By Topic

An In-Fiber Mach–Zehnder Interferometer Based on Arc-Induced Tapers for High Sensitivity Humidity Sensing

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Min Shao ; Shaanxi Key Lab. of Opt. Inf. Technol., Northwestern Polytech. Univ., Xi'an, China ; Xueguang Qiao ; Haiwei Fu ; Na Zhao
more authors

A new humidity sensor based on in-fiber Mach-Zehnder interferometer (MZI) is proposed and demonstrated. The interferometer consists of two arc-induced ellipsoid fiber tapers and a section of single mode fiber between them. In our humidity experiment, the relative humidity sensitivity of MZI is -0.047 nm%RH in the range of 50%-90%RH. Temperature response characteristics of this MZI are also studied, and the temperature sensitivity is 0.067 nm/°C from 27 °C to 120°C. The experimental results show that the sensor has a linear response to humidity and temperature with linear fitting of 0.993 and 0.992, respectively. The MZI presented in this paper has advantages of low cost, easy fabrication, and high sensitivity, which can be a potential detector for the relative humidity measurement.

Published in:

Sensors Journal, IEEE  (Volume:13 ,  Issue: 5 )