan, Fengping
AU - Yao, Yi
AU - Jian, Shuisheng
AU - Xu, Hongjie
AU - Du, Xinzhen
AU - Zhang, Weixu
N1 - Publisher Copyright:
© 1996 SPIE. All rights reserved.
PY - 1996/11/12
Y1 - 1996/11/12
N2 - In this paper, a new type 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(SLD) is used to reduce both the coherent scattering effect and Kerr effect. Two depolarizers with 1 .0% 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 spectially designed PZT phase modulator is used to suppress the AM noise. Under laboratory enviroment, the zero point error of 1.5° /hr over senven hours with one second time constant and 700 ppm scale factor with ±100° /sec maximum rotationg rate were achieved for this depolarized I-FOG.
AB - In this paper, a new type 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(SLD) is used to reduce both the coherent scattering effect and Kerr effect. Two depolarizers with 1 .0% 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 spectially designed PZT phase modulator is used to suppress the AM noise. Under laboratory enviroment, the zero point error of 1.5° /hr over senven hours with one second time constant and 700 ppm scale factor with ±100° /sec maximum rotationg rate were achieved for this depolarized I-FOG.
KW - Degree of polarization
KW - Fiber optic gyroscope
KW - Optical fiber depolarizer
UR - https://www.scopus.com/pages/publications/84962125553
U2 - 10.1117/12.258203
DO - 10.1117/12.258203
M3 - 会议文章
AN - SCOPUS:84962125553
SN - 0277-786X
VL - 2837
SP - 402
EP - 405
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
T2 - 20th Anniversary Conference on Fiber Optic Gyros 1996
Y2 - 4 August 1996 through 9 August 1996
ER -