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