TECHNOLOGY & PRODUCTS
“Long-haul technologies evolve to meet growing needs.”
Matthew Peach – see page 18
First field trial for Nokia’s PSE 3 DSP technology In preparation for the roll- out of its state-of-the-art Bavarian WDM network, German operator M-net has become the first carrier wavelength over a deployed regional network, utilising PCS to shape the signal from its maximum capacity of envelope on our state-of- the-art fibre-optic network, and to be the first carrier to publicly test the PSE-3 and its probabilistic constellation shaping technology.” In an exclusive interview with Optical Connections magazine, Bucci said of PCE 3, “We now have a
solution where we pick one modulation scheme and then through PCS we are able to shape the constellation that contains the data to best fit the application that’s required in a link. We are able to do so right up against the Shannon Limit, so we maximise capacity and performance with PCS. It’s not just that we’re doubling the capacity, we’re making it truly automated and very simple to operate. No more guesswork about which modulation scheme to use.” without having to replace their existing equipment. With this next generation of technology, Ekinops is halving the per-100G port costs compared to the previous generation, while improving operational efficiency by lowering the footprint and power consumption required to deliver a gigabit of data. By delivering higher rate channels, PM 400FRS04 increases fibre capacity and at the same time it simplifies network operations as fewer wavelengths need to be managed. The PM 400FRS04-SF also provides another level of flexibility beyond its FlexRate capabilities with its support for single fibre transport. Bi-directional operation over a single fibre strand significantly reduces operational expense by allowing service providers to cut their fibre costs in half. Alternatively, single fibre operation can also be used to generate additional revenue on dual fibre spans by allowing each fibre to support different applications such as metro and long haul, and giving service providers the ability to generate better ROI from their fibre investment.
600G to a rate optimised for the specific fibre route used in the test. This high level of performance and flexibility enables M-net to maximise the capacity of every network fibre, ensuring their backbone will meet the demands of soaring video traffic and 5G mobile broadband. Dr. Hermann Rodler, CTO at M-net, said, “This field trial clearly underlines the innovative strength of M-net. We are very proud to collaborate with Nokia to push the technology
to trial Nokia’s Photonic Service Engine 3 (PSE 3) coherent digital signal processing technology. The PSE-3 is the first DSP to implement probabilistic constellation shaping (PCS), a complex signal processing technique pioneered by Bell Labs which finely adjusts the optical signal to maximise the data-carrying capacity of an optical fibre
Sam Bucci, head of optical networking at Nokia, said, “We’re excited to partner with M-net on the implementation of its new fibre optic Munich played a key role in the development of PCS, and the PSE-3 was largely developed at Nokia’s R&D facility in Nuremberg, so it’s only appropriate that the first field trial of PSE-3 technology would take place in Bavaria.” backbone network. The Technical University of Lannion, France-based Ekinops, a supplier of optical transport equipment and router solutions for service providers and telecom operators, has released its new PM 400FRS04- SF flexible rate line module. This new module triples the capacity of Ekinops’ 200G FlexRate solutions and delivers new levels of flexibility to address market demand for advanced transport capabilities. Supporting high-speed coherent line interfaces from 100Gbps to 600Gbps, the PM 400FRS04-SF provides six QSFP28 client ports aggregated to a software selectable line port that automatically configures the modulation format and baud rate to create the optimal transport link. By selecting the bit rate and distance, the PM 400FRS04- SF automatically tunes its performance based on the settings so it can support any application from very short reach, very high capacity data centre interconnect to long haul and even submarine transport. It can be installed in any Ekinops 360 chassis
over any distance. M-net successfully transmitted 500G per
Furukawa debuts new splicers for speciality fibres
Ekinops debuts 600G FlexRate solution
Furukawa Electric has debuted its FITEL S185 series of fusion splicers specifically designed for splicing specialty optical fibres used in optical components, fibre lasers, and optical sensors. The company says that as manufacturers increasingly use specialised fibres for constructing optical components and fibre lasers, conventional fusion splicers are proving unwieldy, expensive, and unsuitable for these applications. By emphasising functions critical to manufacturing and removing extraneous features, Furukawa has created the S185 Fusion Splicer series – a line of more compact, cost-effective, and efficient splicers for use in production and with specialised fibres including Polarisation-Maintaining Fibre (PM Fibre) and Large-
Diameter Fibre (LDF). The FITEL S185 Fusion Splicer series currently
features three splicers: the S185PM, the S185HS and the S185LDF. While the S185PM and S185HS splicers are designed for use with PM Fibre for optical components, the S185LDF splicer was developed for use with LDF in constructing and maintaining fibre lasers. Among the features of the S185 Fusion Splicer series are low splice loss – a new mechanism ensures even greater accuracy in fibre alignment; compact main body/footprint; portability with an optional built-in battery; easy operation by LCD screen with touch panel and clamp soft-landing, which reduces the chance of fibre damage from the canopy. A fourth splicer, the S185PMLDF, scheduled for launch in June 2019.
allowing customers to upgrade their networks
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| ISSUE 16 | Q1 2019
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