Dark incoherent spatial solitons in logarithmically saturable nonlinear media |
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| Authors: | Zhang Yi-Qi Lu Ke-Qing Zhang Mei-Zhi Li Ke-Hao Liu Shuang and Zhang Yan-Peng |
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| Affiliation: | 1. State Key Laboratory of Transient Optics and Photonics, Xi＇an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi＇an 710119, China 2. Optoeleetronic Technology Department-Optoelectronic Tracking Technology Research Center, Xi＇an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi＇an 710119, China 3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 4. Department of Electronic Science and Technology, Xi＇an Jiaotong University, Xi＇an 710049, China) |
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| Abstract: | This paper studies numerically the dark incoherent spatial solitons
propagating in logarithmically saturable nonlinear media by using
a coherent density approach and a split-step Fourier approach for the
first time. Under odd and even initial conditions, a soliton triplet
and a doublet are obtained respectively for given parameters.
Simultaneously, coherence properties associated with the soliton
triplet and doublet are discussed. In addition, if the values of the
parameters are properly chosen, five and four splittings from the
input dark incoherent spatial solitons can also form. Lastly, the
grayness of the soliton triplet and that of the doublet are studied,
in detail. |
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| Keywords: | incoherent spatial solitons coherence length logarithmically nonlinear media |
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