Large measurement range and high sensitivity temperature sensor with FBG cascaded Mach-Zehnder interferometer

Tong, Rui-jie; Zhao, Yong; Hu, Haifeng; Qu, Jifeng

doi:10.1016/j.optlastec.2019.106034

Cited by 32 publications

(11 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For single parameter sensing, cascaded FBG and MZI sensors can be used to realize temperature sensing. For example, Tong et al designed a high-sensitivity and wide measurement-range temperature MZI sensor based on three parts: a light lead-in fiber, a light lead-out fiber, and an offset fiber, and PDMS coated on the core-offset region ( Figure 1 e) [ 62 ]. Meanwhile, FBG was combined to enlarge the measurement range.…”

Section: Ofss For Single-parameter Sensing and Measurement In Tspmentioning

confidence: 99%

“…( d ) Diagrammatic sketch of the PDMS-coated microfiber sensors [ 60 ]. ( e ) The sensing probe with cascaded MZI and FBG [ 62 ]. ( f ) Schematic of temperature measurement system [ 63 ].…”

Section: Ofss For Single-parameter Sensing and Measurement In Tspmentioning

confidence: 99%

“…For microfiber sensors, due their thinner diameter, it is more necessary to encapsulate, in which polymers and capillaries are also used. Xia et al encapsulated an MMZI sensor working at a dispersion turning point by PDMS ( Figure 7 d) with temperature sensitivity of about 38 nm/°C [ 62 ]. Wang et al encapsulated part of the microfiber in the capillary and filled it with deionized water ( Figure 7 e) [ 133 ].…”

Section: Practical Application Of Optical Fiber Sensors In Ocean Obse...mentioning

confidence: 99%

“…( c ) Encapsulation method of FPI sensors [ 131 ]. ( d , e ) Encapsulation method of MMZI sensors [ 62 , 133 ].…”

Section: Practical Application Of Optical Fiber Sensors In Ocean Obse...mentioning

confidence: 99%

See 3 more Smart Citations

Review of Optical Fiber Sensors for Temperature, Salinity, and Pressure Sensing and Measurement in Seawater

Liang

Wang

Zhang

et al. 2022

Sensors

View full text Add to dashboard Cite

Temperature, salinity, and pressure (TSP) are essential parameters for the ocean. Optical fiber sensors (OFSs) have rapidly come into focus as an ocean detection technology in recent years due to their advantages of electromagnetic interference, light weight, low cost, and no waterproof requirement. In this paper, the most recently developed TSP sensors for single parameter and multi-parameter TSP sensing and measurement based on different OFSs are reviewed. In addition, from the practical point of view, encapsulation methods that protect fibers and maintain the normal operation of OFSs in seawater, and the response time of the OFS, are addressed. Finally, we discuss the prospects and challenges of OFSs used in marine environments and provide some clues for future work.

show abstract

Section: Ofss For Single-parameter Sensing and Measurement In Tspmentioning

confidence: 99%

“…( d ) Diagrammatic sketch of the PDMS-coated microfiber sensors [ 60 ]. ( e ) The sensing probe with cascaded MZI and FBG [ 62 ]. ( f ) Schematic of temperature measurement system [ 63 ].…”

Section: Ofss For Single-parameter Sensing and Measurement In Tspmentioning

confidence: 99%

Section: Practical Application Of Optical Fiber Sensors In Ocean Obse...mentioning

confidence: 99%

“…( c ) Encapsulation method of FPI sensors [ 131 ]. ( d , e ) Encapsulation method of MMZI sensors [ 62 , 133 ].…”

Section: Practical Application Of Optical Fiber Sensors In Ocean Obse...mentioning

confidence: 99%

See 2 more Smart Citations

Review of Optical Fiber Sensors for Temperature, Salinity, and Pressure Sensing and Measurement in Seawater

Liang

Wang

Zhang

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…Fiber optics sensors (FOS) are attractive to the scientific community and industry due to their intrinsic properties, such as small size, lightweight, corrosion resistance, immunity to electromagnetic interference, and high sensitivity. Several FOS have been assembled using specialty fibers such as photonic crystal fiber (PCF) [1,2], capillary hollow-core fiber (CHCF) [3], microfiber [4], D-shaped fiber [5], fiber Bragg grating (FBG) [6,7], long-period fiber grating (LPBG) [8], tilted fiber Bragg grating (TFBG) [9], and multicore optical fiber [10]. Recently, the fabrication of FOS using CHCF has been increased due to its easy fabrication and low-cost.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Enhancement of Curvature Fiber Sensor Based on Polymer-Coated Capillary Hollow-Core Fiber

Herrera-Piad

Hernández-Romano

May-Arrioja

et al. 2020

Sensors

View full text Add to dashboard Cite

In this paper, we propose and experimentally demonstrate a simple technique to enhance the curvature sensitivity of a bending fiber optic sensor based on anti-resonant reflecting optical waveguide (ARROW) guidance. The sensing structure is assembled by splicing a segment of capillary hollow-core fiber (CHCF) between two single-mode fibers (SMF), and the device is set on a steel sheet for measuring different curvatures. Without any surface treatment, the ARROW sensor exhibits a curvature sensitivity of 1.6 dB/m−1 in a curvature range from 0 to 2.14 m−1. By carefully coating half of the CHCF length with polydimethylsiloxane (PDMS), the curvature sensitivity of the ARROW sensor is enhanced to −5.62 dB/m−1, as well as an increment in the curvature range (from 0 to 2.68 m−1). Moreover, the covered device exhibits a low-temperature sensitivity (0.038 dB/°C), meaning that temperature fluctuations do not compromise the bending fiber optic sensor operation. The ARROW sensor fabricated with this technique has high sensitivity and a wide range for curvature measurements, with the advantage that the technique is cost-effective and easy to implement. All these features make this technique appealing for real sensing applications, such as structural health monitoring.

show abstract

A comparative study on polymer and metals coated TFBG temperature sensor: coating thickness impact

Alshaikhli

2024

Appl. Phys. A

View full text Add to dashboard Cite

Large measurement range and high sensitivity temperature sensor with FBG cascaded Mach-Zehnder interferometer

Cited by 32 publications

References 23 publications

Review of Optical Fiber Sensors for Temperature, Salinity, and Pressure Sensing and Measurement in Seawater

Review of Optical Fiber Sensors for Temperature, Salinity, and Pressure Sensing and Measurement in Seawater

Sensitivity Enhancement of Curvature Fiber Sensor Based on Polymer-Coated Capillary Hollow-Core Fiber

A comparative study on polymer and metals coated TFBG temperature sensor: coating thickness impact

Contact Info

Product

Resources

About