Evolution of Airy-Gaussian pulses in photonic crystal fiber with two zero-dispersion wavelengths

Peng, Huaiyu; Li, Yan; Peng, Jie; Wen, Bing; Deng, Ying; Tang, Pinghua

doi:10.1016/j.ijleo.2021.168324

Cited by 5 publications

(3 citation statements)

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“…In Equation ( 5), f R is the contribution of the delayed Raman response to the nonlinear pole, and the parameter value is generally 0.18 [32], δ(T) represents the instantaneous electronic response. The expression of h R (T) function is…”

Section: Theoretical Modelmentioning

confidence: 99%

“…where τ 1 = 12.2 fs and τ 2 = 32 fs [32] represent two tunable parameters in the Raman response. Four PCFs with three zero-dispersion points can be obtained by changing the internal structure of PCFs [33].…”

Section: Theoretical Modelmentioning

confidence: 99%

“…Under phase matching, in a PCF with one zero-dispersion point [34], its anomalous dispersion region energy radiates a blue-shifted dispersion wave with a higher frequency than the input pulse, Figure 3a. In the PCF with two zero dispersion points, the input pulse can radiate a blue and red-shifted dispersion wave (RDW) to two normal dispersion regions, respectively [32], Figure 3b. The rational use of B-DW and R-DW generation amplification of two zero-dispersion PCFs can effectively broaden the spectrum.…”

Section: Effect Of the Number Of Zero-dispersion Points In Pcfmentioning

confidence: 99%

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Supercontinuum Generation from Airy-Gaussian Pulses in Photonic Crystal Fiber with Three Zero-Dispersion Points

Yu,

Wen,

Deng

et al. 2023

Photonics

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The supercontinuum generation and manipulation of Airy-Gaussian pulses in a photonic crystal fiber with three zero-dispersion points are studied using the split-step Fourier method. Firstly, the spectral evolution of Airy-Gaussian pulses in four photonic crystal fibers with different barrier widths was discussed, and the optimal fiber was determined after considering the factors of width and flatness. By analyzing the mechanism of supercontinuum generation in photonic crystal fibers with single, double and three zero-dispersion points, it is found that the photonic crystal fiber with three zero-dispersion points have a larger spectral width due to the component of tunneling solitons. Then, the effects of four characteristic parameters (truncation factor a, distribution factor χ0, initial chirp C and central wavelength λ) on forming the supercontinuum spectrum of Airy-Gaussian pulses are analyzed in detail. The results show that the spectral width and energy intensity of the dispersive wave and tunneling soliton generation can be well controlled by adjusting the barrier width and initial parameters of the pulse. These research results provide a theoretical basis for generating and manipulating high-power mid-infrared supercontinuum sources.

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Section: Theoretical Modelmentioning

confidence: 99%

Section: Theoretical Modelmentioning

confidence: 99%