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5 October 2009Directional bend sensor based on asymmetric long period grating in photonic crystal fiber
A directional bend sensor is demonstrated based on a long period grating fabricated in photonic crystal fiber by
introducing geometric deformations in the cladding air holes with a CO2 laser. A bend sensitivity of 2.26 nm/m-1 is
achieved within the range of -5~+5 m-1.
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Long Jin, Wei Jin, Jian Ju, "Directional bend sensor based on asymmetric long period grating in photonic crystal fiber," Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035O (5 October 2009);