Every software package contains a full set of examples suitable for that version and are installed with the software. If you see examples here that are not in your installation you should consider updating to a later version of the software. These examples can be used by beginners and advanced users for product evaluation, teaching purposes, and self-training.
Required Modules
Atlas
- Blaze
- Laser
This example demonstrates a more general solution to an edge emitting LASER, where optical intensity has variance along the direction of propagation, resulting from a DBR mirror at one end of the LASER and a tuning air gap and external mirror at the other end.
In order to leverage syntax that already existed for vertical cavity surface emitting LASERs (VCSELs), this edge emitting LASER simulation is turned on its side, so that the distributed Bragg reflector (DBR) is oriented in the same plane as for all VCSEL simulation examples. This allows us to use the same simplified syntax previously described in the VCSEL examples to create the many layers of the DBR mirror, using just two lines in the input file. The “front ” and “rear ” mirrors of the laser are therefore now at the “bottom ” and “top ” of the structure respectively.
In order to inform the simulator that this type of LASER simulation is required, specify the logical parameter HYBRID on the LASER statement.
The position of the mirror in the air gap that extends below what is the bottom of the structure in this simulation (in the Y direction), is defined by the parameter FRONTMIRROR.LOC=
Diffraction losses in the air gap can also be taken account of by specifying the new logical parameter, LOSS.DIFFRACTION in the LASER statement, whilst another new parameter HYBRID.SPECRES specifies the energy resolution in units of eV, to search for lasing modes of the whole active structure.
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