2012/09/11 by S. Konar, Anjan Biswas, Konar, S. +1
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fiber Optic Sensors #FOS: Physical sciences #Nonlinear Photonic Systems #Optics (physics.optics) #physics.optics
paper · pdf · doi:10.48550/arxiv.1209.2211
51 pages, 20 figures
arxiv created 2012/09/11 · openalex publication_date 2012/09/11 · arxiv updated 2012/09/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We have reviewed recent developments of some aspects of optical spatial solitons in photorefractive media. Underlying principles governing the dynamics of photorefractive nonlinearity have been discussed using band transport model. Nonlinear dynamical equations for propagating solitons have been derived considering single as well as two-photon photorefractive processes. Fundamental properties of three types of solitons, particularly, screening, photovoltaic and screening photovoltaic solitons have been considered. For each type of solitons, three different configurations i.e., bright, dark and gray varieties have been considered. Mechanisms of formation of these solitons due to single as well as two-photon photorefractive processes have been considered and their self bending discussed. Vector solitons, particularly, incoherently coupled solitons due to single photon and two-photon photorefractive phenomena have been highlighted. Existence of some missing solitons have been also pointed out.