公开(公告)号：US20250141185A1

公开(公告)日：2025-05-01

申请号：US18934858

申请日：2024-11-01

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Luke Milbocker ,  Michael Milbocker ,  Arkadiy Lyakh

IPC: H01S5/10 ,  H01S5/34

Abstract: A quantum cascade laser (QCL) may include multiple branch waveguide regions having one or more laser cores providing optical gain at one or more output wavelengths, a stem waveguide region, and multiple couplers arranged to couple light from the plurality of branch waveguide regions to the stem waveguide region. Each of the couplers may include two or more curved waveguide regions having a continuously-varying radius of curvature providing that a fundamental transverse mode at the output wavelengths is dominant, and a coupler to combine light from the two or more curved waveguides and maintain dominance of the fundamental transverse mode at the output wavelengths. The fundamental transverse mode at the output wavelengths may be dominant in output light from the stem waveguide.