Highly Sensitive Air-Gap Fiber Fabry–Pérot Interferometers Based on Polymer-Filled Hollow Core Fibers

Lee, Cheng‐Ling; Lee, Lin-Hung; Hwang, Hone‐Ene; Hsu, Jui‐Ming

doi:10.1109/lpt.2011.2174632

Cited by 76 publications

(27 citation statements)

References 12 publications

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“…PCF based temperature sensors have also attracted lot of interest recently, but they suffer from the disadvantages of large insertion loss, low fringe visibility and high cost. Hollow core fiber (HCF) is attracting more and more research interest, for example, as a means to incorporate an air-gap microcavity in the HCF to form an FPI for sensing applications [19][20][21]. In FPI based sensors there is a need to very precisely control the size of the microcavity in the order of micrometers, as small variations in the cavity length will result in significant changes to the actual spectrum achieved by comparison to the intended spectrum.…”

Section: Introductionmentioning

confidence: 99%

Hollow Core Fiber Based Interferometer for High-Temperature (1000 °C) Measurement

Liu¹,

Mei

et al. 2018

J. Lightwave Technol.

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Section: Introductionmentioning

confidence: 99%

Hollow Core Fiber Based Interferometer for High-Temperature (1000 °C) Measurement

Liu¹,

Mei

et al. 2018

J. Lightwave Technol.

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“…Diverse temperature sensors based on optical fibers have been projected over the last few years [13][14][15]. These optical sensing platforms are aligned to different techniques, such as FBG [16,17], Surface Plasmon Resonance (SPR) [18,19], side-polished fibers [20,21], photonic crystal fibers (PCF) [22][23][24], fiber FP interferometers [25][26][27][28][29], and tapered fibers [30,31]. Of the two types of fibers-glass and plastic optical fiber (POF) [32,33] is considered particularly advantageous owing to its excellent flexibility, easy handling, great numerical aperture, large diameter, and the fact that plastic is able to resist smaller bend radii more than glass [33,34].…”

mentioning

confidence: 99%

Optical Fiber Temperature Sensors and Their Biomedical Applications

Roriz

Silva

Frazão

et al. 2020

Sensors

130

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The use of sensors in the real world is on the rise, providing information on medical diagnostics for healthcare and improving quality of life. Optical fiber sensors, as a result of their unique properties (small dimensions, capability of multiplexing, chemical inertness, and immunity to electromagnetic fields) have found wide applications, ranging from structural health monitoring to biomedical and point-of-care instrumentation. Furthermore, these sensors usually have good linearity, rapid response for real-time monitoring, and high sensitivity to external perturbations. Optical fiber sensors, thus, present several features that make them extremely attractive for a wide variety of applications, especially biomedical applications. This paper reviews achievements in the area of temperature optical fiber sensors, different configurations of the sensors reported over the last five years, and application of this technology in biomedical applications.

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“…Herein, the positive sensitivity of the proposed sensor means that the mental is expanded by the high thermal effect to increase the air gap, causing the wavelength to shift to the long wavelength side. According to our previous work [5], a smaller air-gap d is associated with a larger 'O at the same T. Hence, a shorter d is more sensitive and a poorer result is obtained as d increases. From the experimental results, the sensitivity of the proposed AG-FFPI (2.140.32nm/qC) to temperature is about 405 times that of the fiber grating (~0.06nm/qC).…”

Section: Resultsmentioning

confidence: 67%