Reducing sensitivity fading in C-OTDR by use of enhanced scattering fiber segments

René Eisermann; Philipp Rohwetter; Konstantin Hicke

doi:10.1117/12.2267659

23 April 2017 Reducing sensitivity fading in C-OTDR by use of enhanced scattering fiber segments

René Eisermann, Philipp Rohwetter, Konstantin Hicke

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103239N (2017) https://doi.org/10.1117/12.2267659
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We present a technique to overcome the random transfer function of fiber-optic direct detection coherent optical time-domain reflectometry (C-OTDR). For this purpose, a standard optical fiber was treated by UV light in order to introduce local strongly scattering segments of definite size and distance to each other. Dynamic strain measurements were performed to demonstrate the sensory benefit in comparison to a non-manipulated fiber section. Our results show, that the modified fiber section exhibits a significant boost in strain sensitivity and in addition reduces the sensor dead time in a temperature-unstable environment as compared to a standard fiber.

Citation Download Citation

René Eisermann, Philipp Rohwetter, and Konstantin Hicke "Reducing sensitivity fading in C-OTDR by use of enhanced scattering fiber segments", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239N (23 April 2017); https://doi.org/10.1117/12.2267659

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