{HEAD ~ A semiconductor laser} feeds {TAIL ~ a high frequency amplitude} modulated light in the transmitting fiber optic, which is projected by the transmitting optic module on the object in the form of a light spot 
feeds
{ HEAD ~ A semiconductor laser } feeds { TAIL ~ a high frequency amplitude } modulated light in the transmitting fiber optic , which is projected by the transmitting optic module on the object in the form of a light spot
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH