Four-channel graphene optical receiver.

ABSTRACT: Silicon photonics with the advantages of low power consumption and low fabrication cost is a crucial technology for facilitating high-capacity optical communications and interconnects. The graphene photodetectors (GPDs) featuring broadband operation, high speed, and low integration cost can be good additions to the SiGe photodetectors, supporting high-speed photodetection in wavelength bands beyond 1.6 μm on silicon. Here we realize a silicon-integrated four-channel wavelength division multiplexing (WDM) optical receiver based on a micro-ring resonator (MRR) array and four p-n homojunction GPDs. These photo-thermoelectric (PTE) GPDs exhibit zero-bias responsivities of ∼1.1 V W^-1 and set-up limited 3 dB-bandwidth >67 GHz. The GPDs show good consistence benefiting from the compact

SUBMITTER: Yu L 

PROVIDER: S-EPMC11501057 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature