Sponsor
This work was supported in part by the National Science Foundation and by Tektronix, Inc. The author also expresses his appreciation to members of the Department of Physics at the University of Otago, Dunedin, New Zealand, for valuable discussions and hospitality during his sabbatical visit.
Published In
Physical Review A
Document Type
Article
Publication Date
5-1-1991
Subjects
Field theory (Physics), Transients (Dynamics), Lasers
Abstract
Semiclassical models for laser-dynamics studies typically incorporate a derivative approximation that reduces the second-order wave equation for the electric field to a first-order equation. It is shown here that this approximation and further frequency approximations are not necessary and may lead to significant errors for some high-gain laser systems. A more exact analysis also reveals a partial decoupling of the electric and magnetic fields that occurs with fast transient phenomena. These ideas are illustrated in terms of well-known dynamical effects.
Persistent Identifier
http://archives.pdx.edu/ds/psu/8154
Citation Details
Casperson, L. W. (1991). Field-equation approximations and the dynamics of high-gain lasers. 43 (9), 5057-5067.
Description
This is the publisher's final pdf. Article appears in Physical Review A (http://pra.aps.org/) and is copyrighted by APS Journals (http://publish.aps.org/).