In-line germanium avalanche photodetector

摘要

A method for manufacturing a photodetector including growing a quantity of germanium within an optical pathway of a waveguide. The detection of a current caused by an interaction between the optical signal and the germanium is used to indicate the presence of an optical signal passing through the waveguide.

主权项

1. A photodetector comprising:
a waveguide having an optical pathway; a germanium region of the photodetector located in the optical pathway, wherein an optical signal is detected upon interacting with the germanium region of the photodetector and the optical signal passes through the waveguide; and at least two implant regions adjacent to the germanium region of the photodetector.