Waveguide Pupil Expansion Simulator

2D ray trace through a planar waveguide: visualize in-coupling, TIR bounces, pupil replication, and out-coupling. See how core RI affects eye-box size in real time.

Interactive 2D ray tracer for AR/VR waveguide design. Watch rays bounce through the waveguide via total internal reflection. Adjust core index, cladding index, waveguide thickness, and grating parameters. See eye-box uniformity and pupil replication density. Demonstrates why higher-RI Kriya cores enable larger eye-boxes.