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Ciena Corporation is a United States-based global supplier of telecommunications networkingequipment, 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 Linthicum, Maryland. The company's market capitalisation, as of c. Q4 2009, was ~$1.1 billion.
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