Modeling and simulation method for terahertz quantum cascade laser circuit based on heat effect
A technology of quantum cascade and simulation methods, applied in the field of lasers, can solve problems such as lack of
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[0094] One, at first, introduce the theoretical knowledge that the present invention relates to.
[0095] 1. Theoretical basis.
[0096] Circuit modeling for THz QCL is the key to simulating THz QCL optoelectronic integrated circuit with the simulation method of microelectronic circuit. The essence of circuit simulation is to solve first-order differential equations about time, and if the performance of optoelectronic devices can be described by first-order differential equations (groups) about time, then optoelectronic devices must be written as an equivalent circuit. Whether it is a semiconductor laser as the core device of an optoelectronic integrated circuit or other light emitting and photodetecting devices, a set of rate equations can be used to describe its performance. For THz QCL, a set of rate equations describing its performance has its own particularity. First, THz QCL is a monopole intersubband transition laser, that is, only one kind of carrier (electron) emits...
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