Abstract
Accurate modeling and efficient parameter extraction of the equivalent
circuit model of high-speed vertical-cavity surface emitting lasers (VCSELs)
for high-frequency operation based on the rate equations are presented in
this paper. The model is versatile in that it permits dc, small signal, and
large signal to be performed, and can be easily on commercial circuit software.
An analytical method, along with closed-form solution, to determine parasitic
elements, intrinsic model parameters and rate equation model parameters of
the VCSELs is developed and experimentally verified using on wafer measurement
of electronic and optical performance. Modeled and measured results for the
input reflection coefficients and modulation responses exhibit good agreement
over a wide range of bias points under cutoff and above-threshold biased condition
in the frequency range of 50 MHz–20 GHz for an oxide-confined AlGaAs
VCSELs.
© 2012 IEEE
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