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Vishnu Priye - IEEE Xplore Author Profile

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Realization of temperature compensation and high sensitivity is a challenging task in the field of FBG based strain sensor. A unique scheme of high sensitive temperature compensated interrogation technique for FBG strain sensors is proposed. Two chirped FBGs are designed in such a way that effect of temperature on one FBG is compensated by the other FBG. The strain sensitivity is enhanced by a fac...Show More
Generalized multiprotocol label switching (GMPLS) optical network separates the control plane from the forwarding plane and promises a unified control plane for a variety of switching technologies. We have proposed the performance analysis and modelling of GMPLS optical networks with the multiservice queueing model. In order to analyze the blocking probability, average throughput and average utili...Show More
Psychophysiological measurement can be very crucial in critical conditions faced in aviation, military, hospitals, etc. Respiration rate is one of the primary parameters to determine the psychophysiological condition of a person. An effective respiration rate measurement system is developed using Fiber Bragg Grating (FBG), and a comparison of its response with an electronic sensor is carried out i...Show More
Fiber Bragg Gratings (FBGs) are known for their high sensitivity towards strain and temperature variation. In this manuscript, the strain sensing property of FBG is utilized and explored for measuring weight using a common binocular shaped cantilever type load cell. The shift in Bragg wavelength due to load application is converted into optical power variation using edge filter detection technique...Show More
To meet the simultaneous requirement of high sensitivity and high measurement range is an uphill task in the development of fiber Bragg grating (FBG) strain sensor. A unique scheme of highly sensitive FBG strain sensor is proposed based on nonlinear four wave mixing (FWM) with a high measuring range. In this paper, both the edges of FBG reflection spectrum are used without increasing the number of...Show More
In this paper, we have made an analysis of connection provisioning by calculating the probability of a number of call arrival requests for a number of available labels in a link with the code by applying Poisson distribution function random call arrival rate optical code switched Generalized Multiprotocol Label Switching (OCS-GMPLS) core networks. Further, we have suggested a switch (OCS) method f...Show More
Fiber Bragg Gratings (FBGs) are known for their excellent strain and temperature sensing capability. In this manuscript, application of FBG in weight measurement system is explored and investigated. FBG based optical load cell is designed and tested for the load capacity of upto 5kg. The FBG sensing data is converted in optical power variation using edge filter detection based interrogation techni...Show More
An optical ring resonator based sensor is proposed for bio-sensing applications. It is applied to glucose level monitoring in blood samples in the range 10 to 200 mg/dl using minimal invasive technique. Two configurations of ring resonator are proposed that are based on ridge and slot waveguide. The average sensitivity of slot ring resonator is observed to be 360 nm/RIU, which is six times higher ...Show More
Crosstalk due to nonlinear effects such as Stimulated Raman Scattering and Cross Phase Modulation in dynamic WDM systems employing lumped amplifier is investigated using closed formed formulae. Effect of change in pump power, interchannel separation is also investigated and found to be detrimental.Show More
Silicon nanowire optical rectangular waveguide (SNORW)-based biosensor is proposed for the first time to detect deoxyribonucleic acid (DNA) hybridization. It works on the principle of detecting the change in refractive index during the hybridization process when double strand DNA splits into single strands of DNA or two single strands renaturate into a double strand DNA. Considering the fabricatio...Show More
This paper elucidates the modal distribution of electric field for a vertically wired waveguide on SOI platform. Silicon wires in this paper are of 10 nm diameter and the waveguide is called as silicon nanowire optical rectangular waveguide (SNORW). Pattern of normalized electric field for dominant mode are compared among conventional slot waveguide, ridge slot waveguide and SNORW.Show More
A 3-D S-bend silicon waveguide optical interconnect on silicon on insulator is proposed to connect optical circuits in a multilayered photonic-integrated circuit (PIC). Critical parameters like bending loss, axial shift, and coupling loss are calculated for efficient implementation in the dense wavelength division multiplexing wavelength spectrum (1.46-1.62 μm). The critical parameters for tight b...Show More
