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. 05, 2021

Filed:

May. 03, 2019
Applicant:

Intel Corporation, Santa Clara, CA (US);

Inventors:

Ganesh Balamurugan, Hillsboro, OR (US);

Haisheng Rong, Pleasanton, CA (US);

Meer Nazmus Sakib, Berkeley, CA (US);

Hao Li, Hillsboro, OR (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01); G01J 1/16 (2006.01); G01J 1/42 (2006.01); H01L 31/0203 (2014.01); G02B 6/12 (2006.01); G01J 1/02 (2006.01); G01J 3/26 (2006.01);
U.S. Cl.
CPC ...
G01J 1/1626 (2013.01); G01J 1/0228 (2013.01); G01J 1/0252 (2013.01); G01J 1/0295 (2013.01); G01J 1/4228 (2013.01); G01J 1/44 (2013.01); G01J 3/26 (2013.01); G02B 6/12 (2013.01); H01L 31/0203 (2013.01); G02B 2006/12061 (2013.01);
Abstract

Embodiments of the present disclosure are directed toward techniques and configurations for a photonic apparatus with a photodetector with bias control to provide substantially constant responsivity. The apparatus includes a first photodetector, to receive an optical input and provide a corresponding electrical output; a second photodetector coupled with the first photodetector, wherein the second photodetector is free from receipt of the optical input; and circuitry coupled with the first and second photodetectors, to generate a bias voltage, based at least in part on a dark current generated by the second photodetector in an absence of the optical input, and provide the generated bias voltage to the first photodetector. The first photodetector is to provide a substantially constant ratio of the electrical output to optical input in response to the provision of the generated bias voltage. Additional embodiments may be described and claimed.


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