Work

FFPI-FBG hybrid sensor to measure the thermal expansion and thermo-optical coefficient of a silica-based fiber at cryogenic temperatures

Year: 2015

Type: article

Abstract: In this Letter, a sensor consisting of a fiber Bragg grating (FBG) and a fiber Fabry-Perot interferometer (FFPI) sensor is developed to measure the coefficient of thermal expansion (CTE) and the thermo-optical coefficient (TOC) of a silica-based optical fiber at cryogenic temperatures.The FFPI is fabricated by welding together two acid-etched fibers.The temperature performance of the FFPI-FBG hybrid sensor is studied in the temperature range of 30-273 K.The CTE and TOC of the optical fiber at cryogenic temperatures are derived analytically and verified by experiments.

Source: Chinese Optics Letters

DOI: 10.3788/col201513.100601

Authors: Litong Li Litong Li, Dongsheng Zhang Dongsheng Zhang, Xiaoyan Wen Xiaoyan Wen, Sisi Peng Sisi Peng

Institution: Wuhan University of Technology

Language: English

Topic: Advanced Fiber Optic Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2201866140

FWCI: 0.839

Cites: 1

Cited by: 21

Related to: 10