公开(公告)号：US20240063597A1

公开(公告)日：2024-02-22

申请号：US18500035

申请日：2023-11-01

申请人： Lawrence Livermore National Security, LLC

发明人： Hoang T. Nguyen ,  Michael C. Rushford ,  Brad Hickman

IPC分类号： H01S3/00 ,  G02B27/09 ,  G02B27/10 ,  H01S3/08 ,  H01S3/23

CPC分类号： H01S3/005 ,  G02B27/0944 ,  G02B27/1006 ,  H01S3/08009 ,  H01S3/2391

摘要： A spectral beam combining system includes a spectral channel splicer comprising a plurality of reflectors and a spectral beam combiner comprising a diffraction optical element such as a diffraction grating. The spectral beam combining system may further comprise at least one additional diffractive optical element or diffraction grating for dispersion compensation that reduces the effects of angular dispersion of wavelength components within the input channel. This spectral beam combining system facilitates combining an increased number of wider spectral channels thereby potentially allowing higher optical power, e.g., within each fewer channel lasers. The combined beam focal spot shape profile is maintained as spectrum width or central spectrum wavelength of any one or all input channels is changed.