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US 2023/0131797 A1Published application
Quantum cascade laser system with angled active region
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorArkadiy LYAKH
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Abstract
A QCL may include a substrate, an emitting facet, and semiconductor layers adjacent the substrate and defining an active region. The active region may have a longitudinal axis canted at an oblique angle to the emitting facet of the substrate. The QCL may include an optical grating being adjacent the active region and configured to emit one of a CW laser output or a pulsed laser output through the emitting facet of substrate.
Claims20
A quantum cascade laser (QCL) comprising:
- a substrate;
- at least one emitting facet;
- semiconductor layers adjacent the substrate and defining an active region;
- the active region having a longitudinal axis canted at an oblique angle to the at least one emitting facet;
- first and second cladding layers surrounding the active region;
- and
- an optical grating being adjacent the active region and configured to emit one of a continuous wave (CW) laser output or a pulsed laser output through the at least one emitting facet.
4 more elements
A quantum cascade laser (QCL) system comprising:
- at least one QCL comprising
- a substrate,
- at least one emitting facet,
- semiconductor layers adjacent the substrate and defining an active region,
- the active region having a longitudinal axis canted at an oblique angle to the at least one emitting facet,
- first and second cladding layers surrounding the active region, and
- an optical grating being adjacent the active region and configured to emit one of a continuous wave (CW) laser output or a pulsed laser output through the at least one emitting facet;
- and
- a driver circuit coupled to the at least one QCL.
6 more elements
A method for making a quantum cascade laser (QCL) comprising:
- forming a substrate and at least one emitting facet;
- forming semiconductor layers adjacent the substrate and defining an active region;
- the active region having a longitudinal axis canted at an oblique angle to the at least one emitting facet;
- forming first and second cladding layers surrounding the active region;
- and
- forming an optical grating being adjacent the active region and configured to emit one of a continuous wave (CW) laser output or a pulsed laser output through the at least one emitting facet.
3 more elements
Dependencies are inferred from the claim text.