A hybrid AlGaInAs-silicon evanescent waveguide photodetector.
We report a waveguide photodetector utilizing a hybrid waveguide structure consisting of AlGaInAs quantum wells bonded to a silicon waveguide. The light in the hybrid waveguide is absorbed by the AlGaInAs quantum wells under reverse bias. The photodetector has a fiber coupled responsivity of 0.31 A/W with an internal quantum efficiency of 90 % over the 1.5 mum wavelength range. This photodetector structure can be integrated with silicon evanescent lasers for power monitors or integrated with silicon evanescent amplifiers for preamplified receivers.
Park
Hyundai
H
University of California, Santa Barbara, Department of Electrical and Computer Engineering, Santa Barbara, CA 93106, USA. hdpark@engr.ucsb.edu
Fang
Alexander W
AW
Jones
Richard
R
Cohen
Oded
O
Raday
Omri
O
Sysak
Matthew N
MN
Paniccia
Mario J
MJ
Bowers
John E
JE