Title :
Generation of arrays of bright and dark spatial solitons in a photorefractive
Author :
Mendez Otero, M.M. ; Chavez-Cerda, S. ; Iturbe Castillo, M.D. ; Vysloukh, V.A.
Author_Institution :
Dept. Fotonica y Fisica Opt., Inst. Nacional de Astrofisica, Opt. y Electron., Puebla, Mexico
Abstract :
Summary form only given. We study the propagation of a sinusoidal pattern, with a visibility of one, in a photorefractive Bi/sub 12/TiO/sub 20/ crystal under an external electric field to excite a focusing or defocusing nonlinearity. When a self focusing applied voltage is used an array of fundamental bright solitons is produced and when a self defocusing one is used an array of dark spatial solitons is formed for a determined magnitude of the field. Increasing the external field creates an array with a doubling frequency with to respect to the initial one.
Keywords :
bismuth compounds; brightness; optical arrays; optical self-focusing; optical solitons; photorefractive materials; Bi/sub 12/TiO/sub 20/; bright spatial soliton arrays; dark spatial soliton arrays; defocusing nonlinearity; doubling frequency; external electric field; external field; focusing; fundamental bright solitons; photorefractive; photorefractive Bi/sub 12/TiO/sub 20/ crystal; self defocusing; self focusing applied voltage; sinusoidal pattern; Bismuth; Delay; Electrons; Interference; Laser beams; Optical refraction; Optical solitons; Optical waveguides; Photorefractive effect; Plasma waves;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807419
