Multisegment coherent beam combining

Daniel R. Neal, Steve D. Tucker, R. Morgan, Tony G. Smith, Mial E. Warren, James K. Gruetzner, R. R. Rosenthal, A. E. Bentley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


Scaling laser systems to large sizes for power beaming and other applications can sometimes be simplified by combining a number of smaller lasers. However, to fully utilize this scaling, coherent beam combination is necessary. This requires measuring and controlling each beam's pointing and phase relative to adjacent beams using an adaptive optical system. We have built a sub-scale brass-board to evaluate various methods for beam-combining. It includes a segmented adaptive optic and several different specialized wavefront sensors that are fabricated using diffractive optics methods. We have evaluated a number of different phasing algorithms, including hierarchical and matrix methods, and have demonstrated phasing of several elements. The system is currently extended to a large number of segments to evaluate various scaling methodologies.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsRobert K. Tyson, Robert Q. Fugate
Number of pages14
StatePublished - 1995
Externally publishedYes
EventAdaptive Optical Systems and Applications - San Diego, CA, USA
Duration: Jul 10 1995Jul 11 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherAdaptive Optical Systems and Applications
CitySan Diego, CA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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