Title: Pattern formation by spatially incoherent light in a nonlinear ring cavity
Authors: Smirnov, E.
Stepić, M.
Shandarov, V.
Kip, Detlef  
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: Jan-2006
Publisher: Springer
Document Type: Article
Journal / Series / Working Paper (HSU): Applied Physics B Lasers and optics 
Volume: 85
Page Start: 135
Page End: 138
Publisher Place: Berlin
Modulation instability and pattern formation by spatially incoherent light is investigated experimentally in a nonlinear ring cavity using a photorefractive strontium barium niobate crystal as the nonlinear medium. A step-like threshold for the onset of pattern formation is observed experimentally for the case of high optical feedback. When compared to the case without feedback, this threshold is shifted towards smaller nonlinearities and a significant increase of the modulation degree of the obtained patterns is obtained. Our measurements also show that, above threshold, the dominating spatial frequency of the patterns decreases monotonically with both increasing nonlinearity and increasing feedback.
Organization Units (connected with the publication): Technische Universität Clausthal
URL: https://api.elsevier.com/content/abstract/scopus_id/33748709854
ISSN: 09462171
DOI: 10.1007/s00340-006-2267-1
Appears in Collections:Publications of the HSU Researchers (before HSU)

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