https://doi.org/10.1051/epjconf/202328701008
Advances in silicon photonics for high-capacity optical interconnects - INVITED
Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, P.R. China.
* Corresponding author: hktsang@ee.cuhk.edu.hk
Published online: 18 October 2023
We review our recent progress on advanced silicon photonic devices and photonic circuits, including advanced grating couplers, modulators, mode and polarization division multiplexing and integrated optical signal processors for use in high capacity data center interconnects. The use of shifted polysilicon overlay gratings on waveguide grating couplers to improve coupling efficiency and polarization independence will be described. We also present our recent results on silicon microring and silicon-germanium electroabsorption modulators for 100Gbaud data transmission and their use polarization and mode division multiplexed optical fiber interconnects. We present novel integrated optical signal processors which can unscramble the mixing of polarization and mode data lanes that will occur after fiber transmission and demonstrate 400Gb/s per wavelength intensity modulation direct-detection silicon photonic transceivers.
© The Authors, published by EDP Sciences, 2023
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