Polarization effects in the Sagnac-Michelson distributed disturbance location sensor

被引：19

作者：

Chtcherbakov, AA ^{[1
]}

Swart, PL ^{[1
]}

机构：

[1] Rand Afrikaans Univ, Fac Engn, Sensors Sources & Signal Proc Res Grp, ZA-2006 Auckland Pk, South Africa

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1998年 / 16卷 / 08期

关键词：

birefringence; distributed optical fiber sensors; polarization effects; Sagnac-Michelson interferometer;

D O I：

10.1109/50.704606

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An analysis, based on Jones calculus, is presented of polarization effects in the merged Sagnac-Michelson interferometric sensor for distributed disturbance detection, The nature of birefringence biasing in the Sagnac interferometer is clarified: the cosine-response of the Sagnac interferometer can be biased to a sine-response by introducing birefringence with retardation equal to pi/2 in the Sagnac-loop. In addition, the input light should be linearly polarized and both the direction of polarization and the optical axes of the birefringence region should be oriented at pi/4 with respect to the plane of the fiber-loop.

引用

页码：1404 / 1412

页数：9

共 18 条

[1]

CANCELLIERI G, 1991, SINGLE MODE OPTICAL, P242

[2] Dual wavelength Sagnac-Michelson distributed optical fiber sensor [J].