{TAIL ~ Element} for optical isolator and optical isolator employing the same, together with semiconductor laser module employing {HEAD ~ the optical isolator element} 
{ TAIL ~ Element } for optical isolator and optical isolator employing the same , together with semiconductor laser module employing { HEAD ~ the optical isolator element }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD