Title:
Simulation of three dimensional current spreading in photonic crystal VCSEL structures
Simulation of three dimensional current spreading in photonic crystal VCSEL structures
Author(s)
Kulkarni, Aditya
Advisor(s)
Klein, Benjamin
Editor(s)
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Abstract
An efficient simulation technique for calculating the current distribution in a
Vertical Cavity Surface Emitting Laser (VCSEL) is proposed and implemented. The
technique consists of a hybrid 1D/3D approach to the problem. The 3D aspect of
simulation is essential for devices like a photonic crystal VCSEL where the existing
2D simulation techniques are inadequate. The modular approach of the technique is
advantageous, as it provides
exibility in dealing with device simulations of varying
complexity. It also provides a relatively short simulation time, beneficial for exploring
a large design parameter space. The box integration technique is used for discretizing
the equations and sparse matrix methods are used in solving the matrices. Simulation
results and comparisons are provided for various aspects and modules of the simulator.
The results for a few sample simulations indicate that the analysis has reasonable
agreement with experimental results. The simulation error can be reduced using
more accurate models for the active region of the laser.
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Date Issued
2008-12-19
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Resource Type
Text
Resource Subtype
Thesis