Fabrication and characterization of cascaded tapered Mach-Zehnder interferometer for refractive index sensing

Bhardwaj, Vanita; Singh, Vinod Kumar

doi:10.1016/j.sna.2016.04.008

Cited by 51 publications

(19 citation statements)

References 30 publications

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“…These sensors include SPR-based optical fiber sensor described by Cennamo et al . (1325 nm/RIU) 51 , Mach-Zehnder interferometer sensor fabricated by Vanita and Vinod (380 nm/RIU) 52 , 1DPC single nanobeam air-mode cavity proposed by Daquan Yang et al . (537.8 nm/RIU) 53 , porous silicon microcavity sensor presented experimentally by R. Caroselli et al .…”

Section: Discussionmentioning

confidence: 99%

Ultra-high sensitive 1D porous silicon photonic crystal sensor based on the coupling of Tamm/Fano resonances in the mid-infrared region

Ahmed

Mehaney

2019

Sci Rep

161

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Porous silicon one-dimensional photonic crystals (PSi-1DPCs) are capable of sensing solutions and liquids based on the smallest variation of the refractive indices. In the present work, we present a novel metal/PSi-1DPC as a liquid sensor based on Tamm/Fano resonances. The operating wavelength range is from 6.35 to 9.85 μm in the mid-infrared (MIR) spectral region. Different metals (Al, Ag, Au, and Pt) are attached to the top surface of the PSi-1DPCs structure to show Tamm/Fano resonances more clearly. To the best of our knowledge, it is the first time that Tamm/Fano resonances exhibit simultaneously in PSi-1DPCs within the same structure. The reflection spectra were calculated for the metal/PSi-1DPC structure by using the transfer matrix method (TMM) and the Bruggeman’s effective medium approximation (BEMA). The simulations show that the Tamm/Fano resonances are red-shifted towards the higher wavelengths with increasing the refractive index of the pores. The Ag/PSi-1DPC sensor showed the highest performance. Its sensitivity can be reached to the value 5018 nm/RIU with a high-quality factor of about 2149.27. We predict the proposed sensors can be easily fabricated and we expect them to show higher performance than other reported sensors of this type. Therefore, it will be of interest in the field of optical sensing in different fields.

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Section: Discussionmentioning

confidence: 99%

Ultra-high sensitive 1D porous silicon photonic crystal sensor based on the coupling of Tamm/Fano resonances in the mid-infrared region

Ahmed

Mehaney

2019

Sci Rep

161

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“…The authors measured both the temperature and concentration of glucose solutions simultaneously. In 2014, Bhardwaj et al [ 15 ] proposed the dual taper-like fiber probe glucose sensor based on a Mach–Zehnder Interferometer (MZI) using the arc fusion splicer. Relatively high sensitivities are achieved by using the intensity interrogation methods.…”

Section: Introductionmentioning

confidence: 99%

A Small U-Shaped Bending-Induced Interference Optical Fiber Sensor for the Measurement of Glucose Solutions

Fang

Wang

Chiang

2016

Sensors

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The study proposes a small U-shaped bending-induced interference optical fiber sensor; this novel sensor is a probe-type sensor manufactured using a mechanical device, a heat source, optical fiber and a packaging module. This probe-type sensor overcomes the shortcomings of conventional optical fibers, including being difficult to repair and a tendency to be influenced by external forces. We manufactured three types of sensors with different curvature radiuses. Specifically, sensors with three radiuses (1.5 mm, 2.0 mm, and 3.0 mm) were used to measure common water and glucose solutions with concentrations of between 6% and 30% (the interval between concentrations was 4%). The results show that the maximal sensitivity was 0.85 dB/% and that the linearly-dependent coefficient was 0.925. The results further show that not only can the small U-shaped bending-induced interference optical fiber sensor achieve high sensitivity in the measurement of glucose solutions, but that it can also achieve great stability and repeatability.

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“…The multi-reflection process that happen in the tapered based EDF is unique and it produces a transfer function much different from the other interferometer such as Fabry-Pérot [22,23], Michelson and Sagnac configurations [24,25]. The narrow core along the fiber phase is extremely high sensitivity and relatively low loss and for this reason, the tapered based EDF filter has a greater sensitivity and one of the best results to produce multiwavelength laser compared to the other techniques.…”

Section: Methodsmentioning

confidence: 99%

Single-pump multiwavelength hybrid raman-EDF laser using a non-adiabatic microfiber interferometer

Ibrahim¹,

Naim²,

Ali³

2020

IJEECS

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This paper presents a multiwavelength fiber laser utilizing non-adiabatic tapered EDF based Mach Zehnder Interferometer (MZI) in hybrid Raman-EDF gains design with a linear cavity. A stable laser was obtained from the single pump with a 1497 nm wavelength through the employment of a 20:80 optical circulators and 99% reflective mirror. The generated backward propagating oscillates inside the laser cavity generate the stable multiwavelength output with 4 channels, which is coupled out via the 10:90 coupler and the output laser is characterized using an OSA with a resolution of 0.015 nm. The hybrid Raman-EDF gain is pumped from the external cavity by a Raman Pump Unit (RPU) and produced a stable multiwavelength laser output with SMSR of 28.9 dBm for 300 mW pump power, 30.7 dBm for 1000 mW pump power and 33.7 dBm for 1500 mW pump power.

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Fabrication and characterization of cascaded tapered Mach-Zehnder interferometer for refractive index sensing

Cited by 51 publications

References 30 publications

Ultra-high sensitive 1D porous silicon photonic crystal sensor based on the coupling of Tamm/Fano resonances in the mid-infrared region

Ultra-high sensitive 1D porous silicon photonic crystal sensor based on the coupling of Tamm/Fano resonances in the mid-infrared region

A Small U-Shaped Bending-Induced Interference Optical Fiber Sensor for the Measurement of Glucose Solutions

Single-pump multiwavelength hybrid raman-EDF laser using a non-adiabatic microfiber interferometer

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