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A question about VCSEL simulation
Posted Oct 27, 2017, 12:18 a.m. EDT Semiconductor Devices, Wave Optics Version 5.2 0 Replies
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Howdy,
I'm using comsol to do vcsel design. The modules included in my model is semiconductor and wave electromagnetic, Frequency domain, the study in my model is Frequency-stationary.
Port has been added in the cavity; and now, the device works if I enter certain power and frequency in the port definition and sweeping frequency (the frequency is within the spectrum of my MQW LED between two DBRs, and the power is 1mW). I can read the spantaneous emission and the stimulated emission.
But the question is, well, the power is given by the quantum well, actually; but how can I descirbe that in the incident power of the port? And the sweeping frequency should be determined by the spectrum of the central MQW LED, how can I describe the frequency. They should be expressions instead of certain values.
In LED simulation, I know how to read the spectrum and its corresponding intensity, but if I enter these expressions to be my incident power and sweeping frequency, they cannot be recognized. I don't know how to transfer the value; especially for the power, it is a variable as time goes by.
Great appreciate if you give me any idea. Chen Gong
Hello Chen Gong
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