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Sub-mK and nano-strain discrimination using frequency stabilized lasers and polarization maintaining π-shifted fibre Bragg gratings

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Abstract

We report on a sensing system which discriminates strain and temperature with 5.5 nano-strain and 0.39 mK resolutions respectively. The system deploys frequency stabilized integrated InP-based lasers and a heterodyne-based read-out system.

© 2020 The Author(s)

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