{HEAD ~ The focused pulsed laser output power} may correspond to {TAIL ~ about 10 50 mw} with a spot diameter of less than about 15 μm 
correspond to
{ HEAD ~ The focused pulsed laser output power } may correspond to { TAIL ~ about 10 50 mw } with a spot diameter of less than about 15 μm
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH