Lab-on-fiber: laser-induced micro-cavity for a relative humidity measurement

doi:10.1364/OL.500699

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	Lab-on-fiber: laser-induced micro-cavity for a relative humidity measurement
	J. Wang, Y. Kou, A. Wang, J. Hao, C. Niu, H. Jiang, H. Meng, W. Sun and T. Geng
	2023
发表期刊	Optics Letters
ISSN	01469592
卷号	48 期号:20 页码:5261-5264
摘要	The lab-on-fiber design philosophy is the foundation for creating high-performance integrated fiber sensors. Hence, this Letter proposes an ultra-compact Fabry–Perot interferometer (FPI) based on a laser-induced micro-cavity (LIMC-FPI) on a fiber end for measuring relative humidity. To our knowledge, this novel approach, named the fiber-end pho-topolymerization (FEP) technique, is applied to create a micro-cavity. Specifically, a pair of humidity-sensitive polymer pillars and a resin end cap obtained by FEP are integrated to generate the cavity. As the ambient humidity changes, the pillars lengthen or shorten, resulting in the spectral evolution of the LIMC-FPI. A typical humidity sensitivity of 0.18 nm/%RH is obtained experimentally. For monitoring the human breathing process, the LIMC-FPI is responsive in the breathing frequency range of 0.2 to 0.5 Hz, allowing a response and recovery time of less than 0.388 s and 1.171 s, respectively. This work introduces a fresh and cost-effective approach for developing lab-on-fiber concept-based sensors. © 2023 Optica Publishing Group.
DOI	10.1364/OL.500699
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67935
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Wang, Y. Kou, A. Wang, J. Hao, C. Niu, H. Jiang, H. Meng, W. Sun and T. Geng. Lab-on-fiber: laser-induced micro-cavity for a relative humidity measurement[J]. Optics Letters,2023,48(20):5261-5264.
APA	J. Wang, Y. Kou, A. Wang, J. Hao, C. Niu, H. Jiang, H. Meng, W. Sun and T. Geng.(2023).Lab-on-fiber: laser-induced micro-cavity for a relative humidity measurement.Optics Letters,48(20),5261-5264.
MLA	J. Wang, Y. Kou, A. Wang, J. Hao, C. Niu, H. Jiang, H. Meng, W. Sun and T. Geng."Lab-on-fiber: laser-induced micro-cavity for a relative humidity measurement".Optics Letters 48.20(2023):5261-5264.

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