Title: Dark spatial photovoltaic solitons and soliton-induced waveguide elements in ion-implanted planar lithium niobate waveguides
Authors: Kruglov, Vitaly G.
Shandarov, Vladimir M.
Tan, Yang
Chen, Feng
Kip, Detlef  
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: 2008
Editors: Tománek, Pavel
Senderáková, Dagmar
Hrabovský, Miroslav
Publisher: SPIE
Document Type: Conference Object
Journal / Series / Working Paper (HSU): Proceedings of SPIE - The International Society for Optical Engineering 
Volume: 7138
Pages: 4 S.
Publisher Place: Bellingham, WA
Conference: Photonics, Devices, and Systems IV 2008 
Formation of dark spatial optical solitons in planar waveguides produced by implantation of light ions into Fe- or Cudoped X cut lithium niobate wafers is experimentally studied. The implantation both of protons and O3+-ions results in the excellent waveguide layers with their thickness about 3 microns and optical losses less than 1 dB/cm. The soliton states at light wavelengths of 532 nm and 633 nm are developed due to the self-defocusing photorefractive- photovoltaic nonlinearity of lithium niobate. Extraordinarily polarized light beams are used in experiments to form dark solitons and to probe the soliton-induced waveguide channels. Steady-state dark photovoltaic spatial solitons have been realized in both, H+- implanted and O 3+- implanted planar waveguides at optical powers from 10 to 100 microwatts. The storage time of soliton-induced channel waveguides makes up at least some hours without special illumination of a planar waveguide and they may be erased within some seconds in a case of their permanent readout with stronger light beams. The possibility to form more complicated channel waveguide structures in regimes of dark spatial solitons is also demonstrated. © 2008 SPIE.
Organization Units (connected with the publication): Technische Universität Clausthal
URL: https://api.elsevier.com/content/abstract/scopus_id/66749099427
ISBN: 9780819473790
ISSN: 0277786X
DOI: 10.1117/12.818044
Appears in Collections:Publications of the HSU Researchers (before HSU)

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