Time-division-multiplexed optical fibre strain-sensor using subcarrier interferometry
Abstract
A high-resolution quasi-distributed strain sensor employing subcarrier interferometry and time-division multiplexing is reported. The system tracks a null in the subcarrier frequency response of a fibre network containing reflective discontinuities. Time gating selects the sensing section. A resolution better than 2Oµm over 5m lengths of fibre has been obtainedSimilar works
This paper was published in Southampton (e-Prints Soton).
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