This review presents an overview of recent progress in anti-resonant hollow-core fibers for sensing applications. Both regular and irregular-shaped
In 2021, Yineng Pang et al. proposed a wearable optical fiber sensor based on SMS fiber structure , which was fixed on the abdomen. In 2022 Cong Zhao et al. proposed an optical fiber
An optical fiber humidity sensor combined with a new type of moisture-sensitive material is proposed and experimentally demonstrated. The structure of the sensor is based on two single-mode
Fiber-optic humidity sensors have attracted widespread attention from scholars due to their high-measurement accuracy, anti-electromagnetic interference, multiplexing, and distributed sensing.
By sensing the environmental humidity variation close to nose and mouth or human body, we can realize the detection of human breathing frequency and the non-contact motion monitoring of
In conclusion, we proposed an AR optical fiber humidity sensor based on gelatin coating in this paper, and conduct the humidity response of the system. After that, based on this optical fiber
Abstract: In this paper, a graphene oxide (GO) composite film-coated humidity sensor is proposed based on the hollow core fiber (HCF). A segment of the HCF is spliced between two segments of the single
These parameters include CO 2 concentration, humidity, temperature and pressure. Fibre optic sensors (FOSs) have emerged as promising candidates for this application due to their intrinsic safety in
An optical fiber Fabry–Perot interferometer (FPI) is constructed for relative humidity measurement by fusion splicing a short hollow core fiber (HCF)
We report an optical fiber humidity sensor based on the anti-resonance (AR) structure of single mode fiber (SMF) − hollow core fiber (HCF) − SMF coated with gelatin film.
The HPMC hydrogel with hydrophilicity, natural grid-like nanostructure and biocompatibility is an effective humidity-sensitive material for optical fiber RH sensor and has great application
In this paper, we propose an optical fiber humidity sensor coated with gelatin film based on AR effect, which can be applied in human breath monitoring and non-contact skin detection to
Hollow-core optical fibers hold good potential to create an ideal transmission environment akin to free space, characterized by low dispersion, low nonlinearity, low time delay, and low loss,
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The present paper reports the current trends of optical fiber humidity sensors. The evolution of optical structures developed towards humidity sensing,
The sensor has the advantages of wide humidity response range, fast response time, resistance to temperature interference and high stability. Our work provides a promising platform for
Journals > Photonic Sensors > Volume 15 > Issue 2 > Page 250202 > Article Photonic Sensors Vol. 15, Issue 2, 250202 (2025) Humidity Sensor Based on a Hollow Core Fiber Anti-Resonant Reflection
The proposed sensor has the advantages of the simple structure, easy fabrication, good stability, and high performance, which can be applied to marine climate detection, tunnel air humidity detection,
This study proposes a fiber-optic vernier sensor composed of two Fabry-Perot interferometers (FPIs) for measuring temperature and humidity. Temperatur
<p>In this paper, a graphene oxide (GO) composite film-coated humidity sensor is proposed based on the hollow core fiber (HCF). A segment of the HCF is spliced between two segments of the single
Fierce Sensors is the reimagined editorial voice of Sensors Converge, empowering design engineers with the only dedicated sensors resource since 1985.
Specialty fibers have enabled a wide range of sensing applications. Particularly, with the recent advancement of anti-resonant effects, specialty fibers
Abstract: Polymethyl methacrylate (PMMA) microsphere-based Fabry-Perot (F-P) fiber-optic humidity sensor is proposed. A hollow-core fiber (HCF) is spliced with a single-mode fiber
Keywords: Humidity sensing; hollow core fiber; anti-resonant refection optical waveguide; graphene oxide Citation: Ao CHENG, Chaoqi WANG, Jiadong XU, Peiqing ZHANG, Yu ZHENG, and Shixun
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