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.:
Date of Patent:
Jul. 14, 2020
Filed:
Jul. 17, 2018
Thorlabs, Inc., Newton, NJ (US);
Praevium Research, Inc., Santa Barbara, CA (US);
Vijaysekhar Jayaraman, Goleta, CA (US);
Kevin Lascola, Columbia, MD (US);
Stephen Segal, Columbia, MD (US);
Fredrick Towner, Fulton, MD (US);
Alex Cable, Newton, NJ (US);
Thorlabs, Inc., Newton, NJ (US);
Praevium Research, Inc., Santa Barbara, CA (US);
Abstract
Disclosed is an optically pumped vertical cavity laser structure operating in the mid-infrared region, which has demonstrated room-temperature continuous wave operation. This structure uses a periodic gain active region with type I quantum wells comprised of InGaAsSb, and barrier/cladding regions which provide strong hole confinement and substantial pump absorption. A preferred embodiment includes at least one wafer bonded GaAs-based mirror. Several preferred embodiments also include means for wavelength tuning of mid-IR VCLs as disclosed, including a MEMS-tuning element. This document also includes systems for optical spectroscopy using the VCL as disclosed, including systems for detection concentrations of industrial and environmentally important gases.