CIENA CORP

ex101conflictmineralsrepor.htm

ex101conflictmineralsrepor.htm

ex101conflictmineralsrepor.htm

ex101conflictmineralsrepor.htm

ex101conflictmineralsrepor.htm

ex101conflictminrprt2021.htm

ex101conflictminrprt2020.htm

ex101-2019conflictsmineral.htm

ex101conflictsmineral.htm

d404402dex11.htm

exhibit101-conflictsminera.htm

ex101-conflictsmineralsrep.htm

exhibit101-conflictsminera.htm

exhibit101.htm

ex11lab10leaseamendingagre.htm

w35820exv1w01.htm

w19463exv1w01.htm

z44413a2ex1-1.txt

z44413a2ex1-2.txt

EX-1.1.txt