Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement

Flockhart, G M H and Cranch, G A and Kirkendall, C K (2006) Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement. Electronics Letters, 42 (7). pp. 390-391. ISSN 0013-5194

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    Abstract

    High resolution quasi-static and dynamic curvature measurements are made by differential interferometric phase measurement of fibre Bragg gratings in separate cores of a multi-core fibre. A DC curvature stability of 1 X 10(-3) m(-1) and an AC curvature resolution of 1 X 10(-4) m(-1)/Hz(1/2) are reported.