Share Email Print
cover

Proceedings Paper • new

Temperature sensor with micro-ring assisted Mach-Zehnder filter
Author(s): Feng Sun; Jing Wan; Mingxian Guo; Zhaosong Wang; Jiangyun Miao
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A temperature sensor with micro ring-assisted Mach-Zehnder filter is presented. It has a micron size. A micro-ring cavity is coupled in one of the arms of the Mach-Zehnder interferometer, in which some temperature-sensitive liquid is injected into the cavity by using the microfluidic technique. The temperature change can be detected by analyzing the output spectrum of the sensor. In order to achieve the good filtering performances, the arm-length difference of common MachZehnder filters is usually the order of millimeter. While the M-Z arm-length difference of the temperature sensor presented in this paper is only about 10um. The sensor has good filtering performances. Its extinction ratio is 10dB and the 3dB bandwidth is less than 1nm. In addition, the resolution of the temperature detection is 0.1°C. Moreover, the temperature detection range of the proposed sensor can be adjusted by changing the refractive index of liquid in the micro ring cavity.

Paper Details

Date Published: 17 May 2019
PDF: 6 pages
Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 1117036 (17 May 2019); doi: 10.1117/12.2533888
Show Author Affiliations
Feng Sun, Nanjing Univ. of Posts and Telecommunications (China)
Jing Wan, Nanjing Univ. of Posts and Telecommunications (China)
Mingxian Guo, Nanjing Univ. of Posts and Telecommunications (China)
Zhaosong Wang, Nanjing Univ. of Posts and Telecommunications (China)
Jiangyun Miao, Nanjing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 11170:
14th National Conference on Laser Technology and Optoelectronics (LTO 2019)
Jianqiang Zhu; Weibiao Chen; Zhenxi Zhang; Minlin Zhong; Pu Wang; Jianrong Qiu, Editor(s)

© SPIE. Terms of Use
Back to Top