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:
Dec. 12, 2023

Filed:

Oct. 21, 2021
Applicant:

Mcmaster University, Hamilton, CA;

Inventors:

Chang-qing Xu, Dundas, CA;

Liam Flannigan, Hamilton, CA;

Joshua Kneller, Hamilton, CA;

Assignee:

McMaster University, Ontario, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/39 (2006.01); G02F 1/35 (2006.01); H01S 3/109 (2006.01); H01S 3/108 (2006.01);
U.S. Cl.
CPC ...
G02F 1/39 (2013.01); G02F 1/3534 (2013.01); G02F 1/3548 (2021.01); H01S 3/109 (2013.01); H01S 3/1083 (2013.01);
Abstract

Optical transmitters and optical receivers utilizing long wave infrared light for use with an earth-orbiting satellite communication system, and a structure including an intracavity optical nonlinear process, are described herein. The transmitters include a pumping laser diode with a fast-axis collimating lens and a pumping wavelength λ0, operating in a continuous wavelength (CW) mode. The transmitters also include a laser cavity having a beam combiner or a dichroic mirror, a laser crystal with a lasing wavelength λ1 and a difference frequency generation orientation patterned semiconductor to generate long wave-IR light. The transmitters also include a second laser at a wavelength λ2, operating in a modulation mode. The receivers have a similar structure to the transmitters, utilizing a sum frequency generation orientation patterned semiconductor to convert long wave-IR light into the short wave-IR.


Find Patent Forward Citations

Xu, Chang-qing. (2023). Apparatus of optical transmitters and receivers operating in long wave infrared wavelength ranges (U.S. Patent No. 11841599). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11841599

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

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