Theoretical study of coherent supercontinuum generation in chalcohalide glass photonic crystal fiber

Medjouri, Abdelkader; Abed, Djamel

doi:10.1016/j.ijleo.2020.165178

Cited by 18 publications

(3 citation statements)

References 70 publications

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“…The results of SC based on the #F 1 fiber with a normal dispersion configuration can yield a wide spectrum, high coherence, and low noise. This approach is suitable for applications in the fields of optical coherence tomography and remote sensing 28 .…”

Section: Discussionmentioning

confidence: 99%

Design and modeling of the nonlinear properties of octagonal lattice Ge20Sb5Se75 photonic crystal fibers

Nguyen

2023

Sci. Tech. Dev. J.

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Most silica photonic crystal fibers have limited spectral broadening in the infrared region, making them less than ideal in terms of technological applications. In this work, we propose a new Ge20Sb5Se75 chalcogenide octagonal photonic crystal fiber that provides diverse dispersions with all-normal and anomalous regimes and multiple zero-dispersion wavelengths. The nonlinear properties are investigated over a wide wavelength range up to 14 µm by numerically solving Maxwell's wave equations using Lumerical Mode Solutions software. The full-vector finite-difference eigenmode method minimizes the losses so that low confinement losses in the short-wavelength region of 1 − 6 µm are found and nonlinear coefficients as high as thousands of W−1.km−1 are achieved. Three fibers with an all-normal dispersion profile and anomalous dispersion with one or three zero dispersion wavelengths are proposed for supercontinuum generation. The fibers provide small dispersion values of −0.88, 0.08, and 1.646 ps/(nm.km) at suitable pump wavelengths. Furthermore, the very small confinement loss of approximately 10−5 to 10−11 dB/m is the outstanding advantage of these optical fibers. A broadband spectrum with low input power is expected as a result of the proposed fiber-based supercontinuum generation.

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Section: Discussionmentioning

confidence: 99%

Design and modeling of the nonlinear properties of octagonal lattice Ge20Sb5Se75 photonic crystal fibers

Nguyen

2023

Sci. Tech. Dev. J.

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“…However, the above balance is broken and both the temporal and spectral shape of the soliton undergo complex changes (figures 8(d), (e), (g), (h), (j) and (k)) due to the appearance of higher order soliton (the shape of higher order soliton changes periodically) with higher power propagate along the fiber. Under the influence of pulsed Raman scattering and high-order dispersion, the higher order solitons are divided into a series of elementary solitons [53,54]. This phenomenon is soliton fission, which is mainly responsible for the continuous broadening of the output pulse even with input pulse peak powers as low as 90 W.…”

Section: Scg With Anomalous Dispersion Pcfmentioning

confidence: 99%

Design and analysis of the C₆H₆-filled circular photonic crystal fiber with ultra-flat dispersion for broadband supercontinuum generation with peak power of 130 W and 250 W

Trong,

Van,

Thi

2024

Laser Phys. Lett.

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This article introduces a new model of a circular silica-based photonic crystal fiber with a hollow core filled with C6H6. The difference in the air hole size and the distance between them in the first ring around the core has a profound effect on the dispersion, leading to ultra-flat dispersion with values as low as ±0.996 ps nm−1· km in wavelength range 0.74 µm. The high nonlinear coefficient of several 1000 W−1 · km−1 and the low confinement loss of a few tens of dB m−1 suggest proposing three fibers with dispersion and nonlinear properties suitable for broadband supercontinuum generation at low peak power. The influence of peak power on the broadening of the supercontinuum spectrum is also investigated. Fibers with a flat all-normal dispersion profile provide a smooth spectrum with bandwidths of 1.215 and 1.626 µm at 30 dB with a peak power of 250 W. A fiber with an anomalous dispersion regime generates a supercontinuous spectrum, broadening to 3.868 µm in the mid-infrared region (2.467 µm bandwidth at 30 dB) under laser pulse excitation with 130 W peak power. Our results provide further insights into the generation of broadband mid-infrared supercontinuum using liquid-core silica-fibers, which have great potential for applications in the fields of optical communications and optical sensing.

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“…Photonic crystal fibers have numerous applications in science and engineering [5][6][7][8][9] because of their outstanding optical properties. The PCF's design versatility via adjusting their lattice parameters to achieve exceptional optical properties, such as endlessly monomodal propagation, high nonlinearity, low confinement loss, and tunable chromatic dispersion profile, allow PCFs to be an excellent nonlinear medium to enhance supercontinuum (SC) generation performance [10][11][12][13][14][15][16]. In most studies on SC generation via PCFs, silica has been used as a common background material.…”

Section: Introductionmentioning

confidence: 99%

Optical properties of As2S3-based suspended-core photonic crystal fiber

Hoang

Tran²,

Nguyen

2022

hueuni-jns

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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. The high nonlinear coefficient and very low confinement loss in the wavelength range of 1–3 µm, in comparison with other publications, are the outstanding advantages of these suspended-core PCFs. The highest nonlinear coefficient (28,527.374 W–1·km–1), smallest effective mode area (0.593 µm2), and low confinement loss (6.050 × 10–17 dB·m–1) at the wavelength of 1.55 µm were observed in the PCFs with a fiber diameter of 16.07 μm. Based on the numerical simulation results, we proposed two optimal structures suitable for supercontinuum generation.

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Theoretical study of coherent supercontinuum generation in chalcohalide glass photonic crystal fiber

Cited by 18 publications

References 70 publications

Design and modeling of the nonlinear properties of octagonal lattice Ge20Sb5Se75 photonic crystal fibers

Design and modeling of the nonlinear properties of octagonal lattice Ge20Sb5Se75 photonic crystal fibers

Design and analysis of the C₆H₆-filled circular photonic crystal fiber with ultra-flat dispersion for broadband supercontinuum generation with peak power of 130 W and 250 W

Optical properties of As2S3-based suspended-core photonic crystal fiber

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Theoretical study of coherent supercontinuum generation in chalcohalide glass photonic crystal fiber

Cited by 18 publications

References 70 publications

Design and modeling of the nonlinear properties of octagonal lattice Ge20Sb5Se75 photonic crystal fibers

Design and modeling of the nonlinear properties of octagonal lattice Ge20Sb5Se75 photonic crystal fibers

Design and analysis of the C6H6-filled circular photonic crystal fiber with ultra-flat dispersion for broadband supercontinuum generation with peak power of 130 W and 250 W

Optical properties of As2S3-based suspended-core photonic crystal fiber

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Design and analysis of the C₆H₆-filled circular photonic crystal fiber with ultra-flat dispersion for broadband supercontinuum generation with peak power of 130 W and 250 W