“Submarine cable fibre systems support 99% of international telecommunications traffic”
INDUSTRY NEWS
JohnWilliamson - see page 16
XGS-PON OLT spending up over 500% year on year
According to a newly published report by Dell’Oro Group, total global revenue for the Broadband Access equipment market increased
being deployed in roles as diverse as FTTH/FTTP, high- speed residential and business services, mobile anyhaul, triple play, video streaming and HDTV, smart cities and the IoT, and rural telecommunications provision. A recent demonstration of the ultimate reach performance of Lumenisity’s NANF ® hollowcore cable suggests that there appears to be no fundamental limits to the technology’s data transmission distances, according to the company. The demonstration was carried out by the Politecnico di Torino university and the LINKS Foundation research group in their joint PhotoNext lab facility. Using the lab’s advanced testing set-up, some channels reached almost 6,000km.
• Total PON ONT revenue was down quarter over quarter, but unit shipments
• Total broadband access equipment revenue was down 6% from the record revenue of 4Q 2020. • Total cable access concentrator revenue increased 15% year-on- year to US$243 million. Though DOCSIS license purchases were down, new hardware purchases in the form of CCAP chassis, line cards, and DAA nodes and modules helped push revenue higher.
remained above 30 M globally for the second straight quarter.
to US$3.3 B in 1Q 2021, up 18% year-on-year,
with growth coming from spending on PON OLT ports, particularly 10 Gbps PON technologies. “The shift to 10 Gbps PON technologies is happening quickly and on a global basis,” noted Jeff Heynen, Vice President, Broadband Access and Home Networking at Dell’Oro Group. “The only thing preventing further expansions are supply chain constraints and increased costs.” Additional highlights from the 1Q 2021 Broadband Access and Home Networking quarterly report:
The Dell’Oro Group Broadband Access and
Home Networking Quarterly Report provides an overview of the Broadband Access market with tables covering manufacturers’ revenue, average selling prices, and port/unit shipments for Cable, DSL, and PON equipment. Next Generation Symmetric- Passive Optical Network (XGS- PON) is rapidly becoming the optical broadband technology du jour for different operators around the world, writes journalist John Williamson, in the spring edition of Optical Connections. It is currently
• Total DSL Access
Concentrator revenue was down 30% year-on- year, driven by slower port shipments worldwide as more operators shift their spending to fibre.
‘No fundamental limits’ for Lumenisity’s hollowcore fibre
Lumenisity’s CoreSmart ® hollowcore cable solutions use Nested Anti-resonant Node-less Fibre (NANF) patented technology. Using the latest version of the technology with reduced inter-modal interference (IMI), the PhotoNext lab reported record new transmission distances. 11.5kmof 5-tube NANFs were used in two recirculating loop experiments. The first comprised of NANF and some PSCF (Pure Silica Core Fibre), where 41xPM-QPSK C band channels at 32GBaudwere recirculated up to 2,070km. The second recirculating loop used only NANF, pushing themaximum reach further and achieving 4,020km, with several channels reaching beyond 5,000km. Lumenisity says its CoreSmart ® NANF ® technology is robustly single-moded which provides
data transmission over 300 metres of photonic bandgap fibre. Fast forward eight years, change the technology to NANF and add invaluable collaborations with Lumenisity and the PhotoNext Lab, and multi-thousand kilometres become possible. There is more work still to be done, but the future looks bright for hollowcore fibres”. Mike Fake, Lumenisity’s director responsible for Product Management, said, “These results in fibre are complementary to those we have reported this week in deployable cable formats and further underpins our confidence in the technology platform we are bringing to market for high-capacity networks with the promise of not only achieving this in the Metro Network today but also in long reach applications in the future.”
with the ORC at Southampton and now with Lumenisity too, to prove the potential of NANF in all segments of optical systems and networks. The results have been so far fantastic.” Dr. Antonino Nespola, Head of the PhotoNext laboratory for the LINKS Foundation commented, “The transmission distance presented at this year’s OFC post-deadline session is more than six times longer than the previous record reported at OFC last year. At the current rate of improvement, the low loss and ultralow nonlinearity across very wide bandwidths could make NANF the trustable candidate for increasing the throughput and capacity of the next-generation optical systems”. Prof. Francesco Poletti added, “Hollowcore technology has made giant steps in recent years. At an OFC post deadline session in 2013 we reported
continuous, uninterrupted, simultaneous single mode transmission at 1,310nm, as well as over the full C and L bands and beyond, offering the promise of realising loss values at, or better than, conventional solid silica core fibres. It adds that the results show that the development of NANF® technology has substantially reduced IMI. As the current loss (~1dB/km) is reduced to levels comparable to standard fibres in the near future, while maintaining the IMI shown in these experiments, NANF could become a promising alternative for higher-throughput long haul systems and networks. Prof. Pierluigi Poggiolini, Coordinator of the OptCom Group of Politecnico di Torino, said, “NANF is one of the most exciting technologies currently on the optical landscape. We believed in it early on and started a close collaboration
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| ISSUE 24 | Q2 2021
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