By TE SubCom Press Release

Monday, March 27, 2017

EATONTOWN, N.J. - TE SubCom, a TE Connectivity Ltd. company and an industry pioneer in undersea communications technology, today announced that it has demonstrated a new transmission record of 70.4 Tb/s capacity over 7,600 km. The record transmission is made possible utilizing SubCom’s newly available C+L technology, which includes amplifiers with nearly 10THz of usable optical bandwidth, a transmission line designed to minimize noise accumulation and maximize performance, a new transmission format using multi-dimensional coded modulation with hybrid probabilistic and geometrical constellation shaping, and digital signal processing featuring several stages of non-linear compensation. The results were announced at the Optical Fiber Communication (OFC) Conference 2017, which took place March 19-23 in Los Angeles, California.

As previously announced, SubCom will deploy C+L in an undersea cable system which commenced manufacturing in late 2016. SubCom’s C+L effectively doubles the available transmission bandwidth of the repeater by an unprecedented factor of two in supported capacity per fiber pair when compared to the same number of fiber pairs in traditional C-band technology. Since only half the number of fiber pairs are needed compared to a C-band repeater, C+L technology is much more cost competitive and opens the path to the record capacities that SubCom is achieving today.

“70.4 Tb/s is a staggering figure,” said Neal Bergano, chief technology officer, TE SubCom. “With accelerating data center growth, developments in virtual and augmented reality, 4k and 8k video and machine-to-machine technology, bandwidth demands will continue unabated. Cable operators will continue to seek the fastest, highest capacity and most cost-effective systems available to them, and this new record positions C+L technology as the industry standard. We couldn’t be prouder of our research and development team for this tremendous achievement.”

About TE SubCom

TE SubCom (SubCom), a TE Connectivity Ltd. company, is an industry pioneer in undersea communications technology and marine services, and a leading global supplier for today’s undersea communications requirements. As a vertically integrated supplier, SubCom designs, manufactures, deploys, and maintains the industry’s most reliable fiber optic cable systems. Its solutions include long-haul and regional systems, repeaterless networks, capacity upgrades, offshore oil and gas, and scientific research applications. SubCom brings end-to-end network knowledge and global experience to support on-time delivery and the needs of customers worldwide. To date, the company has deployed more than 100 cable systems and enough subsea communication cable to circle the globe 15 times at the equator. For more information, visit www.SubCom.com.

About TE Connectivity

TE Connectivity (NYSE: TEL) is a $12 billion global technology leader. Our commitment to innovation enables advancements in transportation, industrial applications, medical technology, energy, data communications, and the home. TE's unmatched breadth of connectivity and sensor solutions, proven in the harshest of environments, helps build a safer, greener, smarter and more connected world. With 75,000 people – including more than 7,000 engineers – working alongside customers in nearly 150 countries, we help ensure that EVERY CONNECTION COUNTS – www.TE.com.

Contact:

For TE SubCom:

Courtney McDaniel
+1 732 578 7356
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By Frederik Tilmann, Bruce M. Howe, and Rhett Butler, via PreventionWeb

Every minute counts in the business of tsunami early warning because tsunami waves often arrive less than 30 minutes after offshore earthquakes. Because most massive subduction zone quakes occur offshore, offshore observations are extremely valuable for quickly detecting and characterizing potential tsunamis. At the same time, unnecessary evacuations are costly and can endanger lives, so false warnings must be minimized.

The current Deep-ocean Assessment and Reporting of Tsunamis (DART) system uses ocean bottom pressure sensors to detect ocean-crossing tsunamis. The DART sensors are too sparse and too distant from shore to provide local warnings, and other real-time solutions like dedicated submarine detection cables come with a hefty price tag. Comprehensive coverage of all endangered subduction zones is out of reach using these systems, particularly in the developing world, but another approach that adds new capabilities to an existing resource could be a significant step in the right direction.

Today, submarine telecommunications cables cross the world’s oceans, and many run through or parallel to margins threatened by subduction zone earthquakes. The cables that currently form this network are not sensing their environment; however, these cables are routinely replaced every 10 to 15 years. Installing suitably modified repeaters along future cables, spaced at nominal 50-kilometer (31-mile) intervals, could provide power and bandwidth for sensors along these cables.

Last November, a group of research scientists, practitioners from earthquake observatories and tsunami warning centers, and engineers gathered for a workshop in Potsdam, Germany, to discuss the viability of a new early warning system that uses enhanced telecommunications cables to create a Science Monitoring and Reliable Telecommunications (SMART) network capable of detecting tsunamis and shaking from great earthquakes. They further discussed how SMART cable sensor arrays would support research into tsunami excitation and propagation, the physics of great earthquakes, and the structure of Earth.

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Press Release

New industry MSA publishes optical specifications defining 40 and 100 Gb/s transceivers for enterprise and cloud data center applications

Sunnyvale, Calif. – March 16, 2017 – The SWDM MSA (Shortwave Wavelength Division Multiplexed Multi-Source Agreement) Group today announced its formation as an industry consortium to define optical specifications and promote adoption of shortwave WDM standards for use in data center and enterprise campus applications that deploy duplex multimode fiber (MMF).  The SWDM MSA announced publication of its first two standards, defining optical specifications for four-wavelength SWDM to transmit 40 Gb/s and 100 Gb/s Ethernet signals (“40 GE SWDM4” and “100 GE SWDM4,” respectively).

MMF is by far the most common type of fiber deployed in data centers today because it allows for the use of low cost, VCSEL-based transceivers. Most data centers originally deployed 10 Gb/s optics with duplex MMF, and this paradigm is now being continued with 40 and 100 Gb/s signals.  Use of SWDM allows the same type of duplex MMF infrastructure to be used for higher data rates, greatly simplifying the upgrade of data rates at both enterprise and cloud data centers.

