Tailoring Chirp in Spin-Lasers
Mesoscale and Nanoscale Physics
2012-03-22 v1 Other Condensed Matter
Abstract
The usefulness of semiconductor lasers is often limited by the undesired frequency modulation, or chirp, a direct consequence of the intensity modulation and carrier dependence of the refractive index in the gain medium. In spin-lasers, realized by injecting, optically or electrically, spin-polarized carriers, we elucidate paths to tailoring chirp. We provide a generalized expression for chirp in spin-lasers and introduce modulation schemes that could simultaneously eliminate chirp and enhance the bandwidth, as compared to the conventional (spin-unpolarized) lasers.
Keywords
Cite
@article{arxiv.1202.4706,
title = {Tailoring Chirp in Spin-Lasers},
author = {Guilhem Boeris and Jeongsu Lee and Karel Vyborny and Igor Zutic},
journal= {arXiv preprint arXiv:1202.4706},
year = {2012}
}
Comments
4 pages, 3 figures