The optical isolator element may be formed with a rectangular configuration in conformity to the arranged form of a plurality of {HEAD ~ laser active regions} of {TAIL ~ a laser array} 
of
The optical isolator element may be formed with a rectangular configuration in conformity to the arranged form of a plurality of { HEAD ~ laser active regions } of { TAIL ~ a laser array }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL