Self-deflection of partially spatially incoherent beams and solitons in photovoltaic photorefractive crystals

✍ Scribed by Li-fen Yan; Hong-cheng Wang; Qing-li Jin; Wen-jing Gu

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 478 KB
• Volume: 281
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2008.08.001

✦ Synopsis

By considering the effect of background light and diffusion, the self-deflection process of partially spatially incoherent (PSIC) beams and photovoltaic (PV) solitons in open-circuit PV photorefractive crystals has been investigated by employing numerical method and the perturbation technique, respectively. The results from the two approaches are in good agreement: the center of PSIC PV solitons moves on a parabolic trajectory, which is similar to those of coherent solitons. In addition, we also discuss that the dependence of self-deflection effect on the coherent parameter h 0 and find it is slight relative to h 0 for quasi-soliton but decreases monotonously with h 0 for PSIC beam.