66 research outputs found
Lippmann-Schwinger integral equation approach to the emission of radiation by sources located inside finite-sized dielectric structures
Multicanonical evaluation of the tails of the probability density function of semiconductor optical amplifier output power fluctuations
Output power PDF of a saturated semiconductor optical amplifier: Second-order noise contributions by path integral method
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, which agree very well with a solution of the full master equation
model and makes it simple to investigate the properties of the system. 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 to the modulation response obtained directly from the master
equation using a novel method. Using the rate equation method, we calculate the
modulation bandwidth and 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 modeling of the emitters as two-level
systems that are incoherently pumped.Comment: 11 pages, 5 figure
Bistability and low-frequency fluctuations in semiconductor lasers with optical feedback: a theoretical analysis
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