Ultra-Compact Photonic Bends Reduce Loss While Meeting Foundry Rules (Georgia Tech)
Georgia Tech researchers published an ultra-compact integrated photonic waveguide bend design method in Optics Letters, achieving low loss at an extremely small radius of 2.3 µm. The method introduces new contour constraints in a topology optimization framework, reducing sensitivity to manufacturing process variations while satisfying commercial foundry design rule checks, and has been experimentally validated.