Title

Microwave Interrogated Sapphire Fiber Michelson Interferometer for High Temperature Sensing

Abstract

We present, for the first time to our knowledge, a microwave interrogated sapphire fiber Michelson interferometer for high temperature sensing. By sending a microwave-modulated optical wave to a sapphire fiber Michelson interferometer, a high quality interference spectrum was reconstructed in the microwave domain with a fringe visibility exceeding 40 dB. The sensor showed good sensitivity, reversibility and stability in the temperature range of 100 °C-1400 °C. The proposed sensing configuration has a number of unique advantages including low dependence to the multimodal influences, high signal quality, relieved fabrication precision, and insensitivity to the background blackbody radiation when used in high temperature.

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Energy Technology Laboratory (U.S.)

Comments

The work was supported by the U.S. Department of Energy, National Energy Technology Laboratory, Morgantown, WV, USA, under Award DE-FE0001127 and Award DE-FE0012272.

Keywords and Phrases

Fibers; Interferometers; Michelson interferometers; Microwaves; Optical fiber fabrication; Optical fibers; Sapphire; Visibility; Black body radiation; Fringe visibilities; High-temperature sensing; Interference spectrum; Microwave domains; Microwave interferometer; Microwave Photonics; Sensing configuration; Temperature sensors; Optical carrier based microwave interferometer; Sapphire optical fiber

International Standard Serial Number (ISSN)

1041-1135; 1941-0174

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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