Georgia Tech Publishes Paper on Ultra-Compact Low-Loss Optical Waveguide Bend Design
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On October 7, 2026, Semiconductor Engineering reported that Georgia Tech researchers published in Optics Letters a design method for ultra-compact integrated photonic waveguide bends. The method achieves low loss at an extremely small bend radius of 2.3 µm. The research team introduced a new contour constraint into the topology optimization framework, making the design less sensitive to manufacturing process variations and thus balancing process tolerance. The design also meets commercial foundry design rule check requirements and has been experimentally validated.
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- Semiconductor Engineering Chips and PackagingUltra-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.