The use of acousto optic devices for {HEAD ~ spatially splitting beams} in {TAIL ~ material processing applications} is known in the art 
in
The use of acousto optic devices for { HEAD ~ spatially splitting beams } in { TAIL ~ material processing applications } is known in the art
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH