公开(公告)号：US11251578B2

公开(公告)日：2022-02-15

申请号：US17009462

申请日：2020-09-01

申请人： KERN TECHNOLOGIES, LLC

发明人： Paul E Jackson ,  Aaron M Kern

IPC分类号： H01S3/08 ,  H01S3/03 ,  H01S3/223

摘要： A laser resonator comprising a specially designed front mirror 32. The front mirror 32 together with a rear mirror form a resonator cavity. As well as having a resonator cavity reflective surface 42, the front mirror 32 also has an output coupling reflective surface 44 which forms a continuation of the resonator cavity reflective surface 42 and extends at an angle thereto so as to direct a beam laterally out of the cavity. The output coupling reflective surface 44 and the resonator cavity reflective surface 44 are joined by a “soft” rounded edge 40 of arcuate cross-section, this rounded transition suppressing diffraction ripples that would otherwise be generated if the edge were “hard”, i.e. sharp.

公开(公告)号：US11942753B2

公开(公告)日：2024-03-26

申请号：US17025439

申请日：2020-09-18

申请人： KERN TECHNOLOGIES, LLC

发明人： Paul E Jackson ,  Gerald L Kern ,  Jacob D Colby ,  Aaron M Kern ,  Tyler P Schmidt ,  Keith L Weiher

IPC分类号： H01S3/03 ,  H01S3/034 ,  H01S3/07 ,  H01S3/08 ,  H01S3/08045 ,  H01S3/081 ,  H01S3/097 ,  H01S3/223

CPC分类号： H01S3/08095 ,  H01S3/0315 ,  H01S3/034 ,  H01S3/076 ,  H01S3/08045 ,  H01S3/08059 ,  H01S3/0813 ,  H01S3/09702 ,  H01S3/08063 ,  H01S3/0816 ,  H01S3/0818 ,  H01S3/2232

摘要： A folded slab waveguide laser having a hybrid waveguide-unstable resonator cavity. Multiple slab waveguides of thickness ‘t’ supporting vertical waveguide modes are physically arranged above one another in a stack and optically arranged in series through one or more cavity folding assemblies with curved mirrors. A gain medium such as a gas is arranged in each slab. Each cavity folding assembly is designed to redirect the radiation beam emitted from one slab waveguide into the next waveguide and also at the same time to provide a focus for the radiation beam so that a selected vertical waveguide mode (or modes) is (or are) coupled efficiently into the next slab.

公开(公告)号：US10811838B2

公开(公告)日：2020-10-20

申请号：US16364004

申请日：2019-03-25

申请人： KERN TECHNOLOGIES, LLC

发明人： Paul E Jackson ,  Gerald L Kern ,  Jacob D Colby ,  Aaron M Kern ,  Tyler P Schmidt ,  Keith L Weiher

IPC分类号： H01S3/08 ,  H01S3/03 ,  H01S3/034 ,  H01S3/097 ,  H01S3/07 ,  H01S3/081 ,  H01S3/223

摘要： A folded slab waveguide laser having a hybrid waveguide-unstable resonator cavity. Multiple slab waveguides of thickness ‘t’ supporting vertical waveguide modes are physically arranged above one another in a stack and optically arranged in series through one or more cavity folding assemblies with curved mirrors. A gain medium such as a gas is arranged in each slab. Each cavity folding assembly is designed to redirect the radiation beam emitted from one slab waveguide into the next waveguide and also at the same time to provide a focus for the radiation beam so that a selected vertical waveguide mode (or modes) is (or are) coupled efficiently into the next slab.