Discriminating the existence regions and dynamics between quartic self-similar pulse and dissipative pure quartic soliton in ultrashort fiber laser

Wang, Zhiteng; Mao, Yifu; Ling, Xiaohui; Zhang, Lifu

doi:10.1016/j.optlastec.2023.110353

Cited by 2 publications

References 44 publications

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A novel high birefringence photonic crystal fiber with high nonlinear

Wang

2024

Fourth International Conference on Telecommunications, Optics, and Computer Science (TOCS 2023)

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A new structure of photonic crystal fiber with high birefringence and high nonlinearity is proposed. The birefringence, effective mode area and nonlinear coefficient characteristics are studied by finite element method (FEM). Numerical studies show that when the cladding hole spacing of fiber is 1.0μm, the birefringence is 2.06×10 -2 and the high nonlinear coefficient of 69 W -1 km -1 can be obtained at the wavelength of 1.55μm. This kind of fiber is easy to fabricate because of its simple structure and strong regularity, which has a wide application prospect in polarization control.

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A novel high birefringence photonic crystal fiber with high nonlinear

Wang

2024

Fourth International Conference on Telecommunications, Optics, and Computer Science (TOCS 2023)

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Spectral sidebands of dissipative soliton in a positive fourth-order-dispersion fiber laser

Wu,

Liu,

Gao

et al. 2024

Opt. Express

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Recently, the dissipative soliton (DS) generation in the positive fourth-order-dispersion (FOD) fiber laser has been theoretically predicted, namely dissipative pure-quartic soliton (DPQS), featuring a higher energy-scaling ability compared to conventional DS dominated by positive group velocity dispersion. Here, we discover that the formation of spectral sidebands is always accompanying by the stabilized DPQS in the fiber laser, which is different from the conventional DS. Due to the combination of positive FOD and self-phase modulation, low- and high-frequency components are distributed at the leading and trailing edges of the pulse, forming the pedestals that propagate with it. In the frequency domain, these high- and low-frequency components of the spectrum provide the conditions necessary for the interference between dispersive waves and DPQS. Furthermore, the unique U-shaped phase curve of FOD results in densely distributed phase-matching frequencies, i.e., densely distributed sidebands. The characteristics of spectral sidebands are also numerically studied, which are well consistent with the experimental results. These findings enable a deeper understanding of DPQS and further optimize the performance of fiber lasers.

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Discriminating the existence regions and dynamics between quartic self-similar pulse and dissipative pure quartic soliton in ultrashort fiber laser

Cited by 2 publications

References 44 publications

A novel high birefringence photonic crystal fiber with high nonlinear

A novel high birefringence photonic crystal fiber with high nonlinear

Spectral sidebands of dissipative soliton in a positive fourth-order-dispersion fiber laser

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