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:
Apr. 14, 2025

Filed:

Sep. 05, 2023
Applicant:

Silc Technologies, Inc., Monrovia, CA (US);

Inventors:

Prakash Koonath, La Crescenta, CA (US);

Shuren Hu, Arcadia, CA (US);

Mehdi Asghari, La Canada Flintridge, CA (US);

Bradley Jonathan Luff, La Canada Flintridge, CA (US);

Behnam Behroozpour, South San Francisco, CA (US);

Assignee:

SiLC Technologies, Inc., Monrovia, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2005.12); G01S 7/481 (2005.12); G01S 7/499 (2005.12); G01S 17/32 (2019.12); G02B 6/12 (2005.12); G02B 6/27 (2005.12); G02B 6/28 (2005.12); G02F 1/01 (2005.12);
U.S. Cl.
CPC ...
G01S 17/32 (2012.12); G01S 7/481 (2012.12); G01S 7/4817 (2012.12); G01S 7/499 (2012.12); G02B 6/12004 (2012.12); G02B 6/2773 (2012.12); G02B 6/2813 (2012.12); G02F 1/0136 (2012.12);
Abstract

Systems and methods described herein are directed to polarization separation of incoming light signals associated with an imaging system, such as a Light Detection and Ranging (LIDAR) system. Example embodiments describe a system configured to direct incoming light signals to a polarization separator and capture the two polarization states of the incoming light signals. The system may process the two polarization states of the incoming light signals separately to extract information associated with reflecting objects within the field-of-view of the imaging system. The polarization separator may be a birefringent crystal positioned adjacent to an edge of a photonic integrated circuit (PIC) that is used for processing outgoing and incoming light signals associated with the imaging system. The PIC may include at least one on-chip polarization rotator for converting a light signal of one polarization state to a light signal of another polarization state.


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