Simultaneous measurement of refractive index and temperature using thinned fiber based Mach–Zehnder interferometer

Li, Lecheng; Xia, Li; Xie, Zhenhai; Liao, Zhiyi; Tian, Feng; Liu, Deming

doi:10.1016/j.optcom.2012.05.060

Cited by 37 publications

(13 citation statements)

References 11 publications

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“…Different types of optical setups have been proposed for sensing physical and chemical parameters such as pressure, temperature, curvature, refractive index and torsion [ 1 , 2 , 3 , 4 , 5 ]. Many of these are based on the Mach-Zehnder interferometer (MZI) [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ], because, it has a simple optical configuration, low cost, high sensitivity and compact size. For this reason, several MZIs have been implemented by using different fabrication techniques such as; optical fiber tapers [ 6 , 7 ], thin core fibers (TCF) [ 8 ], long period grating cascade structures [ 9 , 10 ], Photonic crystal fiber (PCF) [ 11 , 12 , 13 ] and by splicing optical fibers with a core offset section [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

A Core-Offset Mach Zehnder Interferometer Based on A Non-Zero Dispersion-Shifted Fiber and Its Torsion Sensing Application

Huerta-Mascotte

Sierra-Hernández

Mata-Chavez

et al. 2016

Sensors

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In this paper, an all-fiber Mach-Zehnder interferometer (MZI) based on a non-zero dispersion-shifted fiber (NZ-DSF) is presented. The MZI was implemented by core-offset fusion splicing one section of a NZ-DSF fiber between two pieces of single mode fibers (SMFs). Here, the NZ-DSF core and cladding were used as the arms of the MZI, while the core-offset sections acted as optical fiber couplers. Thus, a MZI interference spectrum with a fringe contrast (FC) of about 20 dB was observed. Moreover, its response spectrum was experimentally characterized to the torsion parameter and a sensitivity of 0.070 nm/° was achieved. Finally, these MZIs can be implemented in a compact size and low cost.

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Section: Introductionmentioning

confidence: 99%

A Core-Offset Mach Zehnder Interferometer Based on A Non-Zero Dispersion-Shifted Fiber and Its Torsion Sensing Application

Huerta-Mascotte

Sierra-Hernández

Mata-Chavez

et al. 2016

Sensors

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“…Fiber optical refractive index (RI) sensors [1][2][3] have been exploited extensively for the advantages of compact size, remotesensing, capability of multiplexing, could work under the severe poisonous and electromagnetic environment. Fiber Bragg grating (FBG) based RI sensors have attracted more attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Refractive index measurement based on fiber Bragg grating connected with a multimode fiber core

Shao

Qiao

Jiasurname

et al. 2015

Optics Communications

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“…Interferometric fiber optic sensors have been widely studied due to their excellent RI sensitivity and moderate temperature sensitivity [1,2]. Diverse MachZehnder interferometers are constructed using structures such as core offset [3,4], tapered fiber [5], and multimode microfiber [6] for simultaneous measurement of temperature and RI. Various configurations of MZI combined with fiber Bragg grating have also been explored to measure ambient This refractive index and temperature simultaneously, including peanut-shape and core-offset structure [7], and only coreoffset MZI [8].…”

Section: Introductionmentioning

confidence: 99%

Bragg Grating Embedded in Mach-Zehnder Interferometer for Refractive Index and Temperature Sensing

Ahmed

Ahsani

Saad

et al. 2016

IEEE Photon. Technol. Lett.

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Abstract-Fiber Bragg grating (FBG) embedded in a microfiber Mach-Zehnder interferometer (MZI) is presented for sensing multi-parameters such as temperature and refractive index. The MZI is constructed by splicing a short length of 40 µm diameter microfiber between standard single mode fibers. A millimeter long FBG is then written in the microfiber using direct point-by-point ultrafast laser inscription method. The microfiber MZI shows moderate sensitivity to ambient refractive index and temperature changes. In contrast, the microfiber FBG is insensitive to ambient refractive index change while it exhibits typical sensitivity to temperature variation. These distinct characteristics of the FBG and MZI sensors enable simultaneous measurement of refractive index and temperature, and temperature compensation in ambient refractive index measurement.Index Terms-Miniature microfiber Mach-Zehnder interferometer, microfiber Bragg grating, ultrafast laser inscription, simultaneous temperature and refractive index measurement, temperature compensated refractive index measurement.

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Simultaneous measurement of refractive index and temperature using thinned fiber based Mach–Zehnder interferometer

Cited by 37 publications

References 11 publications

A Core-Offset Mach Zehnder Interferometer Based on A Non-Zero Dispersion-Shifted Fiber and Its Torsion Sensing Application

A Core-Offset Mach Zehnder Interferometer Based on A Non-Zero Dispersion-Shifted Fiber and Its Torsion Sensing Application

Refractive index measurement based on fiber Bragg grating connected with a multimode fiber core

Bragg Grating Embedded in Mach-Zehnder Interferometer for Refractive Index and Temperature Sensing

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