11 July 2017 Coherently coupled screening spatial soliton pairs due to the two-photon photorefractive effect
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Abstract
A theoretical study of coherently coupled spatial soliton pairs propagating along the same line in biased two-photon photorefractive crystals is presented. Our results show that coherently coupled bright–bright and dark–dark soliton pairs propagating collinearly can be supported in a steady-state regime under appropriate conditions. Moreover, the effects of the intensity ratio, the initial phase difference between two incident coherent beams, and various external bias fields on the existence conditions and properties of these soliton pairs have been discussed in detail. The stability of these soliton pairs has also been discussed by means of beam propagation methods. Finally, the temperature dependence of the dark irradiance and diffusion process on the intensity profiles and self-deflection of coherently coupled bright–bright soliton pairs are also analyzed.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Qiang Wang, Qiang Wang, Lili Hao, Lili Hao, Hong-Xia Tang, Hong-Xia Tang, Hai-wei Mu, Hai-wei Mu, Chunfeng Hou, Chunfeng Hou, } "Coherently coupled screening spatial soliton pairs due to the two-photon photorefractive effect," Optical Engineering 56(7), 076102 (11 July 2017). https://doi.org/10.1117/1.OE.56.7.076102 . Submission: Received: 10 April 2017; Accepted: 20 June 2017
Received: 10 April 2017; Accepted: 20 June 2017; Published: 11 July 2017
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