Dutch researchers create record-breaking 3300km optical link to Geneva
July 10, 2012 // Nick Flaherty
SURFnet, the National Research and Education Network (NREN) in the Netherlands, has demonstrated a record-breaking 3300km optical fibre link between Amsterdam and Geneva.
The 100Gbps coherent field trial between the National Supercomputing Center (SARA) in Amsterdam and CERN (Conseil Européen pour la Recherche Nucléaire - European Organization for Nuclear Research) in Geneva used single carrier technology and soft decision forward error correction (SD-FEC) on only erbium doped fiber amplifiers (EDFAs).
To further demonstrate the subsystem’s performance, the embedded fiber link comprised a combination of the relatively high-nonlinear TW+ and TWRS fibers. Furthermore, the circuit was optically looped back in Geneva, creating a 3,300km circuit. The looped-back 3,300km link operated error-free for more than 23 hours (BER<10-15) over the entire C-band and over a range of launch powers, highlighting the true upgrade potential of this link to 8Tbps in the future using 100Gbps coherent transponders.
“This trial is another clear demonstration that coherent 100Gbps PM-QPSK transmission technology is tolerant to a very large range of impairments (i.e. chromatic dispersion, polarization mode dispersion, noise) and allows the use of alien wavelengths in research networks over DWDM systems from multiple vendors,” said Roeland Nuijts, Optical Network Architect for SURFnet. “Transmission distance and tolerance against different impairments will be critical going forward as we look to build out international networks across geographic and administrative borders in order to realize a global facility for research networking.”
The subsystem from Opnext consists of a suite of OTS-100FLX 100Gbps flexponder line cards and a newly released OTS-mini ETSI shelf with a 4RU small form factor. “It is great to see the results of our 100Gbps coherent product development deliver both the capacity and reach needed to scale next-generation optical networks around the world,” said Mike Chan, President of Opnext’s subsystems business unit. “SURFnet’s 3,300km field trial really pushed us, and our 100Gbps coherent technology met the challenge.”
CEO interview: Murata succumbs to IoT temptation
November 25, 2014
Well known for its capacitors which account for nearly a third of its total revenues, Murata has been quietly reinforcing ...
ZigBee Alliance unifies application standards for Internet of Things
Can Japan get her groove back with IoT?
Packing extra charges for those long travels
GalaxyCore develops 'through-silicon' image sensor
Intel, Sheldon Cooper promote 3D camera technology
November 24, 2014
Intel has secured the services of Jim Parsons, who plays Sheldon Cooper on the comedy television series The Big Bang Theory, ...
NXP acquires Quintic's Wearable and BTLE IC business
BMW and Tesla look at car battery alliance
Interview R&S: Communications become mission-critical
- Halogen-free options and increased performance for terminal blocks
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
InterviewInterview R&S: Communications become mission-critical
Driven by new application fields in the Internet of Things (IoT) and machine-to-machine (M2M) context, communications technologies are undergoing massive changes. This goes along with enormous challenges ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Cherry is giving away five of its Energy Harvesting Evaluation kits, worth over 266 Euros each, for EETimes Europe's readers to win. Cherry's energy harvesting technology benefit mostly applications where a complex wire assembly and/or batteries would be inappropriate.
The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.
Most popular news
- Could magnesium battery innovation end lithium's dominance?
- From warm to cool white: colour-temperature tunable LEDs
- Li-Fi communication module wirelessly transfers data at 1-Gbps
- Supercapacitor innovation promises panel-powered cars in five years
- Rebranding the revolution: the future of IoT is embedded