Title

Optical Fiber Sensor Based on a Radio Frequency Mach-Zehnder Interferometer

Abstract

This Letter proposes an optical fiber radio frequency (RF) Mach-Zehnder interferometer (MZI) for sensing applications. An RF modulated laser source is injected into an optical fiber RF-MZI and collected by a photodiode. The interference pattern is observed in the RF domain by sweeping the frequency using a network analyzer. The proposed sensor has a linear response to applied temperature change. In addition, the sensitivity, observation frequency range, and the length of the sensing arm are discussed.

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Energy Technology Laboratory (U.S.)

Comments

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

Keywords and Phrases

Fiber-radio; Frequency ranges; Interference patterns; Linear response; Modulated lasers; Network analyzer; Optical fiber sensor; Radio frequencies; Sensing applications; Sensing arm; Temperature changes, Composite structures; Mach-Zehnder interferometers; Optical fibers, Radio waves

International Standard Serial Number (ISSN)

0146-9592

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2012 Optical Society of America, All rights reserved.

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