Power of a Quantum Cascade laser by theory

[Adrian Tudini]

hi

Just a little question. How does one calculate the power of a QCL by theory? Is there any free software that allows one to calculate the power of a inputted laser medium for a qcl?

Thanks.

Adrian

 

[f95toli]

I don't think I can be of any help; but even I can tell the question is a bit vague.
By "power" do you mean the maximum output power of the QCL?

I would have thought that this would be an "engineering" problem rather than a QM problem as such. The max output should(?) presumably be limited by the thermal properties of the actual device rather than intrinsic properties of a given material.
There would also(?) be difference between peak and CW power, and both numbers would be related to what kind of MTBF you can tolerate.

I'm pretty sure I've seen some COMSOL examples for laser diodes which included thermal modelling; not sure about QCL.

But I'm just guessing.