Direct experimental observation of periodic intensity modulation along straight hollow core optical waveguides
Optics
2009-11-13 v1
Abstract
We report the direct observation of periodic intensity modulation of a laser pulse propagating in a hollow core waveguide. A series of equally spaced plasma sparks along the gas-filled capillary is produced. This effect can be explained by the beating of different fiber modes, which are excited by controlling the size of the focal spot at the capillary entrance. As compared to an artificial modulated waveguide structure, our presented approach represents an easier and more flexible quasi-phase-matching scheme for nonlinear-optical frequency conversion.
Keywords
Cite
@article{arxiv.physics/0609080,
title = {Direct experimental observation of periodic intensity modulation along straight hollow core optical waveguides},
author = {T. Pfeifer and M. C. Downer},
journal= {arXiv preprint arXiv:physics/0609080},
year = {2009}
}
Comments
12 pages, 4 figures, based on results obtained during M.A. work of TP (first author) at the University of Texas at Austin and 1 month after