I am working on laser simulation on Silvaco/Atlas. The code I am using is provided by silvaco in the examples (laserex13 ) that implements external cavity. I have changed in the code to make the active region quantum well instead of simple well. The code provides two types of spectrum files, the first one is defined in the LASER statement and I do not have any problem with this file I can see results from these files. the problem is in the second type which is defined in the SAVE statement. When the code reaches this line it can not save the spectrum file properly and this error message appears: ( Process interrupted by signal SEGV). I am not sure whether the problem is within the models and the parameters I have used to simulate the quantum well or there is something else that I do not know. I would like to mention that when I remove the lines that save the spectrum files (in the save statements) the code is fine and no problems appear.
Hi Sara, can you post both the LASER and SAVE statement you are using so that we can see if we can spot a syntax error?
Hi Sara,
The manual says this:
If SPEC.NAME="filename" is specified, the modal spectrum file
"modal_filename_X.log" will be generated after each bias point, where X=1,2,3,... .
Alternatively, modal spectrum can also be saved using the SPECTRUM="filename"
parameter on the SAVE statement, which will generate a "modal_filename.log" file. (In the latter case, if quantum wells are present, the additional file "filename.log" will be stored, which will contain gain and spontaneous emission of each quantum well).
It looks like you have spec.name correctly specified on the LASER statement, so do you still need to have it on the save statement at different bias points? Have you tried removing it from the LASER statement and just having on the SAVE statement?
Alex
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