DocumentCode
1761135
Title
Highly Sensitive Tapered Fiber Mach–Zehnder Interferometer for Liquid Level Sensing
Author
Jui-Ming Hsu ; Cheng-Ling Lee ; Hun-Pin Chang ; Wen Cheng Shih ; Chai-Ming Li
Author_Institution
Dept. of Electro-Opt. Eng., Nat. United Univ., Miaoli, Taiwan
Volume
25
Issue
14
fYear
2013
fDate
41470
Firstpage
1354
Lastpage
1357
Abstract
A low cost, simple, and in-line liquid level sensor based on a dual-tapered fiber Mach-Zehnder interferometer (DTFMZI) is proposed. In this letter, the configuration, operation principle, experimental results, and discussion for the proposed fiber-optic liquid level sensor are investigated. Experimental results show that the proposed DTFMZI sensor is highly sensitive and linear in the response; a good sensitivity of ~2.8 nm/cm within the whole measurement range of 10 cm is achieved in this letter.
Keywords
Mach-Zehnder interferometers; fibre optic sensors; level measurement; DTFMZI sensor; dual-tapered fiber Mach-Zehnder interferometer; fiber-optic liquid level sensor; highly sensitive tapered fiber Mach-Zehnder interferometer; in-line liquid level sensor; linear response; measurement sensitivity; operation principle; Optical fiber sensors; fiber Mach–Zehnder interferometer (FMZI); fiber-optics component; optical interferometry;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2013.2265738
Filename
6527984
Link To Document