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