2022 International Conference on Solid State Devices and Materials
Sep 26 - Dec 23, 2022Makuhari Messe
2022 International Conference on Solid State Devices and Materials
Sep 26 - Dec 23, 2022Makuhari Messe
[A-10-04]Compact, Low-loss, Fabrication-tolerant, and Thermally Stable 2x2 Si Optical Coupler Designed by CMA-ES
〇Yuto Miyatake1, Kasidit Toprasertpong1, Shinichi Takagi1, Mitsuru Takenaka1(1. Univ. of Tokyo (Japan))
Presentation style: On-site (in-person)
In this paper, we propose a 2x2 optical coupler on a Si photonic platform designed using a covariance matrix adaptation evolution strategy (CMA-ES). The optimized 2x2 coupler has a small footprint (1.5 um x 10 um), low excess loss (less than 0.03 dB), and much better fabrication tolerance and thermal stability than conventional ones. These features make the proposed coupler promising for a building block of large-scale photonic integrated circuits.