Memory effect of POF distributed strain sensor

Kentaro Nakamura; Irwan R. Husdi; Sadayuki Ueha

doi:10.1117/12.566531

9 June 2004 Memory effect of POF distributed strain sensor

Kentaro Nakamura, Irwan R. Husdi, Sadayuki Ueha

Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004) https://doi.org/10.1117/12.566531
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain

Abstract

Characteristics of plastic optical fiber (POF) as a distributed sensor are under test using a specially designed optical time-domain reflectometry (OTDR). Our system is capable for testing an ordinary POF of 1 mm in diameter up to about 120 m in length with the use of a photon counting detector. The OTDR responses are experimentally investigated for mechanical disturbance at one point along the POF such as small bending, axial strain, side loading and twisting deformation. We found that the POF sensing system can be applied for very large stain and has a memory effect due to the plastic deformation. Even after releasing the strain, we can observe the residual OTDR responses. This nature would serve a unique function as a distributed sensor which we can not achieve using silica-glass fiber system. Temperature effects on the OTDR results for POF are also studied and discussed.

Citation Download Citation

Kentaro Nakamura, Irwan R. Husdi, and Sadayuki Ueha "Memory effect of POF distributed strain sensor", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); https://doi.org/10.1117/12.566531

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