|Traded as||NASDAQ: CIEN|
|Key people||Patrick Nettles
(President and CEO)
|Products||Networking systems & products|
|Revenue||$1.83 Billion USD (FY 2012)|
|Net income||-$144 Million USD (FY 2012)|
Ciena Corporation is a United States-based global supplier of telecommunications networking equipment, software and services that support the delivery and transport of voice, video and data services. Its products are used in telecommunications networks operated by telecommunications service providers, cable operators, governments and enterprises. The company was founded in 1992 and is headquartered in Hanover, Maryland.
Ciena sells products and services across four segments: Converged Packet Optical, Packet Networking, Optical Transport, and Software & Services. Ciena’s product portfolio consists of Packet-Optical Transport, Packet-Optical Switching and Carrier Ethernet Solutions products. Key current platforms include the 6500 Packet-Optical Platform, 5430 Reconfigurable Switching System, CoreDirector Multiservice Optical Switch, 3000 family of service delivery switches, and the 4200 Advanced Services Platform. It also offers the Ciena One integrated network and service management software suite, consulting and support services, deployment services, maintenance and support services, spares and logistics management.
Notable Acquisitions 
In March 2010, Ciena completed the acquisition of Nortel's Metro Ethernet Networks (MEN) division for $773.8 million after bidding against Nokia Siemens Networks and winning the auction. The company inherited transport and switch products including the Optical Multi-Service Edge 6500 (OME 6500), Optical Metro 5000 (OM 5000), Common Photonic Layer (CPL), Metro Ethernet Routing Switch 8600 (MERS 8600) and Nortel's coherent 40G/100G Adaptive Optical Engine with Dual Polarization Quadrature Phase Shift Keying (DP-QPSK) modulation.
In 2008 Ciena acquired World Wide Packets that brought together two players in the carrier Ethernet market.
In 2004, Ciena acquired Internet Photonics and Catena Networks.
Ciena acquired Akara in 2003 which created disaster recovery technology that lets enterprises send data across telco networks for safe keeping. Also in 2003 Ciena acquired WaveSmith Networks Inc.
- Morgenson, Gretchen. "Ciena Corporation". Companies (New York Times). Archived from the original on 24 November 2009. Retrieved 24 November 2009.
- "Ciena Corp Moving HQ to Station Ridge in Hanover". citybizlist Baltimore. citybizlist.
- "Ciena Reports Fiscal First Quarter 2013 Financial Results". Ciena Corp.
- "Ciena 2012 Annual Report". Ciena Corp.
- "Carrier Gear Vendor Ciena Buys World Wide Packets". PCWorld.
- "Ciena Buys Catena, Internet Photonics". Light Reading.
- "Ciena buys Ottawa outfit". IT World Canada.
- "Ciena Nabs WaveSmith". Light Reading.
- Gimpelson, Terri; Ciena buys ONI for $900 million, The Edge (reported by NetworkWorldFusion), 19 February 2002, retrieved 14 January 2013
- "Ciena to Acquire Lightera Networks, Omnia". Telecompaper.
- "Ciena Acquires Terabit Technology". Telecompaper.
- "Ciena to buy equipment installer ATI Telecom would enable acquirer to do 'the whole package'". The Baltimore Sun.