|Title:||Modulational instability in one-dimensional saturable waveguide arrays: Comparison with Kerr nonlinearity||Authors:||Stepić, Milutin
Rüter, Christian E.
|Language:||en||Subject (DDC):||DDC::500 Naturwissenschaften und Mathematik||Issue Date:||Nov-2006||Publisher:||Elsevier||Document Type:||Article||Journal / Series / Working Paper (HSU):||Optics Communications||Volume:||267||Issue:||1||Page Start:||229||Page End:||235||Publisher Place:||Amsterdam||Abstract:||
Discrete modulational instability within the first band of uniform one-dimensional waveguide arrays possessing a saturable self-defocusing nonlinearity is investigated in detail within the coupled mode approach. Explicit analytical results for both the threshold and the maximal gain of instability are compared with the corresponding data from waveguide arrays exhibiting Kerr nonlinearity. We find that saturation bounds the interval of existence of discrete modulational instability, stabilizes the frequency region of perturbations around ±π/2 and decreases both gain and critical spatial frequency of perturbations. © 2006 Elsevier B.V. All rights reserved.
|Organization Units (connected with the publication):||Technische Universität Clausthal||URL:||https://api.elsevier.com/content/abstract/scopus_id/33749624511||ISSN:||00304018||DOI:||10.1016/j.optcom.2006.06.019|
|Appears in Collections:||Publications of the HSU Researchers (before HSU)|
Show full item record
checked on May 21, 2022
Items in openHSU are protected by copyright, with all rights reserved, unless otherwise indicated.