Photonic crystal fibers
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A novel Ge15As15Se17Te53 chalcogenide-based photonic crystal fiber with an octagonal cladding was designed which exhibits low confinement loss and high nonlinearity. The dispersion properties were investigated over a wide wavelength range of up to 11 µm.
11p viambani 18-06-2024 1 1 Download
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Numerical investigation of optical properties in carbon tetrachloride-filled photonic crystal fibers
In this work, we design circular lattice photonic crystal fibers using Lumerical Mode Solution software, its hollow core filled with carbon tetrachloride. Optical properties including effective refractive index, chromatic dispersion, nonlinearity, and fiber loss were investigated numerically in detail based on solving Maxwell's wave equations.
14p viambani 18-06-2024 2 1 Download
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In this work, the dispersion properties and nonlinear properties of circular photonic crystal fibers were improved by a combination of carbon tetrachloride infiltration into the core and modification of the air hole diameters d1 and d2 of rings in the cladding.
16p viamancio 04-06-2024 1 0 Download
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This paper presents a new design of Ge20Sb5Se75 large-solid-core- square lattice photonic crystal fiber (PCF) with the first ring of air hole near the core removed. Using the full vector finite element method for anisotropic perfectly matched layers, we numerically examine the dispersion characteristics of the PCF as a function of the wavelength in the mid-infrared range.
10p dianmotminh02 03-05-2024 3 1 Download
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Nonlinear characteristics of fused silica, solid-core photonic crystal fibers (PCFs) with a square array of air holes are studied numerically. We present a novel design that emphasizes the difference in air hole diameters in the photonic cladding.
13p viberkshire 09-08-2023 3 3 Download
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We demonstrate in this study that near-zero, ultra-flattened chromatic dispersion can be achieved over a wide range of wavelengths in photonic crystal fibers (PCFs) by means of slight variations in the geometrical parameters of the cladding.
15p viberkshire 09-08-2023 7 3 Download
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Germanium doped photonic crystal fibers with differences in the layers' air hole diameters in the cladding are presented to obtain flat dispersion, small effective mode area, and low attenuation property for supercontinuum generation applications. The flatness and small value of the dispersion depend on the lattice geometry when the fibers have the same germanium doping concentration.
10p viberkshire 09-08-2023 8 4 Download
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This paper presents new results on dispersion in photonic crystal fibers (PCF) based on a circular lattice, with benzene infiltration into the hollow-core. We achieved near-zero, ultra-flat dispersion through the appropriate adjustment of air hole diameters and pitch of cladding.
11p viberkshire 09-08-2023 4 3 Download
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In this workwe proposed a newly designed photonic crystal fiber (PCF) with a circular lattice, the difference between the air-hole diameters of the first ring and the other rings makes it possible to improve the nonlinear properties of fibers.
9p viberkshire 09-08-2023 6 5 Download
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In this paper, we present circular lattice solid-core PCFs that have a difference in the stomatal diameters of the first ring near the core compared with other rings in the cladding. In addition, the heterogeneity in the distance between two air holes in the structure is also emphasized.
9p vispiderman 15-06-2023 5 2 Download
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In this paper, the nonlinear properties of photonic crystal fibers (PCF) with As2S3 substrate were analyzed numerically. With the suspended-core design, we achieve an anomalous dispersion regime with one or two zero-dispersion wavelengths, which is flat and has a small value at the investigated wavelength.
12p vispiderman 15-06-2023 4 2 Download
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Characteristics of As2Se3 photonic crystal fibers (PCFs) with a solid-core and small-core diameter are numerically investigated in the long-wavelength range (from 2 to 10 μm). The flat dispersion feature, high nonlinearity, and small confinement loss of the proposed photonic crystal fiber structure make it suitable for supercontinuum.
10p vispiderman 15-06-2023 4 2 Download
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This study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with chloroform as a new source of supercontinuum (SC) spectrum. We numerically study the guiding properties of the fiber structure in terms of characteristic dispersion and mode area of the fundamental mode.
9p vispiderman 15-06-2023 5 1 Download
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In this paper, hollow-core photonic crystal fibers (PCFs) infiltrated with benzene and nitrobenzene are designed and investigated. Their dispersion characteristics are numerically simulated.
9p vispiderman 15-06-2023 3 2 Download
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In this paper, we report the experimental and numerical results of the SC generation of the PCF in the AD region. The tested fiber based on silica glass having 7 rings of air holes ordered in regular hexagonal lattice with a solid core.
9p vispiderman 15-06-2023 7 3 Download
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In this paper, we propose the solid-core photonic crystal fibers (PCFs) with hexagonal cladding infiltrated with propanol in the air-holes. The dispersion characteristics and zero- dispersion wavelengths of these PCFs have been compared with previous publications and analyzed in detail.
6p vicolinzheng 14-12-2021 6 0 Download
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As a result, octave spanning of the SC spectrum was achieved in the wavelength range of near-IR from 1.25 µm to 2.3 µm with 90 fs pulse and energy of 1.5 nJ at a pump wavelength of 1.55 µm. The proposed fibers are fully compatible with all-silica fiber systems, in particular, could be used for all-fiber SC sources and new low-cost all-fiber optical systems.
10p parasite 02-06-2021 11 1 Download
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In this paper we present the development of a new direction in so-called optofluidics, namely the research of photonic crystal fibers (PCF) infiltrated with liquids. In particular we concentrate on the flagship application of PCF, the process of Supercontinuum Generation (SG), in which injected monochromatic pulse may be dramatically broadened (spectrally), which creates a coherent beam generation of high brightness comparable to that of monochromatic lasers.
22p trinhthamhodang1218 18-03-2021 17 1 Download
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The characteristics of photonic crystal fibers (PCFs) with various air hole diameters infiltrated with alcoholic liquids such as ethanol, methanol, propanol and butanol are numerically investigated. Based on the numerical results, we have analyzed and compared in detail the characteristics of these fibers including effective refractive index, effective mode area, dispersion and confinement loss for two sets of parameters {d,Λ} = {1 µm,5 µm} and {1.42 µm, 3.26 µm}, with d the air hole diameter and Λ the lattice constant, respectively.
12p nguyenxuankha_bevandan 14-08-2020 22 4 Download
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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.
8p kethamoi6 01-07-2020 27 3 Download