Abstract
An InP L3 photonic crystal cavity on a suspended membrane has a characteristic thermal time constant of ∼ 1 μs, which is 5.4× slower than the theoretical thermal cavity relax-ation time. To explain this ismatch, we use a lumped circuit model containing not only the cavity temperature, but also an average temperature of the membrane. Comparison of this model to a 1D COMSOL simulation, results in a thermal time constant of the membrane that is 7.9× slower than the thermal cavity lifetime, and slows down the transient response. The membrane behaves similar to other membrane cavity types. Related Research Topics
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