Transmission/reflection analysis for localization of loss-inducing perturbations in distributed fiber optic sensor based on Rayleigh backscattering

Vasilii V. Spirin; Francisco J. Mendieta-Jimenez; Pieter L. Swart

doi:10.1117/12.481990

9 September 2002 Transmission/reflection analysis for localization of loss-inducing perturbations in distributed fiber optic sensor based on Rayleigh backscattering

Vasilii V. Spirin, Francisco J. Mendieta-Jimenez, Pieter L. Swart

Author Affiliations +

Proceedings Volume 4920, Advanced Sensor Systems and Applications; (2002) https://doi.org/10.1117/12.481990
Event: Photonics Asia, 2002, Shanghai, China

Abstract

We present a simple method for the localization of a loss region for a fiber-optic alarm-condition sensor based on the measurement of transmitted and Rayleigh backscattered power. Bending the sensing fiber affects both the transmitted and backscattered power of unmodulated continuous-wave light that is launched into the fiber. The position of the loss region is determined from unique relationships between normalized transmitted and backscattered powers for different locations of the disturbance along the test fiber. The localization of a strong disturbance with an estimated accuracy of few meters along a few km-length single-mode test fiber was demonstrated.

Citation Download Citation

Vasilii V. Spirin, Francisco J. Mendieta-Jimenez, and Pieter L. Swart "Transmission/reflection analysis for localization of loss-inducing perturbations in distributed fiber optic sensor based on Rayleigh backscattering", Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); https://doi.org/10.1117/12.481990

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