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Self-interference of long-period fibre grating and its application as temperature sensor

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2 Author(s)
Lee, B.H. ; Osaka Nat. Res. Inst., AIST, Osaka ; Nishii, J.

The authors describe self-interference fringes created in a single long-period fibre grating (LPG) formed in a double-cladding fibre, one end of which is coated with a metal film. The temperature-induced fringe-shift in the reflection spectrum of the proposed LPG device was measured to be 0.055 nm/°C with 0.9°C RMS deviation. Applications of such devices as filters and fine temperature sensors are expected

Published in:

Electronics Letters  (Volume:34 ,  Issue: 21 )