The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 15, 2019

Filed:

Jul. 28, 2017
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Igal I. Bayn, New York, NY (US);

Sean P. Anderson, Macungie, PA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0232 (2014.01); H01L 31/028 (2006.01); H01L 31/0352 (2006.01); H01L 31/02 (2006.01); G01S 7/491 (2006.01); G02B 6/42 (2006.01); H01L 31/0224 (2006.01); H01L 31/024 (2014.01); H01L 31/103 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02325 (2013.01); G01S 7/4913 (2013.01); G02B 6/42 (2013.01); H01L 31/024 (2013.01); H01L 31/028 (2013.01); H01L 31/02027 (2013.01); H01L 31/02327 (2013.01); H01L 31/022408 (2013.01); H01L 31/035281 (2013.01); H01L 31/103 (2013.01);
Abstract

Embodiments herein describe photonic systems that include a germanium photodetector thermally coupled to a resistive element. Current flowing through the resistive element increases the temperature of the resistive element. Heat from the resistive element increases the temperature of the thermally coupled photodetector. Increasing the temperature of the photodetector increases the responsivity of the photodetector. The bias voltage of the photodetector can be increased to increase the bandwidth of the photodetector. In various embodiments, the photodetector includes at least one waveguide to receive light into the photodetector. Other embodiments include multiple resistive elements thermally coupled to the photodetector.


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