Dynamic Nonlinear Effect on Lasing in a Random Medium
Disordered Systems and Neural Networks
2009-11-10 v1
Abstract
We have studied the dynamic effect of nonlinearity on lasing in disordered medium. The third-order nonlinearity not only changes the frequency and size of lasing modes, but also modifies the laser emission intensity and laser pulse width. When the nonlinear response time is comparable to or longer than the lifetime of the lasing mode, the nonlinearity changes the laser output through modifying the size of the lasing mode. When the nonlinear response is much faster than the buildup of the lasing mode, positive nonlinearity always extracts more laser emission from the random medium due to the enhancement of single particle scattering.
Cite
@article{arxiv.cond-mat/0301427,
title = {Dynamic Nonlinear Effect on Lasing in a Random Medium},
author = {B. Liu and A. Yamilov and Y. Ling and J. Y. Xu and H. Cao},
journal= {arXiv preprint arXiv:cond-mat/0301427},
year = {2009}
}
Comments
12 pages, 5 figures