Optical Transport: LambdaDriver WDM Optical Modules

LambdaDriver®

WDM / Optical Modules

The Lambda Driver consists of several unique optical components performing distinct functions to deliver transport services. Fundamentally two groups of components exist which can be classified as active and passives devices. Passive devices are typically bordered by active devices at the client edge of the network and the transport (WDM) side of the network.

Transponders and muxponders condition client connections and convert them for transport on the network (WDM) side of the system. These connections are aggregated by passive optical components (CWDM and DWDM) including OADM (Optical Add Drop Multiplexers) or a combination of optical multiplexers and demultiplexers. The combination of transponders and these fundamental passive optical components formulates the basic WDM transport system.

ROADM (Reconfigurable Optical Add Drop Multiplexers) adds a level of automation in the provisioning, balancing and monitoring of high density optical networks. Once physically installed and cabled, any optical service can be added, dropped, blocked or passed from a centralized network management system.

Other components provide feature and performance enhancements to increase distance and combat the non-linear effect of optical fiber transmission. Erbium Doped Fiber Amplifiers (EDFA) or Raman Amplifiers can enrich optical budgets to great extend transmission distances to several hundred kilometers. Dispersion Compensation Units can correct accumulated dispersion to further increase transmission distances.

In mission critical environments fiber path protection can be easily employed by the use of Redundancy Optical Switches. These devices can take any optical transport system and provide path redundancy to maintain optimum system availability. When a path is no longer able to support communications due to media faults, the system will automatically restore communications via a designated protected path.

This combined collection of optical components provides the necessary items needed to support enterprise, regional and carrier communications infrastructures.

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