Modeling of Fluctuations in Dynamical Optoelectronic Device Simulations within a Maxwell-Density Matrix Langevin Approach
arXiv (Cornell University)(2023)
摘要
We present a full-wave Maxwell-density matrix simulation tool including
c-number stochastic noise terms for the modeling of the spatiotemporal dynamics
in active photonic devices, such as quantum cascade lasers (QCLs) and quantum
dot (QD) structures. The coherent light-matter interaction in such devices
plays an important role in the generation of frequency combs and other
nonlinear and nonclassical optical phenomena. Since the emergence of nonlinear
and nonclassical features is directly linked to the noise properties, detailed
simulations of the noise characteristics are required for the development of
low-noise quantum optoelectronic sources. Our semiclassical simulation
framework is based on the Lindblad equation for the electron dynamics, coupled
with Maxwell's equations for the optical propagation in the laser waveguide.
Fluctuations arising from interactions of the optical field and quantum system
with their reservoirs are treated within the quantum Langevin theory. Here, the
fluctuations are included by adding stochastic c-number terms to the
Maxwell-density matrix equations. The implementation in the mbsolve dynamic
simulation framework is publicly available.
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关键词
dynamical optoelectronic device simulations
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