公开(公告)号：US10971881B2

公开(公告)日：2021-04-06

申请号：US15936534

申请日：2018-03-27

申请人： Board of Trustees of Michigan State University

发明人： Marcos Dantus ,  Vadim Lozovoy

IPC分类号： G02B26/00 ,  H01S3/00 ,  H01S3/10 ,  G02B27/09 ,  H01S3/16

摘要： A laser pulse includes a flat top shape. Another aspects provides a method and system for creating laser pulse amplification with a flat top and/or square shape, by only using phase modulation. In yet another aspect, a method and system create a flat top and/or square-shaped laser pulse in a reversible manner such that the stretched spectrum can be recompressed to their original duration with essentially no loss of pulse energy. A further aspect includes a method of making a fixed optic capable to creating flat top or square pulse amplification.

公开(公告)号：US11502473B2

公开(公告)日：2022-11-15

申请号：US16644999

申请日：2018-08-29

申请人： Board of Trustees of Michigan State University

发明人： Marcos Dantus ,  Vadim Lozovoy

IPC分类号： H01S3/00

摘要： A laser apparatus includes an optic dispersion compensator. In another aspect, an optic (40, 45) uses phase wrapping to compress or stretch a laser pulse. A further aspect includes an apparatus and method for binary-phase compression of stretched laser pulses. In yet another aspect, a single monolithic transmissive or reflective optic (40, 45) provides compression or stretching of a laser pulse using a sinusoidal pattern for introducing binary steps. Another aspect provides a stretching or compressing optic (40, 45) for retarding a phase of multiple frequency regions of a laser pulse by a factor of 2? or less. Still another aspect employs a volume grating or multi-layer mirror including phase wrapping to obtain discontinuous phase jumps in a laser pulse compressor (45) or stretcher (40). Methods of using or making the laser apparatus are also provided.

公开(公告)号：US20180219346A1

公开(公告)日：2018-08-02

申请号：US15936534

申请日：2018-03-27

申请人： Board of Trustees of Michigan State University

发明人： Marcos Dantus ,  Vadim Lozovoy

IPC分类号： H01S3/00 ,  H01S3/10 ,  G02B27/09

CPC分类号： H01S3/0057 ,  G02B27/0927 ,  G02B27/0944 ,  H01S3/0085 ,  H01S3/10053 ,  H01S3/1625 ,  H01S3/1636

摘要： A laser pulse includes a flat top shape. Another aspects provides a method and system for creating laser pulse amplification with a flat top and/or square shape, by only using phase modulation. In yet another aspect, a method and system create a flat top and/or square-shaped laser pulse in a reversible manner such that the stretched spectrum can be recompressed to their original duration with essentially no loss of pulse energy. A further aspect includes a method of making a fixed optic capable to creating flat top or square pulse amplification.