Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:A2L-C
Session:
Number:A2L-C-3
Observation of Antiphase Dynamics of Spatiotemporal Chaos in a Broad-Area Semiconductor Laser
Masaya Arahata, Atsushi Uchida,
pp.41-44
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
We experimentally investigate spatio-temporal phase dynamics of a broad-area semiconductor laser. We observe that the near-field pattern is constituted of several intensity peaks. We spatially isolate them by using a slit as partial intensities. For each frequency component of each spectrum of the partial intensities we sum the corresponding spectral powers. We compare this value to in the total intensity of the whole near-field pattern. At some components in the frequency spectrum, the frequency peak of total intensity is lower than the sum of those of the partial intensity, which suggests the existence of antiphase dynamics between the partial intensities.