Open AccessSpatially-resolved self-heterodyne spectroscopy of lateral modes of broad-area laser diodes
Author(s) -
N. Stelmakh,
Michael Vasilyev
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.003845
Subject(s) - optics , heterodyne (poetry) , laser , spectroscopy , diode , materials science , heterodyne detection , semiconductor laser theory , resolution (logic) , physics , optoelectronics , quantum mechanics , acoustics , artificial intelligence , computer science
We investigate the fine structure of the optical spectrum of a broad-area laser diode with approximately 30-MHz resolution using spatially-resolved self-heterodyning technique. We show that this method is capable of measuring the relative powers and spacings of the individual lateral modes.