Ultrasensitive liquid refractometer based on a Mach-Zehnder micro-cavity in optical fibre fabricated by femtosecond laser-induced water breakdown

Liu, Yi; Sun, H.F.; Li, Yan; Qu, Shiliang

doi:10.1080/09500340.2016.1198500

Cited by 10 publications

(1 citation statement)

References 23 publications

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“…In particular, Mach-Zehnder interferometer (MZI) sensors have attracted considerable attention for measuring various physical and chemical parameters, such as strain [2], curvature [3], temperature [4] and refractive index (RI) [5], etc. Most MZI sensors are based on fiber Bragg gratings (FBGs) [5], long-period gratings [6,7], surface plasmon resonance [8], femtosecond laser micromachining [9] and multimode fiber cladding etching [10], etc. Although these methods may provide high sensitivity, the fiber sensors are typically fragile and have a low manufacturing cost [11].…”

Section: Introductionmentioning

confidence: 99%

Research on dual-parameter optical fiber sensor based on thin-core fiber and spherical structure

Tong¹,

Wang²,

Zhang³

et al. 2018

Laser Phys.

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A novel dual-parameter optical fiber sensor is proposed and experimentally demonstrated. The proposed sensor is based on a fiber in-line Mach-Zehnder interferometer, which is fabricated by sandwiching a section of thin-core fiber between two spherical structures made of single-mode fibers. The transmission spectrum exhibits the response of the interference between the core and the different cladding modes. Due to the different wavelength shifts of the two selected dips, the simultaneous measurement of temperature and the surrounding refractive index can be achieved. The measured temperature sensitivities are 0.067 nm/°C and 0.050 nm/°C, and the refractive index sensitivities are −119.9 nm/RIU and −69.71 nm/RIU, respectively. In addition, the compact size, simple fabrication and cost-effectiveness of the fiber sensor are also advantages.

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Section: Introductionmentioning

confidence: 99%

Research on dual-parameter optical fiber sensor based on thin-core fiber and spherical structure

Tong¹,

Wang²,

Zhang³

et al. 2018

Laser Phys.

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A Comprehensive Review of Optical Fiber Refractometers: Toward a Standard Comparative Criterion

Urrutia

Villar

Zubiate

et al. 2019

Laser & Photonics Reviews

142

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Thanks to the peculiarities of optical fiber and its ability to be combined with nanotechnology, precise and accurate measurements of the changes in optical properties (i.e., refractive index) of the medium surrounding the fiber are becoming possible with a high degree of performance. Thus, optical fiber sensors (OFSs) are increasingly finding applications in biochemistry and biomedicine. Here, all types of optical fiber refractometers are covered, and they are classified into three main groups: interferometers, grating‐based structures, and resonance‐based structures (the resonance is induced by coating the optical fiber sensor with a thin film). The performance of these different structures is compared by means of the most common parameters: sensitivity, full width at half minimum or maximum, figure of merit, and quality factor. The aim here is to provide a reliable and easy‐to‐use tool to compare the performance of the most recent developments on fiber optic refractometers.

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Review of femtosecond laser machining technologies for optical fiber microstructures fabrication

Chen

Zhao

2022

Optics & Laser Technology

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Ultrasensitive liquid refractometer based on a Mach-Zehnder micro-cavity in optical fibre fabricated by femtosecond laser-induced water breakdown

Cited by 10 publications

References 23 publications

Research on dual-parameter optical fiber sensor based on thin-core fiber and spherical structure

Research on dual-parameter optical fiber sensor based on thin-core fiber and spherical structure

A Comprehensive Review of Optical Fiber Refractometers: Toward a Standard Comparative Criterion

Review of femtosecond laser machining technologies for optical fiber microstructures fabrication

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