Title

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

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 I 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.

Publication Date

1-1-1998

Publication Title

Optical and Quantum Electronics

Volume

30

Issue

7-10

Number of Pages

937-954

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1023/a:1006938511523

Socpus ID

0032183077 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0032183077

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