公开(公告)号：US11894660B2

公开(公告)日：2024-02-06

申请号：US17304269

申请日：2021-06-17

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh

IPC分类号： H01S5/34 ,  H01S5/10 ,  H01S5/22

CPC分类号： H01S5/3402 ,  H01S5/1007 ,  H01S5/1014 ,  H01S5/1082 ,  H01S5/22

摘要： A QCL may include a substrate, and a semiconductor layer adjacent the substrate. The semiconductor layer may define branch active regions, and a stem region coupled to output ends of the branch active regions. Each branch active region may have a number of stages less than 30.

公开(公告)号：US10177535B1

公开(公告)日：2019-01-08

申请号：US15450575

申请日：2017-03-06

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh

IPC分类号： H01S5/34 ,  H01S5/12

摘要： A quantum cascade laser may include a substrate, and a semiconductor layer adjacent the substrate and defining an active region. The active region may have an elongate shape extending laterally across the substrate and having first and second lowest injector states with an energy spacing greater than 20 meV. In some embodiments, the active region may have a thickness less than or equal to 1.3 μm and a length greater than or equal to 20 μm. The quantum cascade laser may also include an optical grating adjacent the active region and configured to emit a continuous wave laser output through the substrate. The optical grating may include a curved grating pattern.

公开(公告)号：US10020635B1

公开(公告)日：2018-07-10

申请号：US15488620

申请日：2017-04-17

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh

IPC分类号： G01J3/00 ,  H01S5/068 ,  H01S5/12 ,  H01S5/34 ,  H01S5/40 ,  H01S5/0687 ,  G01J3/42 ,  G01J3/10

CPC分类号： H01S5/06821 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01J2003/2866 ,  H01S5/0653 ,  H01S5/0687 ,  H01S5/12 ,  H01S5/3401 ,  H01S5/4025 ,  H01S5/4043 ,  H01S5/4087

摘要： A spectrometer device may include a first QCL configured to operate in a frequency comb mode with spectrally equidistant modes with stable relative phase, a power supply coupled to the first QCL, and a controller coupled to the power supply. The first QCL may include different active region layers based on a vertical transition. The first QCL may be configured to provide a comb output having a cumulative flat gain profile and reduced dispersion refractive index profile in a broad range of driving conditions. The spectrometer device may include a sample cell configured to receive the comb output.

公开(公告)号：US12034276B2

公开(公告)日：2024-07-09

申请号：US17938817

申请日：2022-10-07

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh ,  Matthew Suttinger

IPC分类号： H01S5/34 ,  H01S5/026 ,  H01S5/20 ,  H01S5/22

CPC分类号： H01S5/3402 ,  H01S5/026 ,  H01S5/20 ,  H01S5/22

摘要： A QCL may include a substrate, and a sequence of semiconductor epitaxial layers adjacent the substrate and defining an active region, an injector region adjacent the active region, and a waveguide optically coupled to the active region. The active region may include stages, each stage having an upper laser level and a lower laser level defining respective first and second wave functions. The upper laser level may have an upper laser level average coordinate, and the lower laser level may have a lower laser level average coordinate. The upper laser level average coordinate and the lower laser level average coordinate may have spacing of less than 10 nm. Wave functions for all active region energy levels located below the lower laser level may have greater than 10% overlap with the injector region.

公开(公告)号：US11509114B2

公开(公告)日：2022-11-22

申请号：US17004205

申请日：2020-08-27

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh

IPC分类号： H01S5/34 ,  H01S5/10 ,  H01S5/06 ,  H01S5/125 ,  H01S5/40 ,  H01S5/12 ,  H01S5/20 ,  H01S5/227 ,  H01S5/065 ,  H01S5/22

摘要： 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.

公开(公告)号：US20210399521A1

公开(公告)日：2021-12-23

申请号：US17304269

申请日：2021-06-17

申请人： University of Central Florida Research Foundation, Inc.

发明人： Arkadiy Lyakh

IPC分类号： H01S5/10 ,  H01S5/34 ,  H01S5/22

摘要： A QCL may include a substrate, and a semiconductor layer adjacent the substrate. The semiconductor layer may define branch active regions, and a stem region coupled to output ends of the branch active regions. Each branch active region may have a number of stages less than 30.

公开(公告)号：US10811847B2

公开(公告)日：2020-10-20

申请号：US16136713

申请日：2018-09-20

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh ,  Matthew Suttinger

IPC分类号： H01S5/34 ,  H01S5/026 ,  H01S5/20 ,  H01S5/22

摘要： A QCL may include a substrate, and a sequence of semiconductor epitaxial layers adjacent the substrate and defining an active region, an injector region adjacent the active region, and a waveguide optically coupled to the active region. The active region may include stages, each stage having an upper laser level and a lower laser level defining respective first and second wavefunctions. The upper laser level may have an upper laser level average coordinate, and the lower laser level may have a lower laser level average coordinate. The upper laser level average coordinate and the lower laser level average coordinate may have spacing of less than 10 nm. Wave functions for all active region energy levels located below the lower laser level may have greater than 10% overlap with the injector region.

公开(公告)号：US10673209B2

公开(公告)日：2020-06-02

申请号：US16029947

申请日：2018-07-09

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh ,  Matthew Suttinger

IPC分类号： H01S5/34 ,  H01S5/22 ,  H01S5/343 ,  H01S5/022 ,  H01S5/062 ,  H01S5/227 ,  H01S5/024 ,  H01S5/10

摘要： A QCL may include a substrate, and a semiconductor layer adjacent the substrate and defining an active region. The active region may have an elongate shape extending laterally across the substrate and having a number of stages greater than 25, each stage having a thickness less than 40 nanometers. The active region may have a ridge width greater than 15 μm.

公开(公告)号：US10790637B2

公开(公告)日：2020-09-29

申请号：US16401515

申请日：2019-05-02

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh

IPC分类号： H01S5/34 ,  H01S5/10 ,  H01S5/06 ,  H01S5/125 ,  H01S5/40 ,  H01S5/12 ,  H01S5/20 ,  H01S5/227 ,  H01S5/065 ,  H01S5/22

摘要： 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.

公开(公告)号：US10355449B2

公开(公告)日：2019-07-16

申请号：US15677572

申请日：2017-08-15

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Arkadiy Lyakh

IPC分类号： H01S5/00 ,  H01S5/10 ,  H01S5/06 ,  H01S5/125 ,  H01S5/34 ,  H01S5/40 ,  H01S5/12 ,  H01S5/20 ,  H01S5/227 ,  H01S5/065 ,  H01S5/22

摘要： 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.