Title

Beam breakup and modulational instability in a bulk type I quadratic medium

Authors

Authors

D. M. Baboiu;G. I. Stegeman

Comments

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Abbreviated Journal Title

Opt. Quantum Electron.

Keywords

SPATIAL SOLITARY WAVES; 2ND-ORDER NONLINEARITIES; OPTICAL SOLITONS; GENERATION; STABILITY; Engineering, Electrical & Electronic; Optics

Abstract

The effect of a small modulation superimposed on a strip (1D) solitary wave propagating in a bulk quadratic medium was investigated both analytically and numerically near Type phase matching. General, exact results were obtained. By using first order perturbation theory, we obtained the gain coefficient for the modulational instability and the modulation cut-off frequency and we investigated their dependence on various beam and material parameters. The wave evolves into a clean periodic sequence of solitary waves and does not reproduce the incident beam. We showed that the beam breakup observed experimentally is due entirely to noise induced modulational instability.

Journal Title

Optical and Quantum Electronics

Volume

30

Issue/Number

7-10

Publication Date

1-1-1998

Document Type

Article

Language

English

First Page

937

Last Page

954

WOS Identifier

WOS:000078160300025

ISSN

0306-8919

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