Proceedings of the 2013 International Conference on Advanced Computer Science and Electronics Information (ICACSEI 2013)

Optical Polarization Errors in Sagnac Fiber Optic Current Sensor

Authors
Li hui Wang, Jian Sun, Jian fei Ji, Sheng bao Xu
Corresponding Author
Li hui Wang
Available Online August 2013.
DOI
https://doi.org/10.2991/icacsei.2013.50How to use a DOI?
Keywords
Fiber optic current sensor, Fiber optic gyroscope, Optical polarization state, Phase retardation, Modeling.
Abstract
Sagnac fiber optic current sensor(S-FOCS) is a kind of precision instrument based on optical polarization and optical interference theory. There are several kinds of error characteristics from optical components in S-FOCS, including polarizer, integrated optical chip, quarter-wave retarder, sensing head and so on. With these errors, linearly polarized light wave in PM fiber and circularly polarized light wave in sensing fiber become elliptically polarized light wave, then, nonreciprocal phase shift induced by magnetic field of the current is interrupted by wrong polarization state. Focused on optical polarization error in S-FOCS, we analyze the characteristics of polarization errors associated with optical components in S-FOCS theoretically, and we demonstrate the methods to build optical polarization error models by using Poincare sphere and Jones matrix respectively. Then, based on model of polarization state in S-FOCS, we carry out simulation of polarization error characteristics in S-FOCS, and theoretically investigate the influence of several main error factors on optical polarization characteristics, including polarizer, phase delay in quarter-wave retarder, splice angular between quarter-wave retarder and PM fiber.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
2013 International Conference on Advanced Computer Science and Electronics Information (ICACSEI 2013)
Part of series
Advances in Intelligent Systems Research
Publication Date
August 2013
ISBN
978-90-78677-74-1
ISSN
1951-6851
DOI
https://doi.org/10.2991/icacsei.2013.50How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Li hui Wang
AU  - Jian Sun
AU  - Jian fei Ji
AU  - Sheng bao Xu
PY  - 2013/08
DA  - 2013/08
TI  - Optical Polarization Errors in Sagnac Fiber Optic Current Sensor
BT  - 2013 International Conference on Advanced Computer Science and Electronics Information (ICACSEI 2013)
PB  - Atlantis Press
SP  - 202
EP  - 205
SN  - 1951-6851
UR  - https://doi.org/10.2991/icacsei.2013.50
DO  - https://doi.org/10.2991/icacsei.2013.50
ID  - Wang2013/08
ER  -