Showing posts with label multicore. Show all posts
Showing posts with label multicore. Show all posts

Monday, October 4, 2021

Multicore fiber promises 4X capacity boost in submarine cables

NEC's subsidiary OCC Corporation and Sumitomo Electric Industries have completed the first trial of uncoupled 4-core submarine fiber cable, and verified its transmission performance to meet the exacting demands of global telecommunications networks.

The uncoupled 4-core fiber is being deployed within the OCC SC500 series LW (Lightweight) cable, which has a 17mm outer diameter and withstands 8,000 meter water depth. This cable can accommodate up to 32 fibers. With multicore fiber, the number of cores can be increased without increasing the cable diameter, with corresponding benefits in the cost per bit of the cable system.

NEC and OCC have demonstrated that the cable's optical transmission performance in the water fully meets the exacting requirements of modern long-haul submarine cables. They further showed that the process of cabling Sumitomo Electric's multicore fiber has no effect on its optical characteristics, achieving excellent attenuation properties.

This research was supported by the Ministry of Internal Affairs and Communications (MIC), Japan, under the initiative "Research and Development of Innovative Optical Network Technology for a Novel Social Infrastructure" (JPMI00316).

https://www.acnnewswire.com/press-release/english/70023/

Wednesday, August 11, 2021

Orange multi-core fibre with Infinera ICE6 800G

Orange Polska, in collaboration with Infinera and InPhoTech group, demonstrated the ability to transmit 11.2 Tb/s using multi-core fiber and Infinera ICE6 800G technology. 

The multi-core fiber, which was developed within the InPhoTech group in cooperation with the Maria Curie-Skłodowska University in Lublin and with the support of the Photonics and Fibre Optics Cluster, allows transmission in seven parallel cores simultaneously.

The experiment used two channels sending data at a speed of 1.6 Tb/s, in each of the 7 cores simultaneously. This gave a total transmission of 11.2 Tb/s. The quality of the signal measured by such parameters as Q-factor and bit error rate (BER) was fully compliant with the applicable standards.

“At Orange Polska, we know how important technological innovations are, and we are constantly testing new, advanced telecommunication solutions. We also know that the demand for high-speed transfer is growing rapidly, and the pandemic-driven spread of remote online work, learning and commerce has further accelerated this growth. In the near term, the next challenge in this area will be the deployment of the 5G technology. That’s why we’re constantly investing in the development of our infrastructure, while keeping a watchful eye on the R&D activities of industry manufacturers that could help us deliver reliable services to our customers in the future,” said Piotr Jaworski, Management Board Member in charge of Network and Technology.

“We are delighted to have partnered with Orange and Infinera to achieve record transmission. We are a pioneer in the development of next-generation multi-core optical fibres. By combining our product with Infinera’s innovative technology and testing them in Orange’s innovation lab, we were able to demonstrate record-breaking data capabilities,” said Tomasz NasiÅ‚owski, Ph.D., President of the Board of InPhoTech.

“Thanks to our tests, we already know that the transmission capability in seven-core C-band fibre is as high as 296 Tb/s. These are record numbers, but not the end of our capabilities. Using the entire transmission spectrum, i.e. all available bands – our fibre will be able to achieve throughputs at the level of petabits per second (Pb/s) or thousands of terabits. I am glad that our Polish optical fibre is becoming a real answer to the global telecommunication barriers,” said Krzysztof WitoÅ„, CEO of IPT Fiber responsible for the deployment of multi-core fibre optics.

“The success of the ICE6 trial with Orange and InPhoTech highlights the tremendous value provided by Infinera’s innovative 800G solution, which can seamlessly and effectively perform across standard fiber and new fibers like InPhoTech’s innovative multicore fiber,” – said Jan Peters, VP Business Development Infinera.

https://www.infinera.com/press-release/infinera-orange-poland-inphotech


NTT demos 118 Tbit/s transmission on multi-core fibre

NTT, together with six partners, KDDI Research, Sumitomo Electric Industries, Fujikura, Furukawa Electric, NEC and Chiba Institute of Technology (CIT), announced a demonstration of what is claimed as the highest transmission capacity of 118.5 Tbit/s using a multi-core fibre with four optical paths within the same diameter as currently used fibre.NTT noted that a conventional glass diameter of 125 µm in accordance with the international standard enables...


Saturday, April 8, 2017

NTT Carriers One Petabit per Second over Single Fiber over 200 km

NTT has demonstrated a record inline optical amplified transmission of 1 petabit (1000 terabit) per second over a 205.6 km single strand of 32-core (light paths) optical fiber.

The experimental system used 32-core fiber with a new arrangement of cores to reduce inter-core light leakage, a fan-in/fan-out (FI/FO) device to couple light into the multi-core fiber, along with new digital coherent optical transmission technology. The result aws 31.3 Tbit/s capacity per core (680 Gbit/s per wavelength x 46 wavelength channels).  Multiplied by 32 cores, adn the total transmission capacity exceeded the petabit milestone.

The test was conducted in collaboration with the Technical University of Denmark, Fujikura Ltd., Hokkaido University, the University of Southampton and Coriant.

The transmission occurred within a single optical amplifier bandwidth (C-band), which is half the bandwidth used in a previous experiment the used C-band + L-band. NTT said its research indicates that it is potentially possible to carry 1 petabit per second over 1000 km, which is approximately the distance between major cities both in Japan and in Europe.


http://www.ntt.co.jp/news2017/1703e/170323a.html#b2