Structural and Behavioural Analysis of As2Se3, TeO2, SiC, SiO2 and Si3N4 for Photonic Application

2020 ◽  
Vol 978 ◽  
pp. 360-368
Author(s):  
Shahiruddin ◽  
M.Ashique Hassan ◽  
Anand Kumar ◽  
Dharmendra K. Singh
Keyword(s):  
Photonic Crystal ◽  
Structural Parameters ◽  
Nonlinear Coefficient ◽  
Hexagonal Structure ◽  
Confinement Loss ◽  
Structural Behaviour ◽  
Photoelectric Characteristic ◽  
Photonic Crystal Fibre ◽  
Crystal Fiber ◽  
Arsenic Selenide

The materials significantly influence the structural, optical and photoelectrical characteristic. Materials such as Arsenic selenide, Tellurite Glass, Silicon carbide, Silicon dioxide and Silicon nitride are investigated through finite element method. The models are established to analyse the structural behaviour of polarization preserving fibre of proposed materials. Photoelectric characteristic determines guided properties of photon particles. Refractive index of the materials influences the properties of photonic crystal fibre. A Polarization Splitter based hexagonal structure is proposed, where inner ring of cladding is in elliptical shape air holes and outer rings are in circular air holes. It provides highly negative dispersion, low confinement loss and high nonlinear coefficient between 1µm to 2µm wide wavelength ranges. The dispersion result shows -2000 db/km-nm at 1.55µm wavelength. Polarization beam splitters photonic crystal fiber characteristics of proposed materials are analysed with same structural parameters.

INFLUENCE OF STRUCTURE PARAMETERS ON THE SUPERCONTINUUM GENERATION OF PHOTONIC CRYSTAL FIBER

2020 ◽  
pp. 161-168
Author(s):  
Hieu
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Structural Parameters ◽  
Hexagonal Lattice ◽  
Supercontinuum Generation ◽  
Fused Silica ◽  
Confinement Loss ◽  
Crystal Fiber ◽  
Crystal Fibers ◽  
Fused Silica Glass

In this paper, we report a numerical calculation of the influence of structural parameters on the supercontinuum generation of photonic crystal fibers. A photonic crystal fiber based on the fused silica glass, eight rings of air holes ordered in a hexagonal lattice, is proposed. Guiding properties in terms of dispersion and confinement loss of the fundamental mode are also studied numerically. As a result, the broadband width of the supercontinuum spectrum will increase when the lattice pitch decreases or the diameter of air hole in the cladding increases. However, the coherence of SC will become worse.

scholarly journals Theoretical Considerations of Photonic Crystal Fiber with All Uniform-Sized Air Holes for Liquid Sensing

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 249
Author(s):  
Abdul Mu’iz Maidi ◽  
Pg Emeroylarffion Abas ◽  
Pg Iskandar Petra ◽  
Shubi Kaijage ◽  
Nianyu Zou ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Nonlinear Coefficient ◽  
Numerical Aperture ◽  
Relative Sensitivity ◽  
Effective Area ◽  
Confinement Loss ◽  
Crystal Fiber ◽  
Sensing Applications ◽  
Liquid Sensing

A novel liquid-infiltrated photonic crystal fiber model applicable in liquid sensing for different test liquids—water, ethanol and benzene—has been proposed. One core hole and three air hole rings have been designed and a full vector finite element method has been used for numerical investigation to give the best results in terms of relative sensitivity, confinement loss, power fraction, dispersion, effective area, nonlinear coefficient, numerical aperture and V-Parameter. Specially, the assessed relative sensitivities of the proposed fiber with water, ethanol and benzene are 94.26%, 95.82% and 99.58%, respectively, and low confinement losses of 1.52 × 10−11 dB/m with water, 1.21 × 10−12 dB/m with ethanol and 6.01 × 10−16 dB/m with benzene, at 1.0 μm operating wavelength. This novel PCF design is considered simple and can be easily fabricated for practical use, and the assessed waveguide properties has determined the potential applicability in real liquid sensing applications.

scholarly journals Design and Simulation of Photonic Crystal Fiber for Liquid Sensing

Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 16
Author(s):  
Abdul Mu’iz Maidi ◽  
Izaddeen Yakasai ◽  
Pg Emeroylariffion Abas ◽  
Malik Muhammad Nauman ◽  
Rosyzie Anna Apong ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Simple Structure ◽  
Chromatic Dispersion ◽  
Nonlinear Coefficient ◽  
Hexagonal Lattice ◽  
Relative Sensitivity ◽  
Effective Area ◽  
Confinement Loss ◽  
Crystal Fiber

A simple hexagonal lattice photonic crystal fiber model with liquid-infiltrated core for different liquids: water, ethanol and benzene, has been proposed. In the proposed structure, three air hole rings are present in the cladding and three equal sized air holes are present in the core. Numerical investigation of the proposed fiber has been performed using full vector finite element method with anisotropic perfectly match layers, to show that the proposed simple structure exhibits high relative sensitivity, high power fraction, relatively high birefringence, low chromatic dispersion, low confinement loss, small effective area, and high nonlinear coefficient. All these properties have been numerically investigated at a wider wavelength regime 0.6–1.8 μm within mostly the IR region. Relative sensitivities of water, ethanol and benzene are obtained at 62.60%, 65.34% and 74.50%, respectively, and the nonlinear coefficients are 69.4 W−1 km−1 for water, 73.8 W−1 km−1 for ethanol and 95.4 W−1 km−1 for benzene, at 1.3 µm operating wavelength. The simple structure can be easily fabricated for practical use, and assessment of its multiple waveguide properties has justified its usage in real liquid detection.

