Looking to support the inevitable growth in demand for data transmission over fiber, NTT and six partners recently set a new transmission capacity record, reaching 118.5 Tbit/s over regular thickness optical fiber.
"A conventional glass diameter (125 micrometer) in accordance with the international standard enables us to use existing optical fiber fabrication and optical connector technologies effectively," the release said. "This achievement proves the concept of multi-core fiber-based long-haul and large capacity transmission system consisting of multiple vendor technologies, and it makes significant progress on practical use of the multi-core fiber technology."
The partnership resulted in three major achievements, according to NEC:
Between four and five cores will fit within a 125 µm glass diameter and retain the transmission quality of current optical fiber.
It realizes a 316-kilometer multi-core transmission line with 0.21 dB/km average loss concatenating the standard diameter multi-core fibers (4 cores) fabricated by multiple vendors randomly.
It achieves transmission capacity of 118.5 Tbit/s via standard-diameter optical fiber and a multi-core transmission system composed of multi-core transmission line, multi-core optical amplifiers and existing optical connectors.
The companies expect the new standard multi-core fiber to become available in the early 2020s.
Prior research into multi-core fiber with ten or more cores has typically required thicker glass; this translates into requiring advances into fabrication processes and sub-component development, as well as logistical hurdles related to the different size, according to background material from NEC. As a result, it would take at least a decade for operators to use multi-core fiber and meet the data demands of data center and central office customers.
After collecting 42 million speed tests for 12 months, Cable.co.uk analyzed the data to determine the fastest broadband in the United States, finding tiny Rhode Island led the way, followed by Washington and Massachusetts.
Google Fiber executives such as Cedric Lam will share insight into PON and smart cities during Broadband World Forum, providing a peek into the currently publicity-shy webscale communications disruptor.
Webscale companies' $2.5 billion investment in communications technologies last year pales in comparison to established industry providers' $400 billion expenditures, and signals it's time for partnership, not oneupmanship.
5G promises connectivity 10 to 100 times faster than 4G networks, with latencies less than 1msec, making real-time applications such as tactile Internet useable over mobile networks for the first time. However, mobile operators will need to deploy ten times as many radio sites, each with highly reliable plug-and-go multi-gigabit connections, to achieve that level of performance.
In this UBB2020 webinar, Heavy Reading's Gabriel Brown and ADTRAN's Ryan McCowan will:
Discuss 5G densification strategies and their network impact
Outline the different requirements for backhaul and fronthaul needed to support 5G densification strategies
Explore next-generation PON-fixed access technologies and software defined networking principles as emerging solutions to accelerate 5G densification
Outline how NG-PON2, the next-generation multi-gigabit fiber technology, supports the x-haul (fronthaul, backhaul and crosshaul applications) requirements of 5G
NG-PON2 broadband access technology is already in trials with multiple major network operators but is it too early for the commercial deployment of this next generation ultra-broadband technology? In this UBB2020 live radio show, ADTRAN's Kurt Raaflaub provides an update on NG-PON2 developments and chats to Light Reading's Ray Le Maistre about how this technology could play a role in production access networks in 2017.