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High resolution temperature sensor based on frequency beating between twin DFB fiber lasers (JTu5A.8)

Presenter: Laurent Dusablon, Universite Laval

We present a high resolution temperature sensor using the beat frequency between the longitudinal modes of twin single-mode distributed feedback fiber lasers. Experimental results show a sensitivity of 1900 MHz/°C, leading to a precision of 0.0007 °C.

Authors:Laurent Dusablon, Universite Laval / Vincent Fortin, Universite Laval / Tommy Boilard, Universite Laval / Martin Bernier, Universite Laval / Pierre Galarneau, INO / François Babin, INO / Real Vallee, Universite Laval

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