A novel dual resonance long period waveguide grating based highly sensitive refractive index sensor with reduced temperature sensitivity

Saha, N. N.; Kumar, Arun

doi:10.1016/j.optcom.2020.126092

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…Due to this low range of RI, a small error in RI measurement will lead to a significant error in the chemical and biomolecules field. One of the factors that contribute to the RI measurement error in waveguide-based sensors is the error due to the temperature cross-sensitivity [31]. It is known that waveguide sensors are based on measuring the change of the output intensity or wavelength due to the RI change near the surface of the sensor.…”

Section: Introductionmentioning

confidence: 99%

“…Temperature compensation accomplishes by using a transfer matrix analysis between the RI sensitivity and temperature sensitivity data. Besides, another temperature compensation technique using dual resonance long-period waveguide grating in a metal-clad ridge waveguide was proposed by Saha and Kumar [31]. The RI and temperature cross-sensitivity effect is minimized by controlling the thickness of the waveguide core materials.…”

Section: Introductionmentioning

confidence: 99%

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Unsaturated polyester resin/polymethylmethacrylate waveguide-based refractive index sensor with dual-wavelength temperature compensation

Yulianti

Marwoto

Astuti

et al. 2023

Meas. Sci. Technol.

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This paper demonstrates an optical waveguide based- refractive index (RI) sensor using temperature compensation method. The optical waveguide was formed using a polymethylmethacrylate (PMMA) sheet as the cladding material and unsaturated polyester resin (UPR) as the core material. The sensor design consists of two input waveguide branches, a sensing area and an output branch. Two light emitting diodes (LEDs) with wavelength of 530 nm and 660 nm were used as light sources. In this work, temperature compensation was done by dual-wavelength technique in which RI and temperature sensitivities were measured at two different wavelengths at 530nm and 660nm. Based on the RI and temperature sensitivities, temperature compensation was implemented. Experimental findings indicated that the average relative error of the uncompensated measurement using the light source of 530nm and 660nm were 0.4372% and 0.2749 %, respectively. Meanwhile, the average error of the temperature compensation method was 0.0344 %. Hence, the temperature compensation method provides measurement error up to 92% lower compared to the uncompensated method. As such, the proposed dual-wavelength compensation method could effectively improve the RI measurement accuracy.Keywords: Optical waveguide, polymethylmethacrylate, polyester resin, refractive index sensor, dual-wavelength, temperature compensation

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unsaturated polyester resin/polymethylmethacrylate waveguide-based refractive index sensor with dual-wavelength temperature compensation

Yulianti

Marwoto

Astuti

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…As an important optical element, diffraction grating has the properties of dispersion [1][2][3][4][5][6], beam splitting [7][8][9][10][11], polarization [12][13][14][15][16][17] and phase matching [18][19][20][21][22] and shows a wide range of applications in different fields. For example, diffraction gratings with high dispersion and high diffraction efficiency, such as the core components in laser pulse compression [23], laser frequency selection [24] and spectral beam combining [25] are widely used in high-power laser systems.…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of bi-function separation under second Bragg incidence by T-type microstructure

Fu¹,

Wang²

2021

Laser Phys.

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A one-port reflector for transverse-electric (TE) polarization and a two-port beam splitter for transverse-magnetic (TM) polarization is proposed by T-type double-layer fused-silica grating. After optimization calculations, 97.87% single-order high-efficiency reflection under TE polarization and 48.70%/48.71% highly uniform dual-order beam splitting under TM polarization are finally obtained. In addition, the normalized electric field and magnetic field diagrams of the grating are obtained using the finite element method. Finally, the incident characteristics and process tolerances of the grating are analyzed, and a range of structural parameters that meets good reflection efficiency is found. The design and study of polarization-dependent gratings carried out in this paper are of great significance for increasing the output power of laser systems and improving the stability of optical devices when unpolarized lasers are incident.

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Enhanced-sensitive dual microfiber knot resonators based sensor with vernier effect for simultaneous measurement of refractive index and temperature

Yang

Kong

et al. 2022

Optik

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A novel dual resonance long period waveguide grating based highly sensitive refractive index sensor with reduced temperature sensitivity

Cited by 5 publications

References 48 publications

Unsaturated polyester resin/polymethylmethacrylate waveguide-based refractive index sensor with dual-wavelength temperature compensation

Unsaturated polyester resin/polymethylmethacrylate waveguide-based refractive index sensor with dual-wavelength temperature compensation

Modeling and analysis of bi-function separation under second Bragg incidence by T-type microstructure

Enhanced-sensitive dual microfiber knot resonators based sensor with vernier effect for simultaneous measurement of refractive index and temperature

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