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Apparatus for coherent beam combining in an array of laser collimators

Patent image
CCDC ARL

A method and apparatus for coherent beam combining in an array of laser beam collimators. The array of laser beam collimators includes an array of a plurality collimating lenses, each lens intercepting a respective one of a plurality of divergent laser beams. Each collimating lens is joined with adjacent collimating lenses such that an output aperture is formed with a common vertex of the adjacently joined collimating lenses. A concave mirror is positioned a distance from the common vertex for receiving a fraction of each of the collimated laser beams that passed through a portion of each of the collimating lenses that are adjacent to the common vertex, and then providing reflected fractional collimated laser beams. A sensor intercepts the reflected fractional collimated laser beams so as to provide a signal that is applied to synchronize the phase of each of the collimated laser beams.

Inventors: 
Beresnev, Leonid A.; Liu, Jony J.; Carhart, Gary W.
Patent Number: 
Technical domain: 
Optics
FIle Date: 
2013-09-27
Grant Date: 
2016-09-27
Grant time: 
1,096 days
Grant time percentile rank: 
20
Claim count percentile rank: 
6
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY