An Integrated Fiber Michelson Interferometer Based on Twin-Core and Side-Hole Fibers for Multiparameter Sensing

Zhao, Yujia; Zhou, Ai; Guo, Huiyong; Zheng, Zhou; Xu, Yimin; Zhou, Ciming; Yuan, Libo

doi:10.1109/jlt.2017.2753256

Cited by 55 publications

(10 citation statements)

References 17 publications

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“…In 2018, Zhao Y J et al proposed and demonstrated a multi-parameter sensing-integrated fiber MI based on the cascade of an asymmetric twin-core fiber and side-hole fiber (SHF). The temperature sensitivity of the sensor was 10.37 pm/°C [ 33 ]. In 2021, Han Y et al proposed an ultra-short high-temperature fiber sensor based on SMF and a silicon microcap fabricated by simple splicing technology.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Measurement of a Fiber Probe Sensor Based on the Michelson Interferometer

Guo

Lian

Zhang

et al. 2021

Sensors

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In this paper, a fiber probe high-temperature sensor based on the Michelson Interferometer (MI) is proposed and experimentally verified. We used a fiber splicing machine to fabricate a taper of the single-mode fiber (SMF) end. The high order modes were excited at the taper, so that different modes were transmitted forward in the fiber and reflected by the end face of the fiber and then recoupled back to the fiber core to form MI. For comparison, we also coated a thin gold film on the fiber end to improve the reflectivity, and the reflection intensity was improved by 16 dB. The experimental results showed that the temperature sensitivity at 1506 nm was 80 pm/°C (100 °C~450 °C) and 109 pm/°C (450 °C~900 °C). The repeated heating and cooling processes showed that the MI structure had good stability at a temperature up to 900 °C. This fiber probe sensor has the advantages of a small size, simple structure, easy manufacturing, good stability, and broad application prospects in industrial and other environments.

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Section: Introductionmentioning

confidence: 99%

High-Temperature Measurement of a Fiber Probe Sensor Based on the Michelson Interferometer

Guo

Lian

Zhang

et al. 2021

Sensors

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“…Therefore, accurately measuring the temperature and refractive index is needed. Until now, in‐line fiber modal interferometers have been extensively investigated in Michelson interferometers, 5‐7 Mach‐Zehnder interferometers, 8‐10 Fabry‐Perot interferometers, 11‐13 and Sagnac interferometers, 14‐16 since their outstanding advantages of multi‐parameter measurements, high sensitivity, and corrosion resistance. Among these interferometers, optical fiber Mach‐Zehnder interferometer (MZI) has gained more attention.…”

Section: Introductionmentioning

confidence: 99%

Dual parameter in‐line fiber Mach‐Zehnder interferometer based on few‐mode fiber

Wang

Liu

et al. 2020

Micro & Optical Tech Letters

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This article proposes and demonstrates an in‐line fiber Mach‐Zehnder interferometer (MZI) based on few‐mode fiber for simultaneous measurement of temperature and refractive index. The Mach‐Zehnder interferometer is fabricated by fusion splicing a section few‐mode fiber (FMF) between hollow fiber (HF) microsphere cavity and single mode fiber (SMF) sphere. Since the different sensitivity responses of the two resonance dips in the transmission spectrum, the proposed sensor can simultaneous measurement of temperature and refractive index by monitoring the wavelength shifts of the two resonance dips. The experimental results show that the temperature sensitivities are 47.7 and 43.4 pm/°C within the temperature range from 30 to 80°C, respectively (red shift). The refractive index sensitivities are −21.41 and −30.11 nm/RIU when the refractive index changes from 1.330 to 1.394 RIU, respectively (blue shift). Furthermore, this sensor has excellent advantages of high extinction ratio, cost‐effective, ease of fabrication and compact structure, which make it competitive in the field of dual‐parameter sensing applications.

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“…Various optical fiber RI sensors have been reported based on fiber Bragg gating (FBG) [1], [2], long-period grating (LPG) [3], [4], tapered fiber [5]- [8], and Fabry-Perot interferometer (FPI) [9], [10]. Among them, fiber-based Mach-Zehnder (MZI) [11]- [14] and Michelson [15], [16] interferometers are extensively studied for RI sensing. When the MZI is formed by using a microcavity fabricated in an optical fiber [17], exceptional sensitivity can be obtained due to the tight optical confinement of the microcavity, for example, a recent study showed a sensitivity of over 10,000 nm/RIU (i.e., Refractive Index Unit) [18].…”

Section: Introductionmentioning

confidence: 99%

Dual Mach–Zehnder Interferometer Based on Side-Hole Fiber for High-Sensitivity Refractive Index Sensing

Śmietana

Wang

et al. 2019

IEEE Photonics J.

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A unique type of refractive index (RI) sensor is proposed using a dual Mach-Zehnder interferometer (MZI) structure based on side-hole fibers (SHFs). The MZI structure contains two single-mode fibers (SMFs), two coreless fiber (CLF) sections and an SHF section, which are spliced together in the order of SMF-CLF-SHF-CLF-SMF. The SMFs and the CLFs enable light lead in/out and beam splitting/combining, respectively. As a special feature of the structure, one hole of SHF is exposed for liquid filling and to form two MZIs as well. Three types of sensors are fabricated, namely S1, S2 and S3. Numerical simulation and experimental studies have been conducted to characterize the sensing performance. The RI sensitivity of the S1 using the ∼550 μm long SHF section reaches 14,000 nm/RIU. When a shorter SHF section is used in S2, the detectable RI range is broadened due to larger FSR. When the closed hole of SHF in S3 is filled with liquid to introduce the Vernier effect, the sensitivity can be further enhanced to over 44,000 nm/RIU (i.e., Refractive Index Unit), which corresponds to the detection limit at the level of 1.0 × 10 −5 RIU. This sensor design is original and easy to package, which gives it potential for label-free biochemical analyses.

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An Integrated Fiber Michelson Interferometer Based on Twin-Core and Side-Hole Fibers for Multiparameter Sensing

Cited by 55 publications

References 17 publications

High-Temperature Measurement of a Fiber Probe Sensor Based on the Michelson Interferometer

High-Temperature Measurement of a Fiber Probe Sensor Based on the Michelson Interferometer

Dual parameter in‐line fiber Mach‐Zehnder interferometer based on few‐mode fiber

Dual Mach–Zehnder Interferometer Based on Side-Hole Fiber for High-Sensitivity Refractive Index Sensing

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