{TAIL ~ An optical semiconductor device} includes a plurality of electrodes formed on a common side of {HEAD ~ a substrate} 
{ TAIL ~ An optical semiconductor device } includes a plurality of electrodes formed on a common side of { HEAD ~ a substrate }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD