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Enhanced optical sensitivity of molybdenum diselenide (MoSe 2 ) coated side polished fiber for humidity sensing

In this paper, a side-polished fiber (SPF) coated with molybdenum diselenide (MoSe ) is proposed, and its characteristic of relative humidity (RH) sensing is investigated. It is found in the experiment that an enhancement in RH sensitivity (0.321 dB/%RH) can be achieved in a very wide RH range of 32...

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Bibliographic Details
Published in:Optics express 2017-05, Vol.25 (9), p.9823-9833
Main Authors: Ouyang, Tenghui, Lin, Limin, Xia, Kai, Jiang, Mengjiang, Lang, Yuwei, Guan, Heyuan, Yu, Jianhui, Li, Dongquan, Chen, Guanglei, Zhu, Wenguo, Zhong, Yongchun, Tang, Jieyuan, Dong, Jiangli, Lu, Huihui, Luo, Yunhan, Zhang, Jun, Chen, Zhe
Format: Article
Language:English
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Summary:In this paper, a side-polished fiber (SPF) coated with molybdenum diselenide (MoSe ) is proposed, and its characteristic of relative humidity (RH) sensing is investigated. It is found in the experiment that an enhancement in RH sensitivity (0.321 dB/%RH) can be achieved in a very wide RH range of 32%RH to 73%RH for the proposed MoSe coated SPF (MoSe CSPF). It is also shown that the MoSe CSPF has a rapid response of 1s and recovery time of 4s, which makes the sensor capable of monitoring human breath. The experimental results suggest MoSe has a promising potential in photonics applications such as all-fiber optic humidity sensing networks.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.25.009823