Investigation of a Side-Polished Fiber MZI and Its Sensing Performance

Zhang, Ping; Liu, Bin; Liu, Juan; Xie, Chengfeng; Wan, Shengpeng; He, Xingdao; Zhang, Xinpu; Wu, Qiang

doi:10.1109/jsen.2020.2972929

Cited by 25 publications

(6 citation statements)

References 31 publications

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“…A section of standard Corning SMF-28 (9/125 µm core/cladding diameter) is polished using a self-assembled fiber side polishing system [40]. In the system, the residual diameter of the polished fiber is calibrated by real-time measuring the output optical power of the fiber during the side-polishing process.…”

Section: A the Tsp Fiber Structure For Ri Measurementmentioning

confidence: 99%

Tapered Side-Polished Microfibre Sensor for High Sensitivity hCG Detection

Luo

Liu

et al. 2022

IEEE Sensors J.

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Section: A the Tsp Fiber Structure For Ri Measurementmentioning

confidence: 99%

Tapered Side-Polished Microfibre Sensor for High Sensitivity hCG Detection

Luo

Liu

et al. 2022

IEEE Sensors J.

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“…8(n)) [171], waist-enlarged SMS fiber structures (Fig. 8(o-p)) [172][173], a spiral microstructure SMS [174], in-line tapers [175][176][177] and a side-polished fiber [178].…”

Section: E Combinations Of Sms Fiber Structuresmentioning

confidence: 99%

Singlemode-Multimode-Singlemode Fiber Structures for Sensing Applications—A Review

Liu

et al. 2021

IEEE Sensors J.

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125

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A singlemode-multimode-singlemode (SMS) fiber structure consists of a short section of multimode fiber fusionspliced between two SMS fibers. The mechanism underpinning the operation of an SMS fiber structure is multimode interference and associated self-imaging. SMS structures can be used in a variety of optical fiber systems but are most commonly used as sensors for a variety of parameters, ranging from macro-world measurands such as temperature, strain, vibration, flow rate, RI and humidity to the micro-world with measurands such as proteins, pathogens, DNA, and specific molecules. While traditional SMS structures employ a short section of standard multimode fiber, a large number of structures have been investigated and demonstrated over the last decade involving the replacement of the multimode fiber section with alternatives such as a hollow core fiber or a tapered fiber. The objective of replacing the multimode fiber has most often been to allow sensing of different measurands or to improve sensitivity. In this paper, several different categories of SMS fiber structures, including traditional SMS, modified SMS and tapered SMS fiber structures are discussed with some theoretical underpinning and reviews of a wide variety of sensing examples and recent advances. The paper then summarizes and compares the performances of a variety of sensors which have been published under a number of headings. The paper concludes by considering the challenges faced by SMS based sensing schemes in terms of their deployment in real world applications and discusses possible future developments of SMS fiber sensors.

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“…In-fiber Mach-Zehnder interferometers (MZIs) have been studied recently for various sensing applications such as the sensing of strain [1][2][3][4][5], temperature [6], pH [7,8], pressure [9,10], curvature [11,12], humidity [13], refractive index [14][15][16], and magnetic field [17,18]. An in-fiber MZI can be manufactured with multiple methods, for instance, using down-tapering structures [3], up-tapering structures [1], core-offset splicing structures [14] or simply splicing fibers with mismatched cores [4].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, an optical MZI sensor based on a homemade few mode fiber (FMF) is proposed for strain and temperature sensing [2] as well as for the measurement of underwater pressure and temperature [10]. Special fibers such as a side-polished fiber [16], a microfiber [9], and a ring-core fiber [12] are utilized in the MZI to discriminate temperature from the refractive index, pressure, and curvature, respectively. The third type is the cascaded structure which cascades two or more fibers for simultaneous sensing.…”

Section: Introductionmentioning

confidence: 99%

Strain and Temperature Discrimination Based on a Mach-Zehnder Interferometer With Cascaded Single Mode Fibers

Xiao

Sun

et al. 2022

Photonic Sens

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An in-fiber Mach-Zehnder interferometer is proposed for the discrimination of strain and temperature. The sensor is based on two cascaded standard single mode fibers using three peanut tapers fabricated by simple splicing. The cascaded structure excites more frequency components, which induce four sets of interference dips in the transmission spectrum. One set of the spectrum dips have different sensitivities to temperature and strain from those of the other three. The sensor can discriminate strain and temperature by monitoring the wavelength shifts of two spectrum dips. Repeated experiments are taken both for strain and temperature increasing and decreasing scenarios. Experimental results show that Dip 1 has an average strain sensitivity of −0.911 pm/µε and an average temperature sensitivity of 49.98 pm/°C. The strain sensitivity for Dip 2 is negligible and its average temperature sensitivity is 60.52 pm/°C The strain and temperature resolutions are ±3.82 µε and ±0.33 °C.

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Investigation of a Side-Polished Fiber MZI and Its Sensing Performance

Cited by 25 publications

References 31 publications

Tapered Side-Polished Microfibre Sensor for High Sensitivity hCG Detection

Tapered Side-Polished Microfibre Sensor for High Sensitivity hCG Detection

Singlemode-Multimode-Singlemode Fiber Structures for Sensing Applications—A Review

Strain and Temperature Discrimination Based on a Mach-Zehnder Interferometer With Cascaded Single Mode Fibers

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