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:
Jun. 16, 2026

Filed:

Sep. 22, 2022
Applicant:

Freedom Photonics Llc, Goleta, CA (US);

Inventors:

Paul Orville Leisher, Livermore, CA (US);

Jenna Nicole Campbell, Santa Barbara, CA (US);

Michelle Helena Labrecque, Goleta, CA (US);

Assignee:

Freedom Photonics, LLC, Santa Barbara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/042 (2006.01); H01S 5/10 (2021.01);
U.S. Cl.
CPC ...
H01S 5/04254 (2019.08); H01S 5/04256 (2019.08); H01S 5/1003 (2013.01); H01S 5/1064 (2013.01);
Abstract

Various semiconductor laser and optical amplifier designs and injection current control methods are disclosed that enable tailoring a distribution of the injection current along an active waveguide of the laser or the optical amplifier. Such configurations can be used to reduce longitudinal current crowding along the active waveguide of the laser or the optical amplifier. The electrodes and/or one or more layers of the laser or the optical amplifier may be segmented to provide a tailored longitudinal injection current distribution.


Find Patent Forward Citations

Leisher, Paul. (2026). Segmented contact for current control in semiconductor lasers and optical amplifiers (U.S. Patent No. 12658671). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12658671

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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