Demultiplexing of fibre Bragg grating temperature and strain sensors

Brady, G.P.; Hope, S.; Lobo Ribeiro, Antonio B.; Webb, D.J.; Reekie, L.; Archambault, J.L.; Jackson, D.A.

http://hdl.handle.net/10284/7923

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Authors

Brady, G.P.

Hope, S.

Lobo Ribeiro, Antonio B.

Abstract(s)

We describe a demultiplexing scheme for fibre optic Bragg grating sensors in which signal recovery is achieved by locking each sensor grating to a corresponding receiver grating. As a demonstration, the technique is applied to strain and temperature sensing, achieving a resolution of 3.0 με and 0.2°C, respectively.