In-Fiber Collimator-Based Fabry-Perot Interferometer with Enhanced Vibration Sensitivity

In-Fiber Collimator-Based Fabry-Perot Interferometer with Enhanced Vibration Sensitivity

A simple vibration sensor is proposed and demonstrated based on an optical fiber Fabry-Perot interferometer (FPI) with an in-fiber collimator. The device was fabricated by splicing a quarter-pitch graded index fiber (GIF) with a section of a hollow-core fiber (HCF) interposed between single mode fib...

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Bibliographic Details
Main Authors: Bin Du, Xizhen Xu, Jun He, Kuikui Guo, Wei Huang, Fengchan Zhang, Min Zhang, Yiping Wang
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Sensors
Subjects:
fiber vibration sensor
graded index fiber
Fabry-Perot interferometer
Online Access:https://www.mdpi.com/1424-8220/19/2/435

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