Magnetic field and current sensors with robust spun fiber

Viatcheslav G. Izraelian

doi:10.1117/12.339095

3 February 1999 Magnetic field and current sensors with robust spun fiber

Viatcheslav G. Izraelian

Proceedings Volume 3541, Fiber Optic and Laser Sensors and Applications; Including Distributed and Multiplexed Fiber Optic Sensors VII; (1999) https://doi.org/10.1117/12.339095
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

The concept of robust sensor of current and magnetic field was under consideration based on the use of polarization interferometer scheme. The scheme utilized broadband lightsource and single mode fiber with significant intrinsic birefringence comparable with the period of birefringence axes revolution, their ratio N being the main parameter both for sensor robustness and sensitivity determination. The external forces-originated perturbations were taken into account in the 'method of averaging' approximation and an optimal condition for number N was determined to suppress perturbations' influence. Even for perturbed case the polarization retardation in such a fiber was found not accumulating but varying periodically. Conditions for these varying terms to vanish due to source bandwidth averaging were evaluating.

Citation Download Citation

Viatcheslav G. Izraelian "Magnetic field and current sensors with robust spun fiber", Proc. SPIE 3541, Fiber Optic and Laser Sensors and Applications; Including Distributed and Multiplexed Fiber Optic Sensors VII, (3 February 1999); https://doi.org/10.1117/12.339095

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