I am working on a DFB laser design, and currently I am interested in how different model parameters affect the modulation bandwidth. I use a circuit from this example and function from this example to get the bandwidth.
The problem appears when I want to see how laser length affects the bandwidth, because when I sweep over length value, TWLM divides different lengths into different number of sections, therefore output matrices are of different size, and Lumerical does not save the sweep results.
So the question is, is it possible to make a sweep over length of TWLM element in INTERCONNECT? I have a hunch that maybe I need to change sample rate value simultaneously with length, in this case the number of sections after division stays the same, but then time domain fracturing is affected, so again I get matrices of different dimensions at the output and cannot analyze the result meaningfully.