Mode-Expanded Bus Architecture for Non-Sensitive Waveguide Alignment in Vertically-Coupled Microring

• Main Authors: TEE, Chyng Wen, Williams, K. A., Penty, R. V., White, I. H., Hamacher, M., Troppenz, U., Heidrich, H.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2006
• Subjects: Communication; Networking & Broadcasting; Components; Circuits; Devices & Systems; Engineered Materials; Dielectrics & Plasmas; Photonics & Electro-Optics; Signal Processing & Analysis; Physical Sciences and Mathematics
• Online Access: https://ink.library.smu.edu.sg/lkcsb_research/3355; https://doi.org/10.1109/ECOC.2006.4801189
• Institution: Singapore Management University

We demonstrate experimentally a five-fold improvement in fabrication tolerance for vertically-coupled microrings using a mode-expanded bus waveguide. The power coupling coefficient is observed to vary by only 6% for misalignment as high as 1um.