Ciena® Corporation (NYSE: CIEN) today announced its expected participation in the following upcoming event with the financial community. The event will be webcast live and recorded. Archived versions are expected to be made available approximately one hour following the presentation of the live event in the investors section of Ciena’s website at www.ciena.com.

15th Annual Raymond James North American Equities Conference

London, UK

September 10, 2019 @ 5.20 AM Eastern Time (10.20 AM UK time)

Speaker: Jim Moylan Senior Vice President, Finance and Chief Financial Officer