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