{HEAD ~ Each plurality} of optical elements further tiles its received corrected optical field into {TAIL ~ a plurality} of third optical fields 
{ HEAD ~ Each plurality } of optical elements further tiles its received corrected optical field into { TAIL ~ a plurality } of third optical fields
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH