Photonic Crystal Fiber Strain Sensor Based on Modified Mach–Zehnder Interferometer
Lianzhe HuChi Chiu ChanXinyong DongY. P. WangPeng ZuWing C. WongWenwen QianTao Li
Abstract
In this paper, a novel strain sensor is proposed and demonstrated by employing a modified photonic crystal fiber (PCF)-based Mach-Zehnder interferometer, in which a collapsed region is introduced at the middle point of the PCF to improve the extinction ratio. Experimental results show that this proposed structure has a high sensitivity of 11.22 over a range of 1.28 and high-temperature stability.
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