Dynamics of self-focusing and self-phase modulation of elliptic Gaussian laser beam in a Kerr-medium

Tarsem Singh, Nareshpal Singh Saini, Shyam Sunder Kaul

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Using a direct variational technique involving elliptic Gaussian laser beam trial function, the combined effect of non-linearity and diffraction on wave propagation of optical beam in a homogeneous bulk Kerr-medium is presented. Particular emphasis is put on the variation of beam width and longitudinal phase delay with the distance of propagation. It is observed that no stationary self-trapping is possible. The regularized phase is also seen to be always negative.

Original languageEnglish
Pages (from-to)423-431
Number of pages9
JournalPramana - Journal of Physics
Volume55
Issue number3
DOIs
StatePublished - Sep 2000
Externally publishedYes

Funding

This research work was partially supported by the University Grants Commission of India.

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