100 Gigabit for the metro

ADVA Optical Networking has launched a 100 Gigabit transmission card designed for metro wavelength-division multiplexing (WDM) applications.

The firm claims this is an industry first: a direct-detection-based 100 Gigabit-per-second (Gbps) design using four, 28Gbps channels rather than current 10x10Gbps schemes.

"Data centre operators want to make best use of the fibre insfrastructure and get lower overall cost, footprint and power consumption"

Jörg-Peter Elbers, ADVA Optical Networking

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Bringing WDM-PON to market

Significant power, size and cost challenges must be overcome before WDM-PON will be widely deployed.

 "We see just one way to bring down the cost, form-factor and energy consumption of the OLT’s multiple transceivers: high integration of transceiver arrays"

Klaus Grobe, ADVA Optical Networking

Considerable engineering effort will be needed to make next-generation optical access schemes using multiple wavelengths competitive with existing passive optical networks (PONs).

Such a multi-wavelength access scheme, known as a wavelength division multiplexing-passive optical network (WDM-PON), will need to embrace new architectures based on laser arrays and reflective optics, and use advanced photonic integration to meet the required size, power consumption and cost targets.

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Reflecting light to save power

CIP Technologies is bringing its reflective component expertise to an EU-funded project to reduce the power consumption of optical systems.  

System vendors will be held increasingly responsible for the power consumption of their telecom and datacom platforms. That’s because for each watt the equipment generates, up to six watts is required for cooling. It is a burden that will only get heavier given the relentless growth in network traffic.

"Enterprises are looking for huge capacity at low cost and are increasingly concerned about the overall impact on power consumption"

David Smith, CIP Technologies

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