Photonic Crystal Fiber Strain-Independent Temperature Sensing Based on Modal Interferometer

Nalawade, Sandipan M.; Thakur, Harneet V.

doi:10.1109/lpt.2011.2164787

Cited by 28 publications

(13 citation statements)

References 17 publications

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“…The sensitivity of the COF-based interferometer is as small as 0.31 pm/με in the range of 0 με-3000 με, which corresponds to a temperature-strain cross-sensitivity of 0.004 pm/°C. Such a cross-sensitivity is quite lower than the air-cavity-based MZI (0.0266 pm/°C) [12], and the PCF-based MZI (0.013 pm/°C) [15].…”

Section: Resultsmentioning

confidence: 79%

In-Fiber Modal Interferometer Based on Coaxial Dual-Waveguide Fiber for Temperature Sensing

Zhou

Zheng

et al. 2014

IEEE Photon. Technol. Lett.

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An in-fiber modal interferometer based on coaxial dual-waveguide optical fiber was demonstrated for temperature sensing. The modal interferometer is composed of a coaxial fiber, which is sandwiched in between two single mode fibers with small lateral core-offsets. Such a modal interferometer is insensitive to external refractive index (RI) and can work when the surrounding RI is larger than the RI of the fiber cladding. It has high temperature sensitivity of 78 pm/°C and low crosssensitivity to strain of 0.004°C/με.

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Section: Resultsmentioning

confidence: 79%

In-Fiber Modal Interferometer Based on Coaxial Dual-Waveguide Fiber for Temperature Sensing

Zhou

Zheng

et al. 2014

IEEE Photon. Technol. Lett.

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“…Consequently, the S-ASPBF has a low strain sensitivity. Its temperature-strain cross sensitivity is 0.0092°C/με, which is much lower than that of PCF-based MZI [13] and air cavity-based MZI [14].…”

Section: Resultsmentioning

confidence: 84%

Mach–Zehnder Interferometer Based on S-Tapered All-Solid Photonic Bandgap Fiber

Wang

Zhang

et al. 2015

IEEE Photon. Technol. Lett.

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We propose an S-tapered fiber Mach-Zehnder interferometer based on all-solid photonic bandgap fibers. Theoretical and experimental results reveal that the interference pattern originates from the coupling between core modes LP 01 and LP 11 , LP 01 cladding supermode. The proposed structure exhibits quite sensitive to temperature and nearly insensitive to surrounding refractive index (RI). Moreover, the temperature-strain cross sensitivity is only 0.0092°C/με. The strain/surrounding RI responses show little impact on the temperature sensing precision. Such a structure is easy to fabricate and can be a promising temperature sensor, eliminating the RI/strain-induced cross sensitivity.Index Terms-S-tapered structure, all-solid photonic bandgap fibers, refractive index, temperature, strain.

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“…A polarimetric interrogation to this kind of Hi-Bi PCF showed a sensitivity of 0.136 rad/ • C at 1310 nm [74]. Using modal interference other temperature sensors were reported: by tapering a solid silica-core PCF, a sensitivity of 12 pm/ • C was obtained for measurements up to 1000 • C [75]; using an LMA PCF spliced to an SMF a three-beam path modal interferometer with a sensitivity of 8.17 pm/ • C was reported [76]; a strain-independent modal interferometer for temperature sensing (sensitivity ∼73 pm/ a C) was accomplished by an induced core offset of a nonlinear PCF in-between of a multimode fiber (MMF) and a SMF [77]. MZIs using LPGs in a PCF with a sensitivity of 42.4 pm/ • C [78] and an all-solid PBF (doped fiber) with enhanced temperature sensitivity 71.5 pm/ • C were demonstrated [79].…”

Section: Pressures Sensorsmentioning

confidence: 99%

Photonic Crystal Fibers for Sensing Applications

2012

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Photonic crystal fibers are a kind of fiber optics that present a diversity of new and improved features beyond what conventional optical fibers can offer. Due to their unique geometric structure, photonic crystal fibers present special properties and capabilities that lead to an outstanding potential for sensing applications. A review of photonic crystal fiber sensors is presented. Two different groups of sensors are detailed separately: physical and biochemical sensors, based on the sensor measured parameter. Several sensors have been reported until the date, and more are expected to be developed due to the remarkable characteristics such fibers can offer.

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Photonic Crystal Fiber Strain-Independent Temperature Sensing Based on Modal Interferometer

Cited by 28 publications

References 17 publications

In-Fiber Modal Interferometer Based on Coaxial Dual-Waveguide Fiber for Temperature Sensing

In-Fiber Modal Interferometer Based on Coaxial Dual-Waveguide Fiber for Temperature Sensing

Mach–Zehnder Interferometer Based on S-Tapered All-Solid Photonic Bandgap Fiber

Photonic Crystal Fibers for Sensing Applications

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