Dispersive-Wave Soliton Generation in Photonic Crystal Fiber with Three Zero-Dispersion Wavelengths

Zhijian, 郝志坚 Hao; Zhao, Chujun; Jianguo, 文建国 Wen; Shuangchun, 文双春 Wen; Dianyuan, 范滇元 Fan

doi:10.3788/aos201131.1006003

Cited by 2 publications

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“…The PCF with three ZDWs has a strong dispersion effect, and therefore multiple high-order dispersion needs to be considered. [32] The dispersion curve and group delay curve of the PCF considered in this study as a function of wavelength are plotted in Fig. 1(a).…”

Section: Numerical Model For Ultrashort Pulse Propagation In the Pcfmentioning

confidence: 99%

Supercontinuum manipulation based on the influence of chirp on soliton spectral tunneling

et al. 2018

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The soliton spectral tunneling (SST) effect, as a soliton spectral switching phenomenon, enables a soliton to tunnel through a spectrally limited regime of normal dispersion in the fiber with multiple zero dispersion wavelengths (ZDWs). Since initial chirp can affect the behavior of pulse evolution, we numerically study the influence of chirp on the SST in the process of supercontinuum (SC) occurring in a photonic crystal fiber (PCF) with three ZDWs. The linear chirp is imposed by a phase modulation of input pulse while maintaining a constant pulse duration. Interestingly, it is found that the spectral range and flatness can be flexibly tuned by adjusting the initial chirp value. More specifically, positive chirp facilitates soliton self-frequency shifting (SSFS), making the soliton quickly transfer from one anomalous dispersion regime to another accompanied by the generation of dispersive waves (DWs). In this case, the SST effect further expands the spectral range by enhancing both the red-shift of the fundamental soliton and the blue-shift of DWs, thus generating a broader SC. However, negative chirp suppresses the SST effect, resulting in a smoother SC at the expense of bandwidth. Therefore, the findings in this work provide interesting results relating to the influence of initial chirp on the SST to generate a considerably smoother and broader SC, which is extremely useful in many applications, such as wavelength conversion and SC generation.

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Section: Numerical Model For Ultrashort Pulse Propagation In the Pcfmentioning

confidence: 99%

Supercontinuum manipulation based on the influence of chirp on soliton spectral tunneling

et al. 2018

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“…When GVM condition is satisfied, by FWM effect, these generated fundamental solitons can capture not only DWs in the normal dispersion regime, but also soliton-like DW in the anomalous dispersion regime. The soliton-like DW is a new frequency component, which is generated in the initial phase of pulse evolution [30]. At the same time, the soliton-like DW can also be trapped by high-order femtosecond pulse in the same phase.…”

Section: Introductionmentioning

confidence: 99%

Soliton Trapping of Dispersive Waves in Photonic Crystal Fiber With Three Zero-Dispersive Wavelengths

et al. 2015

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Soliton trapping of dispersive waves during supercontinuum generation in the photonic crystal fiber with three zero-dispersion wavelengths, which is pumped by femtosecond pulses, is numerically studied. It is demonstrated that the generated supercontinuum is bounded by two branches of dispersive waves, namely, soliton-like dispersive wave and red-shifted dispersive wave (R-DW). When the R-DW with low intensity is generated in the marginal normal dispersion regime, the soliton-like dispersive wave with high intensity, which is a new frequency component, is generated in the marginal anomalous dispersion regime, whose energy mainly comes from blue-shifted dispersive wave. In addition, through the four-wave mixing effect, fundamental solitons can trap R-DW radiated from the first-ejected fundamental soliton in the normal dispersion regime, as well as soliton-like DW in the anomalous dispersion regime. These new captured components contribute to generate a wider and smoother supercontinuum spectrum.

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Dispersive-Wave Soliton Generation in Photonic Crystal Fiber with Three Zero-Dispersion Wavelengths

Cited by 2 publications

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Supercontinuum manipulation based on the influence of chirp on soliton spectral tunneling

Supercontinuum manipulation based on the influence of chirp on soliton spectral tunneling

Soliton Trapping of Dispersive Waves in Photonic Crystal Fiber With Three Zero-Dispersive Wavelengths

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