Highly responsive NaCl detector based on inline microfiber Mach–Zehnder interferometer

Jaddoa, M.F.; Jasim, Ali Abdulhadi; Razak, M.Z.A.; Harun, Sulaiman Wadi; Ahmad, Harith

doi:10.1016/j.sna.2015.11.014

Cited by 43 publications

(17 citation statements)

References 28 publications

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“…The present world record for bulk RI sensitivity is around a few 10,000 nm/RIU, which was achieved by a waveguide surface plasmon resonance (SPR) sensor [75], a nano Lycurgus cup array (NCLA) sensor [46], fibre grating sensors [54,76,77], interferometer sensors [23,[78][79][80][81][82][83][84][85][86][87][88][89][90][91], whispering gallery mode (WGM) sensors [92][93][94][95]. Meanwhile, high values of FoM on the order of 1,000 RIU −1 appear for various RI sensors (mostly dielectricbased), e.g., a nanohole sensor [982], the NCLA sensor [46], tilted fibre Bragg grating (TFBG) sensors [52,299], interferometer sensors [84,87,88,90,91,399,404,417], photonic crystal cavity (PCC) sensors [58,62,504,505,520,524,530,536,[983]…”

Section: Discussionmentioning

confidence: 99%

“…For example, an MZI was formed by cascading two SMF tapers separated by a distance, as shown in Figure 10, panel A, e. The RI sensitivity of such MZI linearly increases with the separation length of the two tapers [416]. The RI sensitivity of 2,913.7 nm/RIU with a FoM of 2,697.3 RIU −1 was obtained for such MZI based on two cascaded SMF tapers with the waist diameter of 10-µm [417]. By integrating a weak taper between the two tapers, a sandwiched-taper MZI can be formed, which showed a 4× higher RI sensitivity than that of MZI with two cascaded tapers [418].…”

Section: Fibre Interferometermentioning

confidence: 99%

See 1 more Smart Citation

Optical Refractive Index Sensors with Plasmonic and Photonic Structures: Promising and Inconvenient Truth

Bai

Zhou

et al. 2019

Advanced Optical Materials

359

193

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Optical sensors are widely used for refractive index measurement in chemical, biomedical and food processing industries. Due to specific field distribution of the resonances excited, optical sensors provide high sensitivity to ambient refractive index variations. The sensitivity of optical sensor is highly dependent on material and structure of the sensor. Here, we review six major categories of optical refractive index sensors using plasmonic and photonic structures: (i) metal-based propagating plasmonic eigenwave structures, (ii) metal-based localized plasmonic eigenmode structures, (iii) dielectric-based propagating photonic eigenwave structures, (iv) dielectric-based localized photonic eigenmode structures, (v) advanced hybrid structures, and (vi) 2D material integrated structures. Representative configurations working in the wavelength range of 400−2000 nm will be selected and compared in terms of bulk refractive index sensitivities, figure of merits and working wavelengths. A technology map is established in order to define the standard and development trend for optical refractive index sensors.

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Section: Discussionmentioning

confidence: 99%

Section: Fibre Interferometermentioning

confidence: 99%

Optical Refractive Index Sensors with Plasmonic and Photonic Structures: Promising and Inconvenient Truth

Bai

Zhou

et al. 2019

Advanced Optical Materials

359

193

View full text Add to dashboard Cite

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“…A salinity sensor based on photonic crystal fiber was proposed by Lee et al [ 10 ], where the sensitivities of x-polarization and y-polarization are 5405 and 5675 nm/RIU, respectively. There are many types of sensors based on the interferometer method, such as the Fabry–Perot interferometer structure [ 11 ], rectangular optical microfiber Sagnac interferometer structure [ 12 ], C-type fiber structure [ 13 ], tapered structure [ 14 ], and single-mode multimode–single-mode (SMS) structure [ 15 ]. A high-sensitivity salinity sensor based on a coreless optical fiber was proposed by Lin et al [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Design of a Real-Time Salinity Detection System for Water Injection Wells Based on Fuzzy Control

You

Yue

Sun

et al. 2021

Sensors

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Salinity is an important index of water quality in oilfield water injection engineering. To address the need for real-time measurement of salinity in water flooding solutions during oilfield water injection, a salinity measurement system that can withstand a high temperature environment was designed. In terms of the polarization and capacitance effects, the system uses an integrator circuit to collect information and fuzzy control to switch gears to expand the range. Experimental results show that the system can operate stably in a high-temperature environment, with an accuracy of 0.6% and an uncertainty of 0.2% in the measurement range of 1–10 g/L.

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“…Various optical ber based models were utilized for the salinity sensing, that increases due to the presence of ions in water samples. Some notable attempts are ber based interferometers [8][9][10][11][12]. tapered bers [13,14], photonic crystal bers (PCF's) [15,16], surface plasmon resonance (SPR) sensors [17,18], micro ber [4,19] and ber grating sensors [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Plus Shaped Single Grating based Optical Fiber Structure for Water Sensing Application

Singh¹,

Agarwal

Saha

et al. 2021

Preprint

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Fiber grating sensors demonstrate great potential especially for the refractive index based sensing. However, a meticulous effort is still required to improve the sensitivity of fiber grating sensors towards water sensing. In this work, for the first time we have numerically investigated a plus shaped single grating within the core of optical fiber for water sensing applicaions. The primary objective of incoroporating the plus shaped grating within the core is to increase the sensitivity in comparison to existing grating sensors while increasing the analytes quantity. The testing of designed grating sensor model is done within the refractive index range from 1.33 to 1.39 with a remarkable wavelength shift of 65 nm. The analysis of proposed model of grating sensor is accomplished by using finite difference time domain (FDTD) method under the contour of perfect matched layer (PML) as boundary conditions at the interface of core and grating. The attained results depicts the significant sensitivity of the proposed fiber grating sensor for water sample sensing.

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Highly responsive NaCl detector based on inline microfiber Mach–Zehnder interferometer

Cited by 43 publications

References 28 publications

Optical Refractive Index Sensors with Plasmonic and Photonic Structures: Promising and Inconvenient Truth

Optical Refractive Index Sensors with Plasmonic and Photonic Structures: Promising and Inconvenient Truth

Design of a Real-Time Salinity Detection System for Water Injection Wells Based on Fuzzy Control

Plus Shaped Single Grating based Optical Fiber Structure for Water Sensing Application

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