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Precise Optical Fiber Length Measurement System Based on Fresnel Reflection



Author(s)

Firat Ertac Durak, Arif Basgumus, Serif Ali Sadik and Ahmet Altuncu

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DOI:10.17265/2328-2223/2016.03.003

In this study, a precise optical fiber length measurement system is proposed. The measurement technique is based on the measurement of relative Fresnel reflected light intensity in a test fiber. Time delayed optical reflected pulses are obtained from a single nanosecond pulse injected at the input due to the difference in lengths of the reference and test fibers. The lengths of the different optical fibers have been measured with this technique with high resolution and fast response time. The measured results show that, the proposed technique has a comparable performance with the well-known length measurement systems.

Fresnel reflection, nanosecond pulse, optical fiber length measurement, time delayed pulses