AWG receiver

The AWG receiver was a 20 channel AWG with 20 HSP photodiodes on Si nanowires (220nm height). The AWGs seem to have been damaged during hybrid processing and did not work as designed.

Processing

Bonding defects

Quantum well lithography misalignment

Mesa lithography misalignment

Wet etch difficulties

Data

AWG pre-bond spectra

Photodetector IV curves

AWG post-bond spectra (measured with on-chip PDs)