Discrete diffraction and spatial gap solitons in photovoltaic LiNbO₃ waveguide arrays

Chen, Feng; Stepić, Milutin; Rüter, Christian E.; Runde, Daniel; Kip, Detlef; Shandarov, Vladimir; Manela, Ofer; Segev, Mordechai

doi:10.1364/OPEX.13.004314

Discrete diffraction and spatial gap solitons in photovoltaic LiNbO₃ waveguide arrays

Publication date

2005-05

Document type

Research article

Author

Chen, Feng

Stepić, Milutin

Rüter, Christian E.

Runde, Daniel

Kip, Detlef

Shandarov, Vladimir

Manela, Ofer

Segev, Mordechai

Organisational unit

Technische Universität Clausthal

DOI

10.1364/OPEX.13.004314

URI

https://openhsu.ub.hsu-hh.de/handle/10.24405/14049

Scopus ID

2-s2.0-21244459962

Publisher

Soc.

Series or journal

Optics express

ISSN

1094-4087

Periodical volume

13

Periodical issue

11

First page

4314

Last page

4324

Part of the university bibliography

Nein

Language

English

Abstract

We investigate, experimentally and theoretically, light propagation in one-dimensional waveguide arrays exhibiting a saturable self-defocusing nonlinearity. We demonstrate low-intensity "discrete diffraction", and the high-intensity formation of spatial gap solitons arising from the first band of the transmission spectrum. The waveguide arrays are fabricated by titanium in-diffusion in a photorefractive copper-doped lithium niobate crystal, and the optical nonlinearity arises from the bulk photovoltaic effect. © 2005 Optical Society of America.

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