Abstract
A birefringent structured side-holes photonic crystal fiber (PCF) with high sensitivity is designed for pressure sensing. Simulation results show that the birefringence and relevant sensitivity are strongly influenced by the air-holes’ sizes and the distance between the fiber core and side-hole. The modal birefringence and the polarimetric pressure sensitivity can be up to 3.943×10−3 and −3.67×10−5 MPa−1 at 1.55 μm, respectively. The proposed side-holes PCF possesses promising applications for pressure sensing.
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