Waveguide coupled III-V photodiodes monolithically integrated on Si.

ABSTRACT: The seamless integration of III-V nanostructures on silicon is a long-standing goal and an important step towards integrated optical links. In the present work, we demonstrate scaled and waveguide coupled III-V photodiodes monolithically integrated on Si, implemented as InP/In_0.5Ga_0.5As/InP p-i-n heterostructures. The waveguide coupled devices show a dark current down to 0.048 A/cm² at -1 V and a responsivity up to 0.2 A/W at -2 V. Using grating couplers centered around 1320 nm, we demonstrate high-speed detection with a cutoff frequency f_3dB exceeding 70 GHz and data reception at 50 GBd with OOK and 4PAM. When operated in forward bias as a light emitting diode, the devices emit light centered at 1550 nm. Furthermore, we also investigate the self

SUBMITTER: Wen P 

PROVIDER: S-EPMC8854727 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature