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Humidity sensor based on twin-hole fiber filled with black phosphorus
Author(s): Min Shao; Liang Han; Haonan Sun; Yinggang Liu; Haiwei Fu
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Paper Abstract

An in-line fiber Mach-Zehnder interferometer (MZI) based on twin-hole fiber for humidity sensing was proposed and experimentally demonstrated. The twin-hole fiber was filled in black phosphorus (BP) by capillary absorption method, and then was sandwiched in between two single mode fibers (SMFs) to form intermodal interference. Utilizing the sensitivity of BP to ambient humidity, the MI could realize humidity measurement. Experiment results reveal that the interference intensity changes in the RH range of 20-80%RH, and the sensitivity was -0.028 dB/%RH. This sensor has great potential for application in chemical and biology fields.

Paper Details

Date Published: 20 December 2019
PDF: 4 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112093H (20 December 2019); doi: 10.1117/12.2548844
Show Author Affiliations
Min Shao, Xi'an Shiyou Univ. (China)
Liang Han, Xi'an Shiyou Univ. (China)
Haonan Sun, Xi'an Shiyou Univ. (China)
Yinggang Liu, Xi'an Shiyou Univ. (China)
Haiwei Fu, Xi'an Shiyou Univ. (China)


Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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