Observation of the bright photovoltaic spatial soliton in fiber-like photorefractive crystal
We have observed two-dimensional bright photorefractive spatial soliton for the first time in a Ce:KNSBN fiber-like crystal at wave-length of 514.5 nm with the intensity range between 2.83 × 103 W/cm2 and 4.71 × 103 W/cm2, then compared it with the one formed in a bulk sample. By comparison we have found that the intensity of forming a soliton in a fiber-like crystal is 7 ∼ 9 times that in a bulk crystal due to stronger scattering light and complicated multi-wave interaction. By comparison we have also found that the transverse dimensions of a soliton formed in a fiber-like crystal are about 4% smaller than the ones in a bulk crystal when the experimental geometry remains the same, then we have exploited the theory including the contribution of scattering field to interpret the experimental phenomenon.
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Document Type: Research Article
Affiliations: Institute of Modern Optics, Nankai University, the Key Laboratory of Opt-electronic Information Science and Technology, M. E. C., Tianjin 300071, P.R. China
Publication date: 2004-09-01