Title

High-Temperature Fiber-Optic Fabry-Perot Interferometric Pressure Sensor Fabricated by Femtosecond Laser

Abstract

In this Letter, we report on a fiber-optic Fabry-Perot interferometric pressure sensor with its external diaphragm surface thinned and roughened by a femtosecond laser. The laser-roughened surface helps to eliminate outer reflections from the external diaphragm surface and makes the sensor immune to variations in the ambient refractive index. The sensor is demonstrated to measure pressure in a higherature environment with lowerature dependence.

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Energy Technology Laboratory (U.S.)

Comments

The research work was supported by the Department of Energy (DOE)-National Energy Technology Laboratory (NETL) under the contract DE-FE0001127.

Keywords and Phrases

Fabry-Perot; Interferometric pressure sensors, Diaphragms; Fabry-Perot interferometers; Pressure sensors; Refractive index; Ultrashort pulses, Fiber optics

International Standard Serial Number (ISSN)

0146-9592

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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