[A-10-04] Compact, Low-loss, Fabrication-tolerant, and Thermally Stable 2x2 Si Optical Coupler Designed by CMA-ES | 2022 International Conference on Solid State Devices and Materials

2022 International Conference on Solid State Devices and Materials

2022年9月26日〜12月23日幕張メッセ

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2022 International Conference on Solid State Devices and Materials

2022年9月26日〜12月23日幕張メッセ

[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))

https://doi.org/10.7567/SSDM.2022.A-10-04

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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.

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