Steve Alexander's 30-Year Journey at Ciena

After three decades of shaping optical networking technology, Steve Alexander is stepping down as Ciena's Chief Technology Officer (CTO).

His journey, from working on early optical networking systems to helping to implement AI as part of Ciena’s products, mirrors the evolution of telecommunications itself.

The farewell

"As soon as you say, 'Hey guys, you know, there's an end date', certain things start moving," says Alexander reflecting on his current transition period. "Some people want to say goodbye, others want more of your time."

After 30 years of work, the bulk of it as CTO, Alexander is ready to reclaim his time, starting with the symbolic act of shutting down Microsoft Outlook.

"I don't want to get up at six o'clock and look at my email and calendar to figure out my day,” he says.

His retirement plans blend the practical and the fun. The agenda includes long-delayed home projects and traveling with his wife. "My kids gave us dancing lessons for a Christmas present, that sort of thing," he says with a smile.

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ADVA's 100 Terabit data centre interconnect platform

• The FSP 3000 CloudConnect comes in several configurations
• The data centre interconnect platform scales to 100 terabits of throughput
• The chassis use a thin 0.5 RU QuadFlex card with up to 400 Gig transport capacity
• The optical line system has been designed to be open and programmable

ADVA Optical Networking has unveiled its FSP 3000 CloudConnect, a data centre interconnect product designed to cater for the needs of the different data centre players. The company has developed several sized platforms to address the workloads and bandwidth needs of data centre operators such as Internet content providers, communications service providers, enterprises, cloud and colocation players.

Certain Internet content providers want to scale the performance of their computing clusters across their data centres. A cluster is a grouping of distributed computing comprising a defined number of virtual machines and processor cores (see Clusters, pods and recipes explained, bottom). Yet there are also data centre operators that only need to share limited data between their sites.

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OFC 2014 product round-up - Part 1

Part 1: Line-side technologies

 

Technologies for 100 Gigabit were prominent at this year's OFC conference and exhibition held in San Francisco earlier this month.

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Amplifiers come to the fore to tackle agile network challenges

The growing sophistication of high-speed optical transmission based on 100 Gigabit-plus lightpaths and advanced ROADMs is rekindling interest in amplifier design.

Raman is a signature of the spread of 100 Gig but also the desire of being upgradable to higher bit rates

Per Hansen, II-VI

For the last decade, amplifier designers have been tasked with reducing the cost of Erbium-doped fibre amplifiers (EDFAs). "Now there is a need for new solutions that are more expensive," says Daryl Inniss, vice president and practice leader, components at market research firm, Ovum. "It is no longer just cost-cutting."

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Xtera demonstrates 40 Terabit using Raman amplification

Feature: 100 Gig and Beyond. Part 2

• Xtera's Raman amplification boosts capacity and reach
• 40 Terabit optical transmission over 1,500km in Verizon trial
• 64 Terabit over 1,500km in 2015 using a Raman module operating over 100nm of spectrum  

Herve Fevrier

Optical transport equipment makers continue to research techniques to increase the data carried long distances over a fibre without sacrificing reach. The techniques include signal processing of the transmit signal to cram data-carrying channels closer in the C-band, advanced soft-decision forward error correction (SD-FEC) and receiver signal processing to counter transmission impairments.

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ROADMs and their evolving amplification needs

Technology briefing: ROADMs and amplifiers

Oclaro announced an add/drop routing platform at the recent OFC/NFOEC show. The company explains how the platform is driving new arrayed amplifier and pumping requirements.  

A ROADM comprising amplification, line-interfaces, add/ drop routing and transponders. Source: Oclaro

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