公开(公告)号：US20250147239A1

公开(公告)日：2025-05-08

申请号：US18816799

申请日：2024-08-27

Applicant: Raytheon Company

Inventor： Anthony D. Dichiara ,  David R. McCormick ,  Dustin R. Thielen

IPC: G02B6/293

Abstract: An apparatus includes a dichroic combiner array configured to combine multiple input optical beams and generate an output optical beam. The dichroic combiner array includes multiple mirrors and multiple dichroic filters. A first mirror is configured to reflect a first input optical beam towards a first dichroic filter, which is configured to combine the first input optical beam and a second input optical beam. A second mirror is configured to reflect a combined optical beam from the first dichroic filter to a second dichroic filter. A last dichroic filter is configured to generate the output optical beam. The apparatus also includes a beam dump array having multiple beam dumps configured to terminate stray optical energy. The stray optical energy includes at least one of: (i) optical energy reflecting from at least one of the dichroic filters and (ii) optical energy transmitted through at least one of the dichroic filters.

公开(公告)号：US12261406B2

公开(公告)日：2025-03-25

申请号：US16688535

申请日：2019-11-19

Applicant: Raytheon Company

Inventor： Justin R. Paul ,  David R. McCormick ,  Justin O. Compton

IPC: H01S3/086 ,  H01S3/00 ,  H01S3/02 ,  H01S3/139

Abstract: An apparatus includes an auto-alignment laser configured to generate an auto-alignment laser beam. The apparatus also includes a spectral beam combiner having a diffraction grating. The diffraction grating is configured to diffract multiple input laser beams to produce a combined beam having a higher power or energy compared to the individual input laser beams. The diffraction grating is also configured to diffract the auto-alignment laser beam so that a portion of the auto-alignment laser beam co-propagates in a common direction with the combined beam. Wavelengths of the input laser beams and the auto-alignment laser beam may be selected such that portions of the input laser beams and the portion of the auto-alignment laser beam diffract from the diffraction grating in the common direction. The portion of the auto-alignment laser beam that co-propagates with the combined beam may include a higher-order diffraction of the auto-alignment laser beam from the diffraction grating.

公开(公告)号：US20210151948A1

公开(公告)日：2021-05-20

申请号：US16688535

申请日：2019-11-19

Applicant: Raytheon Company

Inventor： Justin R. Paul ,  David R. McCormick ,  Justin O. Compton

IPC: H01S3/086 ,  H01S3/02 ,  H01S3/00 ,  H01S3/139

Abstract: An apparatus includes an auto-alignment laser configured to generate an auto-alignment laser beam. The apparatus also includes a spectral beam combiner having a diffraction grating. The diffraction grating is configured to diffract multiple input laser beams to produce a combined beam having a higher power or energy compared to the individual input laser beams. The diffraction grating is also configured to diffract the auto-alignment laser beam so that a portion of the auto-alignment laser beam co-propagates in a common direction with the combined beam. Wavelengths of the input laser beams and the auto-alignment laser beam may be selected such that portions of the input laser beams and the portion of the auto-alignment laser beam diffract from the diffraction grating in the common direction. The portion of the auto-alignment laser beam that co-propagates with the combined beam may include a higher-order diffraction of the auto-alignment laser beam from the diffraction grating.