Supercontinuum spectra generation in the single-mode optical fibre with concave dispersion profile
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作者:
Xu, WC
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S China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R ChinaS China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R China
Xu, WC
[1
]
Liang, ZQ
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S China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R ChinaS China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R China
Liang, ZQ
[1
]
Chen, QH
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S China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R ChinaS China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R China
Chen, QH
[1
]
Liu, SH
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S China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R ChinaS China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R China
Liu, SH
[1
]
机构:
[1] S China Normal Univ, Lab Photon Informat Technol, Guangzhou 510631, Peoples R China
In this paper, a new method is proposed to generate broad supercontinuum (SO) spectra in the single-mode optical fibre with concave dispersion profile. We numerically simulate pulse evolutions and discuss physics mechanism in detail for SO spectrum generation in the optical fibre with concave dispersion profile. Furthermore, general criteria are presented for specifying the shape of SO spectrum by introducing normalized parameters, which are related to the fibres and the initial pump pulses. The results show that the flat and broad SO spectra are indeed generated in our proposed optical fibre.