Preprint article · Journal article
Dynamical Properties of Nanolasers Based on Few Discrete Emitters
We investigate the dynamical properties of nanolasers comprising a few two-level emitters coupled to an optical cavity. A set of rate equations is derived, and is shown to agree very well with a solution of the full master equation model. Using a linearized version of these rate equations, we can analytically express the response of the nanolaser to a modulation of the pumping rate.
These results are compared with the modulation response obtained directly from the master equation using a novel method. We show that contrary to conventional semiconductor lasers, the nanolaser is typically over-damped and displays a dip in the modulation bandwidth as the two-level systems become inverted.
Both these features can be traced back to the use of discrete emitters that are incoherently pumped.
Language: | English |
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Publisher: | IEEE |
Year: | 2013 |
Pages: | 945-954 |
ISSN: | 15581713 and 00189197 |
Types: | Preprint article and Journal article |
DOI: | 10.1109/JQE.2013.2282464 |
ORCIDs: | Mørk, Jesper |
Cavity resonators Equations Laser modes Mathematical model Modulation Pump lasers Semiconductor lasers atom lasers discrete emitters dynamical properties laser theory master equation modulation response nanolasers nanophotonics nanoscale devices optical cavity optical pumping physics.optics pumping rate quantum dot lasers rate equations semiconductor lasers two-level emitters