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 µm× 4.7 µm are implemented on a GLOBALFOUNDRIES monolithic silicon photonics platform. Fabricated devices are found to be nearly wavelength-independent (±0.035 dB for 1260 nm≤ λ≤ 1360 nm) with low insertion loss (~ 0.2 dB) and crosstalk (<-35 dB). The measured response of the devices is consistent with simulation results obtained by 3D FDTD computations. The design stability is confirmed by measuring the device insertion loss over nine chips, which is found to be 0.197±0.017 dB at the designed center wavelength of 1310 nm.

Date

July 13, 2020

Authors

Sujith Chandran, Yusheng Bian, Paulo Moreira, Ajey Jacob, Marcus S Dahlem, Yonas Gebregiorgis, Marios Papadovasilakis, Salim Alkaabi, Jaime Viegas, Michal Rakowski, Andy Stricker, Karen Nummy, Colleen Meagher, Bo Peng, Abu Thomas, Shuren Hu, Jan Petykiewicz, Dave Riggs, Ted Letavic, Anthony Yu, Ken Giewont, John Pellerin

Conference

Integrated Photonics Research, Silicon and Nanophotonics

Pages

ITh3A. 4

Publisher

Optica Publishing Group