DWDM

(Dense WDM) The term given to wavelength division multiplexing (WDM) when significantly more channels were being added. Since WDM is increasingly more "dense" all the time, both terms are used synonymously. See WDM.

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Backed by its extensive experience and leadership in DWDM technology, Nortel Networks developed the Common Photonic Layer to deliver significant simplification of DWDM optical line systems by eliminating the need for expensive circuitry found in today's line systems.

Nortel Networks unveils new platform, transforming optical networking to speed delivery of value-rich services

TDM technology can additionally be combined with DWDM to make better utilization of wavelengths.

DWDM: its time has come; it offers high bandwidth and reliability for demanding storage applications. (Tape/Disk/Optical Storage)

Hitachi Telecom's product, an enhanced version of the AMN 6100, offers unique and dynamic system adjustment based on optical switched traffic such that the DWDM system performance is automatically maintained at peak levels no matter the constant switching and traffic reconfigurations caused by either OEO or all-optical switches.

HITACHI FIRST TO DEMONSTRATE INTEROPERABILITY WITH MULTIPLE OPTICAL SWITCHES

Under the joint development agreement, NEC and Tellium plan to develop a client interface card that integrates Tellium's Aurora Optical Switch with NEC's SpectralWave 160 DWDM transponder.

NEC AND TELLIUM TO DEVELOP SIMPLIFIED GLOBAL OPTICAL NETWORK SOLUTION

Relative to traditional carrier circuit technologies, a DWDM optical network today has a capacity 14,222 times that of a D53/T3 circuit (45Mbps), about 4,129 times that of an OC3 circuit (155Mbps) and 512 times that of a single Gigabit Ethernet or Fibre Channel connection (1.