0000950133-98-000275 DEF 14A 1 19980311 19980206 NASD CIENA CORP 0000936395 3661 232725311 DE 1031 DEF 14A 34 000-21969 98523559 8530 CORRIDOR RD SAVAGE MD 20763 3013175800 8530 CORRIDOR RD SAVAGE MD 20763 DEF 14A 1 000095013398000275-001-seq1-def-14a.txt CIENA CORPORATION DEF 14A