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.
Recommended Citation
T. Wei et al., "Optical Fiber Sensor Based on a Radio Frequency Mach-Zehnder Interferometer," Optics Letters, vol. 37, no. 4, pp. 647 - 649, Optical Society of America, Feb 2012.
The definitive version is available at https://doi.org/10.1364/OL.37.000647
Department(s)
Electrical and Computer Engineering
Sponsor(s)
National Energy Technology Laboratory (U.S.)
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.
Publication Date
01 Feb 2012
Comments
This work is supported by the Department of Energy (DOE)--National Energy Technology Laboratory (NETL) under contract DE-FE0001127.