Linear birefringence and imperfect quarter wave plate effects on optic-fiber current sensor

Author

Ding, Ying ; Dong, Yi ; Zhu, Jun ; Zheng, Bofang ; Zhang, Damin ; Hu, Weisheng

Author_Institution

State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiao Tong Univ., Shanghai, China

fYear

2011

fDate

13-16 Nov. 2011

Firstpage

1

Lastpage

6

Abstract

The scale factor of optic-fiber current sensor is nonlinearized because of the linear birefringence and the imperfection of quarter wave plate (QWP). In this paper, we analyze the effects of birefringence and show that modified scale factor performs better by using Faraday rotate mirror (FRM) and harmonic division method. The scale factor error associated with integrating imperfect quarter wave plate is also analyzed. Moreover, a certain linear birefringence may be helpful to compensate for deviation of QWP´s alignment.

Keywords

Faraday effect; birefringence; electric current measurement; electric sensing devices; fibre optic sensors; mirrors; optical fibres; optical retarders; FRM; Faraday rotate mirror; harmonic division method; imperfect quarter wave plate effect; linear birefringence effect; optic fiber current sensor; quarter-wave plate alignment; Integrated optics; Optical fiber sensors; Optical fibers; Optical polarization; Faraday rotate mirror; linear birefringence; optic-fiber current sensor; quarter wave plate;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition, 2011. ACP. Asia

Conference_Location

Shanghai

ISSN

2162-108X

Print_ISBN

978-0-8194-8961-6

Type

conf

DOI

10.1117/12.904480

Filename

6210911