PIN photodetector
AssigneeAttollo Engineering, LLC
InventorsJonathan Geske, Andrew Hood, Michael MacDougal
Life of this patent
Estimating the term…
Abstract
A PIN photodetector includes an n-type semiconductor layer, an n-type semiconductor cap layer, a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1, and an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions. The plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.
Claims21
A PIN photodetector comprising:
- an n-type semiconductor layer;
- an n-type semiconductor cap layer;
- a first plurality of p-type regions located within the n-type semiconductor cap layer and separated from one another by a distance d1;
- an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer including the first plurality of p-type regions;
- and
- wherein the first plurality of p-type regions are electrically connected to one another to provide an electrical response to light incident to the PIN photodetector.
An optical detection system comprising:
- a PIN photodetector comprising:
- an n-type semiconductor layer;
- an n-type semiconductor cap layer
- a plurality of p-type diffusion regions diffused within the n-type semiconductor cap layer and separated from one another by a distance d1;
- an absorber layer located between the n-type semiconductor layer and the n-type semiconductor cap layer, wherein the plurality of p-type diffusion regions are capable of generating a plurality of depletion regions within the absorber layer, wherein each of the depletion regions are separated from adjacent depletion regions by a distance d3;
- and
- a signal conditioning circuit connected to receive the electrical response generated by the PIN photodetector, wherein the signal conditioning circuit is characterized by a bandwidth.
Dependencies are inferred from the claim text.