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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.

Patent No.:

US 12228650 B1

PDFFull Text
Date of Patent:
Feb. 18, 2025

Filed:

Feb. 24, 2021

Master-oscillator power-amplifier (mopa) light source with optical isolator

Applicant:

Luminar Technologies, Inc., Orlando, FL (US);

Inventors:

Joseph G. LaChapelle, Philomath, OR (US);

Jason M. Eichenholz, Orlando, FL (US);

Alex Michael Sincore, Orlando, FL (US);

Lawrence Shah, Winter Park, FL (US);

Assignee:

Luminar Technologies, Inc., Orlando, FL (US);

Attorney:

Van Pelt, Yi & James LLP

Primary Examiner:

Hovhannes Baghdasaryan

Int. Cl.
CPC ...
G01S 17/93 (2020.01); B60W 60/00 (2020.01); G01S 7/481 (2006.01); G01S 7/484 (2006.01); G01S 7/486 (2020.01); G01S 7/4861 (2020.01); G01S 7/4865 (2020.01); G01S 17/10 (2020.01); G01S 17/26 (2020.01); G01S 17/88 (2006.01); G01S 17/931 (2020.01); G02B 6/12 (2006.01); H01S 5/026 (2006.01); H01S 5/065 (2006.01); H01S 5/125 (2006.01);
U.S. Cl.
CPC ...
G01S 17/931 (2020.01); B60W 60/001 (2020.02); G01S 7/4814 (2013.01); G01S 7/4817 (2013.01); G01S 7/4818 (2013.01); G01S 7/484 (2013.01); G01S 7/486 (2013.01); G01S 7/4861 (2013.01); G01S 7/4865 (2013.01); G01S 17/10 (2013.01); G01S 17/26 (2020.01); G01S 17/88 (2013.01); G02B 6/12 (2013.01); H01S 5/0265 (2013.01); B60W 2420/408 (2024.01); G02B 2006/12107 (2013.01); G02B 2006/12121 (2013.01); G02B 2006/12123 (2013.01); H01S 5/0656 (2013.01); H01S 5/125 (2013.01);
Abstract

In one embodiment, a light source is configured to emit an optical signal. The light source includes a seed laser diode configured to produce a seed optical signal and a semiconductor optical amplifier (SOA) configured to amplify the seed optical signal to produce the emitted optical signal. The light source also includes an optical isolator disposed between the seed laser diode and the SOA, where the optical isolator is configured to (i) transmit the seed optical signal to the SOA and (ii) reduce an amount of light that propagates from the SOA toward the seed laser diode.

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