NeoPhotonics showcases a CFP2-ACO roadmap to 400G

NeoPhotonics has begun sampling its CFP2-ACO, a pluggable module for metro and long-haul optical transport. 

The company demonstrated the CFP2-ACO module transmitting at 100 gigabit using polarisation multiplexed, quadrature phase-shift keying (PM-QPSK) modulation at the recent OFC show. The line-side module is capable of transmitting over 1,000km and also supports PM-16QAM that doubles capacity over metro network distances.

Ferris LipscombThe CFP2-ACO is a Class 3 design: the control electronics for the modulator and laser reside on the board, alongside the coherent DSP-ASIC chip.

At OFC, NeoPhotonics also demonstrated single-wavelength 400-gigabit transmission using more advanced modulation and a higher symbol rate, and a short-reach 100-gigabit link for inside the data centre using 4-level pulse-amplitude modulation (PAM4) signalling. 

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BT makes plans for continued traffic growth in its core

Briefing: DWDM developments

Part 1

Kevin Smith: “A lot of the work we are doing with the trials have demonstrated we can scale our networks gracefully rather than there being a brick wall of a problem.”

BT is confident that its core network will accommodate the expected IP traffic growth over the next decade. Traffic in BT’s core is growing at between 35 and 40 percent annually, compared to the global average growth rate of 20 to 30 percent. BT attributes its higher growth to the rollout of fibre-based broadband across the UK.

The telco is deploying 100-gigabit wavelengths in high-traffic areas of its network. “These are key sites where we're running out of wavelengths such that we need to implement higher-speed ones,” says Kevin Smith, research leader for BT’s transport networks. The operator is now trialling 200-gigabit wavelengths using polarisation multiplexing, 16-quadrature amplitude modulation (PM-16QAM).

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Acacia unveils 400 Gigabit coherent transceiver

• The AC-400 5x7 inch MSA transceiver is a dual-carrier design
• Modulation formats supported include PM-QPSK, PM-8-QAM and PM-16-QAM
• Acacia’s DSP-ASIC is a 1.3 billion transistor dual-core chip 

Acacia Communications has unveiled the industry's first flexible rate transceiver in a 5x7-inch MSA form factor that is capable of up to 400 Gigabit transmission rates. The company made the announcement at the OFC show held in Los Angeles. 

Dubbed the AC-400, the transceiver supports 200, 300 and 400 Gigabit rates and includes two silicon photonics chips, each implementing single-carrier optical transmission, and a coherent DSP-ASIC. Acacia designs its own silicon photonics and DSP-ASIC ICs.

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Infinera details Terabit PICs, 5x100G devices set for 2012

What has been announced?

Infinera has detailed Terabit coherent detection photonic integrated circuits (PICs). The pair - a transmitter and a receiver PIC – implement a ten-channel 100 Gigabit-per-second (Gbps) link using polarisation multiplexing quadrature phase-shift keying (PM-QPSK). The Infinera development work was describe in papers given at the OFC/NFOEC event held in Los Angeles.

Infinera recently demonstrated its 5x100Gbps PIC carrying traffic within Interoute Communications’ network. The 5x100Gbps PIC-based system will be available commercially in 2012.

 

“We think we can drive the system from where it is today – 8 Terabits-per-fibre - to around 25 Terabits-per-fibre”

Dave Welch, Infinera 

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CyOptics gets $50m worth of new investors and funding

Optical component firm CyOptics has received a US $50million investment. Gazettabyte discussed the company’s activities and plans with CEO, Ed Coringrato, and Stefan Rochus, the company’s vice president of marketing and business development. 

“Volume production scale is very important to having a successful business”

Ed Coringrato, CyOptics

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Alcatel-Lucent reveals its 100Gbps-coherent hand

“It would be irresponsible of any system vendor to overlook a solution that can bring a cost advantage to their customer”

Sam Bucci, Alcatel-Lucent

What is being announced?

• Alcatel-Lucent has a commercially available 100Gbps optical transmission system.
• 40Gbps coherent transmission is also supported.

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Infinera PICs 100Gbps coherent

What is being announced?

Infinera is expediting its product plans, basing its optical transmission roadmap on coherent detection.

The company plans to launch a 100Gbps coherent transmission system in 2012. The design will be based on a pair of 5x100Gbps ultra-long-haul photonic integrated circuit (PIC) chips to enable its systems to deliver 8 terabits-per-second (Tbps) over a fibre.

“This change in roadmap is because of the successful development of our 100G coherent ASIC programme, and we have integrated five 100Gbps coherent channels onto one card.”

Drew Perkins, Infinera

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