Ultra-Compact Optical Thermo-Hygrometer Based on Bilayer Micro-Cap on Fiber Facet

Ultra-Compact Optical Thermo-Hygrometer Based on Bilayer Micro-Cap on Fiber Facet
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基于光纤端面双层微帽的超紧凑光学温湿度计

DOI:
10.1109/lpt.2020.3013154
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发表时间:
2020-09
影响因子:
2.6
通讯作者:
Tieyi Yan
Tieyi Yan
中科院分区:
工程技术3区
文献类型:
--
作者:
Zhe Li;Yanxin Zhang;Wei-Gang Zhang;Lingxin Kong;Yang Yue;Tieyi Yan

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我们展示了一个超紧凑的光纤温湿度计的基础上的双层OA(光学粘合剂,一种聚合物)微帽覆盖整个SMF(单模光纤)方面。在制造过程中,两种类型的OA依次分配到光纤端面并分层,形成双层微帽,该微帽包含反射发射光的平面和2个球形界面。因此,将发生混合干扰。实验结果表明,在解调干涉相移时,湿度和温度的灵敏度分别达到−3.641deg/%RH和−4.527deg/°C,并可实现双参数测量。该光纤温湿度计具有集成化、稳定性好、灵敏度高等特点,能够满足尖端实验室的测量要求。
We demonstrate an ultra-compact optical fiber thermo-hygrometer on the base of a bilayer OA (Optical Adhesive, a kind of polymer) micro-cap covering the entire SMF (Single-Mode-Fiber) facet. In fabrication, two types of OA are dispensed to fiber facet successively and stratified distinctly forming the bilayer micro-cap, which contains a flat and 2 spherical interfaces reflecting emitted light. Hence, hybrid interference would occur. The experimental results show that the sensitivity for humidity and temperature reach −3.641deg/%RH and −4.527deg/°C when demodulating interference phase shift, and dual-parameter measurement could also be achieved. The proposed optical fiber thermo-hygrometer is integrated, robust and with high sensitivity, making it satisfy lab-on-tip measuring requirement.
DOI: 10.1016/j.sna.2018.12.005
发表时间: 2019
期刊: Sensors and Actuators A: Physical
影响因子: --
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