There are nine total designs submitted for this fabrication run. All designs, with the exception of two, utilize a waveguide with \(500 nm\) width and \(220 nm\) height and are TE mode. Two layouts use \(450nm\) width and \(220nm\) height to compare TE and TM modes of operation.

A.   Waveguide

The simulated mode profiles for the \(500 nm\) waveguide are presented below: Fig. 1 shows the effective index, Fig. 2 is the group index, and Fig. 3 is the TE mode Electric field intensity.