Abstract

A beam shaping approach has been implemented to realize high-performance waveguide crossings based on cosine tapers. Devices with a compact footprint of $4.7\;\unicode{x00B5}{\rm m}\, \times$$ 4.7\;\unicode{x00B5}{\rm m}$ were fabricated on the GLOBALFOUNDRIES 45 nm monolithic silicon photonics platform (45 CLO technology). Fabricated devices are found to be nearly wavelength independent ( for ) with low insertion loss () and crosstalk (). The measured response of the devices is consistent with the three-dimensional finite-difference time-domain simulation results. The design stability is validated by measuring the device insertion loss on eight chips, which is found to be at the designed center wavelength of 1310 nm.

Date

2020

Authors

Sujith Chandran, Marcus Dahlem, Yusheng Bian, Paulo Moreira, Ajey P Jacob, Michal Rakowski, Andy Stricker, Karen Nummy, Colleen Meagher, Bo Peng, Abu Thomas, Shuren Hu, Jan Petykiewicz, Zoey Sowinski, Won Suk Lee, Rod Augur, Dave Riggs, Ted Letavic, Anthony Yu, Ken Giewont, John Pellerin, Jaime Viegas

Journal

Optics Letters

Volume

45

Issue

22

Pages

6230-6233

Publisher

Optical Society of America