scholarly journals Broadband Plasmonic Polarization Filter Based on Photonic Crystal Fiber with Dual-Ring Gold Layer

Micromachines ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 470 ◽  
Author(s):  
Nan Chen ◽  
Xuedian Zhang ◽  
Min Chang ◽  
Xinglian Lu ◽  
Jun Zhou
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Insertion Loss ◽  
Structural Parameters ◽  
Extinction Ratio ◽  
Gold Layer ◽  
Confinement Loss ◽  
Polarization Filter ◽  
Crystal Fiber ◽  
Low Insertion Loss

Polarization filter is a very important optical device with extinction characteristics. Due to the design flexibility of photonic crystal fibers and the high excitation losses of the gold layer, the polarization filter based on the photonic crystal fiber and surface plasmonic resonance effect is widely studied. Considering these, we present a simple and high-performance polarization filter using the finite element method. Numerical simulations show that there is a large difference in energy between the two polarization directions by reasonable adjustment of the structural parameters, the confinement loss in the x-pol direction is less than that in the y-pol direction, which is suitable to realize a broadband polarization filter. When the fiber length is 2 mm, the extinction ratio peak can reach −478 dB, and the bandwidth with the extinction ratio better than −20 dB is 750 nm, which covers communication wavelengths of 1.31 μm and 1.55 μm (1.05–1.8 μm). It also has a low insertion loss of 0.11 dB at 1.31 μm and 0.04 dB at 1.55 μm. In addition, our design has high feasibility in fabrication and better tolerance. The proposed filter with compactness, high extinction ratio, broad bandwidth, and low insertion loss would play an important role in the sensing detection, bio-medical, and telecommunication field.

scholarly journals DESIGN OF HEXAGONAL PHOTONIC CRYSTAL FIBER WITH ULTRA-HIGH BIREFRINGENT AND LARGE NEGATIVE DISPERSION COEFFICIENT FOR THE APPLICATION OF BROADBAND FIBER

2019 ◽  
Vol 2 (1) ◽  
pp. 9-16
Author(s):  
Shovasis Kumar Biswas
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Dispersion Coefficient ◽  
Nonlinear Coefficient ◽  
Simulation Software ◽  
Confinement Loss ◽  
High Birefringence ◽  
Crystal Fiber ◽  
Negative Dispersion ◽  
Operating Wavelength

The purpose of this paper is to design a hexagonal microstructure photonic crystal fiber (PCF) which gives ultra-high birefringence and very low confinement loss for sensing application. To characterize the modal properties of the proposed photonic crystal fiber, finite element method is used. We found ultra-high birefringence of 3.34×10-2 at operating wavelength 1550nm by using simulation software comsol multiphysics. Our proposed PCF gives large value of nonlinear coefficient of 63.51 W-1km-1, large value of negative dispersion coefficient of -566.6 ps/ (nm.km), and also ultra-low confinement loss which is in the order of 10-7.

scholarly journals Flattened zero dispersion Photonic crystal fibers with embedded nano holes and ultra low confinement loss for supercontinuum generation

2019 ◽  
Vol 8 (4) ◽  
pp. 7-15 ◽  
Author(s):  
K. F. Fiaboe ◽  
P. Kumar ◽  
J. S. Roy
Keyword(s):  
Photonic Crystal ◽  
Peak Power ◽  
Photonic Crystal Fibers ◽  
Nonlinear Coefficient ◽  
Far Infrared ◽  
Supercontinuum Generation ◽  
Confinement Loss ◽  
Visible Range ◽  
Crystal Fiber ◽  
Crystal Fibers

In this paper unique photonic crystal fiber (PCF) structure with nanoholes embedded have been studied. Embedded nanoholes have been filled with different materials of alcoholic groups like butanol, ethanol, methanol and propanol. Investigations of these structure shows flattened zero dispersion in visible range to far infrared regions. Simulated PCF structure reports ultra-low confinement loss of the order of 10-8 dB/km. Designed PCF promises to give large nonlinear coefficient of 3000 W-1Km-1 at 1335nm wavelengths. Numerical simulation of the fiber for the generation of supercontinuum generation (SCG) has been performed. Low power pump pulses of 50fs duration have been used. With a fiber of length of 15cm and pulses of 1kW, 2kW, 5kW and 10kW peak power, supercontinuum broadening of about 607nm, 908nm, 1987nm and 2405nm respectively.

scholarly journals Designing Dispersion Flattened Photonic Crystal Fiber for Wideband Applications

2019 ◽  
Author(s):  
Kubra Bashir ◽  
◽  
Rabia Zaman ◽  
Irfan Ahmed ◽  
Muhammad Imran Aslam
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Photonic Crystal ◽  
Software Tool ◽  
Square Lattice ◽  
Confinement Loss ◽  
Photonic Crystal Fibre ◽  
Crystal Fiber ◽  
Silica Core ◽  
Low Dispersion

In this paper, we proposed a dispersion flattened photonic crystal fibre (PCF) for having very low dispersion for wide bandwidth as well as low confinement loss. The proposed fibre has been numerically analyzed for Silica core as well as Borosilicate crown glass core with square lattice air holes. In the proposed design we have used elliptical air holes in the inner ring whereas outer rings are circular. Finite Element Method based software tool is used to analyze the proposed design. This comparison of core materials deduces that Borosilicate crown glass PCF produces negative dispersion, making it a good candidate to be used as Dispersion Compensating Fiber (DCF), whereas Silica PCF provides nearly zero dispersion at wavelength range 1.35 µm to 1.70 µm.

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