Temperature-Independent Curvature Sensor Using FBG Cladding Modes Based on a Core Misaligned Splice
- 5 April 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 23 (12), 804-806
- https://doi.org/10.1109/lpt.2011.2138125
Abstract
A fiber-optic curvature sensor based on a core offset single-mode fiber (SMF) combined with a fiber Bragg grating (FBG) is presented. The FBG cladding modes are efficiently excited by the large core misalignment. The curvature of the fiber can be obtained by the ratio between the recoupled cladding mode power and the reflected core mode power. These measurements are independent from temperature variation.Keywords
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