Dispersion is one of the potential limiting parameter for generation of microwave signal using photonic methods. In this paper, we analyse theoretically, the influence of fiber dispersion parameter on the photonically generated microwave/millimeter wave signal using dual-parallel dual-drive LiNbO3 Mach-Zender modulators. Intensity at the output of photodetector having, eight and sixteen times freq...Show More
A silicon nanowire optical rectangular waveguide (SNORW) on 220-nm silicon-on-insulator platform is proposed for optical sensing of gases. Analysis and interdependence of critical parameters of SNORW are evaluated. Overall performance in terms of power confinement, waveguide sensitivity, and compactness is compared with that of conventional slot and ridge slot waveguides. Exploratory results on SN...Show More
In this paper we have computed the blocking probability of dynamic traffic using statistical method for WDM networks. Here, the logical topology created for dynamic traffic is transformed by virtually connected static g-link topology. We have computed the blocking performance of dynamic traffic using Erlang B traffic loss model that is mapped with g-link topology.Show More
Toward the next-generation exa-scale short-reach optical interconnects (OIs) supporting large-capacity data transmission, a compact computer-compatible 8-core heterogeneous trench-assisted multicore fiber (TA-MCF) is proposed, in which cores are arranged in a rectangular array. To analyze the crosstalk (XT) between adjacent cores of TA-MCF OI, a rigorous full-vectorial $\mathbf{H}$- field finite ...Show More
A new architecture of optical sensing and monitoring unit is been proposed in this paper which uses an array of fiber Bragg grating in two different channels. This system is built to monitor pressure change at any point of pipeline within the range of base station. The even-odd configuration of reflection wavelength of fiber Bragg grating makes the architecture easier to implement and fabricate. T...Show More
In photonics integrated circuits two straight waveguide are required to be connected by a bend waveguide incurring coupling losses. In this paper such coupling losses are optimized by the analyzing the bend waveguide by Multiple Scale Method (MSM). The axial shift in electric field is estimated and coupling losses are optimized by introducing offset between straight and bend waveguide.Show More
A technique for microwave frequency estimation with high accuracy based on Mach-Zehnder Modulator and Phase Modulator is proposed and demonstrated. In this proposed technique three dispersive fibers and two wavelengths are used to build power comparison factor. Wavelengths used are extracted from sidebands of MZM and then phase modulated with unknown frequency. Modulated signal is then passed thro...Show More
A technique for instantaneous microwave frequency measurement using dual drive Mach-Zehnder Modulator is proposed and demonstrated. In the proposed technique a microwave signal for which frequency is to be use is phased modulated on the two optical carriers. These carrier wavelength are extracted from the side bands of dual drive LiNbO3 Mach-Zehnder Modulator, and this modulated signal passed thro...Show More
Multiple scale analysis of slot waveguide electrooptic modulator of few nanometer width and lower refractive index than the adjacent waveguides is presented for the first time to predict phase modulation due to variation in the refractive index in the slot by application of external voltage. The effect of different electrooptic coefficient pertaining to diverse polymers on voltage required for π p...Show More
A space division multiplexed 1 × 4 and 2 × 4 multicore fiber with α-index profile is designed to meet the stringent requirements of high bandwidth density optical interconnects. By employing the proposed model, the effect of index parameter α on the crosstalk of multicore fiber is investigated under bent condition. Attributes of bend induced crosstalk is evaluated for variation in core to core pit...Show More
Survivability in Wavelength Division Multiplexed (WDM) networks is a challenging task in modern network design against network failures. In earlier days, survivability schemes were implemented with the assumption that the physical layer conditions are ideal in nature. It is seen that in long haul WDM transmissions, four wave mixing (FWM) affects the quality of transmission in fiber. Therefore it i...Show More
A comparative analysis of mode conversion is investigated for linearly distributed different configurations of four core coupled multi-core fiber. The mode conversion was evaluated by using normalized electrical field intensity profiles of near field and relative power ratio of coupled modes depending on bending radius. The mode excitation ratio is investigated with variation in spacing between th...Show More
The WDM network can be made flexible by use of wavelength converters that transform data on a wavelength to another wavelength. In this paper, we propose a technique to locate the optimal nodes with converter using genetic algorithm such that overall call blocking probability is minimized.Show More