Ciena Corp

Hanover, MD 21076


About Ciena Corp



7035 Ridge Rd
Hanover, MD 21076
United States

More Info on Ciena Corp

Offers network infrastructure solutions, intelligent software and a comprehensive services practice. Software-centric optical and Ethernet platforms combines network element programmability, operating systems commonality and management unifications.


(Courtesy of Ciena)
FIGURE 1. A typical 100 Gbit/s (100G) two-polarization quadrature phase-shift keying (QPSK) modulation format modem is a primary component in a coherent communications system.

FIBERS FOR TELECOMMUNICATIONS: Can standard fibers perform in next-gen coherent communications systems?

Coherent communications systems offer increased capacity and spectral efficiency while preserving optical reach and agility on the existing fiber plant; however, the optimization...
Gain-locked, gain-flattened EDFAs can support the addition of more channels to DWDM systems because of their tolerance for signal variations. In this double-forward pumping scheme, two pumps emit 120 mW at 980 nm; fiber Bragg gratings and long-period fiber Bragg gratings provide gain flattening and equalization.

Flat and fixed-gain amplifiers simplify dense-WDM design

Erbium-doped fiber amplifiers incorporating all-optical gain control and equalization enable multiple-wavelength communications.

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