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Alcatel-Lucent Further Advances 100G Transmission By Integrating Advanced Developments In Next-Generation Coherent Detection On Its Optical Platforms
Published Dec 23, 2009
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Alcatel-Lucent announced it has enhanced its optical networking portfolio with next-generation coherent technology that allows operators to deal, in a cost-effective and automated manner, with transmission impairments which become extremely severe at speeds higher than 100 Gigabits per second (Gbit/s).
Leveraging advanced developments and proprietary algorithms in digital signal processing, the next generation coherent detection functionality was successfully demonstrated in a 112 Gbit/s field trial over an existing, heavy loaded real-traffic fiber link of Telefonica’s network during which live traffic was transmitted over 1,088 km between four cities, in Spain.
Alcatel-Lucent is implementing next-generation coherent detection in key optical platforms with the goal of helping service providers transform their existing networks to ease the strain caused by high bandwidth applications, while maintaining superior performance. Additionally, the technology will seamlessly support further evolution to higher speeds than 100G over the same future-proof platform when the market dictates.
“Traditional network providers and a new breed of Web 2.0 service providers, the likes of Google, Facebook and others, are looking at managing the strong increase in traffic demand by leveraging 100G technology to achieve cost efficient high-capacity transport between their router sites,” said Ron Kline, Principal Analyst, Network Infrastructure, Ovum.
“Regardless of the modulation format used, a critical element to achieve 100G transmission over long-haul and ultra long-haul distances is to decrease the transmitted baud rate so that optical impairments such as dispersion are controlled, and, to have an effective coherent receiver to be able to recover the modulated signal.”
“The advancements to our optical portfolio further confirm the role of optical networking as a critical enabler for competitive transformation to seamlessly move to higher capacities fast and reliably,” said Romano Valussi, president of Alcatel-Lucent’s Optics activities. “In combination with our customer focus is set to help operators accelerate time to service for new applications, simplify their operations and improve performance for better total cost of ownership.”
Alcatel-Lucent’s optical networking portfolio allows for dynamic wavelength assignment and restoration, as well as transmission of any hybrid traffic mix.
Ensuring the optimized use of existing fiber plants, it can transmit mixed 10, 40 and 100G signals without the need for guard bands or network reengineering, and traverse multiple nodes without additional regeneration. As a result, operators can implement highly-flexible and scalable meshed transmission networks to cost-effectively carry services in response to end customer demands, today and in the future.
These advancements add to Alcatel-Lucent’s long series of optical networking breakthroughs including the 100 Petabit per second kilometer world record achieved in September in Alcatel-Lucent’s Bell Labs, the invention of Dense Wave Division Multiplexing (DWDM), the introduction of non-zero dispersion fiber, the first worldwide 100 Gigabit Ethernet field trial, and Differential Phase-Shift Keying (DPSK) at 40 Gigabits per second, the most widely used in 40 Gigabit per second systems worldwide.
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VMD - [Virtual Marketing Department]
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