These are various applications of Neural Networks and Linear Regressions we've trained to estimate effective indices.
SiPANN.nn.straightWaveguide
SiPANN.nn.straightWaveguide_S
SiPANN.nn.bentWaveguide
SiPANN.nn.bentWaveguide_S
SiPANN.nn.evWGcoupler
SiPANN.nn.evWGcoupler_S
SiPANN.nn.racetrack_AP_RR
SiPANN.nn.racetrack_AP_RR_TF
SiPANN.nn.rectangularRR