Acta Optica Sinica, Volume. 31, Issue 10, 1019001(2011)
Temporal Behavior of the Low-Amplitude Dark and Gray Spatial Solitons in Centrosymmetric Photorefractive Media
In order to study the temporal behavior of the low-amplitude dark and gray spatial solitons in biased centrosymmetric photorefractive crystals, the expressions of time-dependent space-charge field and dynamical evolution equation are obtained. The temporal behavior of the intensity profiles and the intensity full width at half maximum (FWHM) of dark and gray solitons are obtained by numerical method. The results indicate that a broad soliton is generated at the beginning, and as time evolves, the intensity width of photovoltaic spatial solitons decreases monotonously to a minimum value toward steady state. Within the same propagation time, the higher the ratio of soliton peak intensity to the dark irradiation intensity is, the shorter the FWHM of photovoltaic solitons is. Dark and gray solitons have the similar temporal properties.
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Ji Xuanmang, Yao Jihuan, Jiang Qichang, Liu Jinsong. Temporal Behavior of the Low-Amplitude Dark and Gray Spatial Solitons in Centrosymmetric Photorefractive Media[J]. Acta Optica Sinica, 2011, 31(10): 1019001
Category: Nonlinear Optics
Received: Mar. 14, 2011
Accepted: --
Published Online: Sep. 16, 2011
The Author Email: Xuanmang Ji (jixuanmang@126.com)