The SWDM specifications announced today support transmission over duplex OM3, OM4, and OM5 MMF types. Maximum reaches vary from 75 to 440 meters, depending on data rate and fiber type. In the future, SWDM technology could be leveraged to enable 200, 400, and 800 Gb/s Ethernet traffic on MMF cabling as well.

The founding members of the SWDM MSA are CommScope, Finisar, Lumentum, Hisense, OFS, and Prysmian. The SWDM MSA is affiliated with the SWDM Alliance, an industry group dedicated to the adoption of SWDM technology in data centers.  The SWDM Alliance also includes Anritsu, Corning, Dell EMC, H3C, Huawei, Juniper Networks, Panduit, Suruga Seiki, and YOFC.

More information may be found at www.swdm.org/msa.  Requests for additional information or interviews may be submitted at www.swdm.org.

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by TA Staff, March 21, 2017

Nokia and Facebook have collaborated to do spectral efficiency test of their undersea fiber network and the results were very encouraging. During the field trials the team witnessed 2.5 times more capacity than the traditional optical transmission technology.

Both the companies conducted this trial over a 5,500 km submarine cable between New York and Ireland using new optical digital processing technologies.

To increase the capacity capabilities of subsea fiber, Nokia and Facebook tested Nokia Bell Labs’ new probabilistic constellation shaping (PCS) technology. The test showed an increase of almost 2.5x more capacity than the stated optical transmission capacity of the system, demonstrating the feasibility of the technology across a challenging real-world fiber-optic network.

PCS, an area of active Nokia Bell Labs research, is a novel technique that uses ‘shaped’ quadrature amplitude modulation (QAM) formats to flexibly adjust transmission capacity to near the physical limits of a given fiber-optic link. In this first-of-its-kind experiment for an installed submarine link, conceived and planned by Facebook, PCS based on 64 QAM, combined with digital nonlinearity compensation and low-linewidth lasers, achieved a record spectral efficiency of 7.46 b/s/Hz, indicating the potential to upgrade this cable to 32 Tb/s per fiber in the future.

“Facebook wants to increase the pace of innovation and adoption of next-generation optical technologies. This field trial with Nokia demonstrates that the scalable optical technology of PCS together with narrow linewidth laser sources can achieve capacities extremely close to the Shannon limit. This ensures that we are both maximizing our investment in submarine cable systems, as well as continuing to drive the cost per bit of submarine transport lower,” said Dr. Stephen Grubb, global optical network architect at Facebook.

Transmission tests based on the commercially available Nokia Photonic Service Engine 2 (PSE-2) validated the successful transmission of 8-QAM wavelengths running at 200 Gb/s and 16-QAM wavelengths running at 250 Gb/s – a first for transatlantic transmission. 200G 8-QAM wavelengths supported a spectral efficiency of 4 b/s/Hz while exhibiting sufficient performance margin to support reliable, commercial operation.

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Press Release

Lighting up additional wavelengths in the L-band, C+L repeater technology to be utilized in contracted system scheduled for 2018 activation

EATONTOWN, N.J., January 11, 2017TE SubCom, a TE Connectivity Ltd. company and an industry pioneer in undersea communications technology, today announced that it has begun manufacturing of C+L optical transmission technology, a significant advancement for cable system operators seeking ultra-wide, low-latency transmission. C+L technology effectively doubles the available bandwidth and capacity per fiber pair. A second length of Erbium-doped fiber in the undersea repeaters provides amplification and support for wavelengths on the long wavelength side of the traditional C-band for telecommunications applications. While an evolutionary step in fiber-based amplification technology, C+L technology, which TE SubCom is currently manufacturing for a contracted system that is scheduled for activation in 2018, provides a revolutionary step in available fiber and undersea cable transmission capacity. 

For example, a transatlantic cable using eight fiber pairs equipped with C+L technology can carry an unprecedented capacity of up to 325 terabits per second. This massive transmission capacity results in an extremely low cost per transported bit and represents an exceptional value to cable operators. Furthermore, C+L’s efficient use of fiber bandwidth and the subsequent limited number of fiber pairs required for transmission capacity, enable the cable itself to remain a compact and cost-effective design. 

“This is a significant milestone for our company as we believe we’re providing our customers with the bandwidth and capacity that they need to power today’s networks, within a system that is reliable, cost-effective and ready for implementation,” said Neal Bergano, vice president and chief technology officer, TE SubCom. 

About TE SubCom

TE SubCom (SubCom), a TE Connectivity Ltd. company, is an industry pioneer in undersea communications technology and marine services, and a leading global supplier for today’s undersea communications requirements. As a vertically integrated supplier, SubCom designs, manufactures, deploys, and maintains the industry’s most reliable fiber optic cable systems. Its solutions include long-haul and regional systems, repeaterless networks, capacity upgrades, offshore oil and gas, and scientific research applications. SubCom brings end-to-end network knowledge and global experience to support on-time delivery and the needs of customers worldwide. To date, the company has deployed more than 100 cable systems and enough subsea communication cable to circle the globe 15 times at the equator. For more information, visit www.SubCom.com  

About TE Connectivity

TE Connectivity (NYSE: TEL) is a $12 billion global technology leader. Our commitment to innovation enables advancements in transportation, industrial applications, medical technology, energy, data communications, and the home. TE’s unmatched breadth of connectivity and sensor solutions, proven in the harshest of environments, helps build a safer, greener, smarter and more connected world. With 75,000 people – including more than 7,000 engineers – working alongside customers in nearly 150 countries, we help ensure that EVERY CONNECTION COUNTS - www.TE.com   

Contact:

For TE SubCom:

Courtney McDaniel

+1 732 578 7356

This email address is being protected from spambots. You need JavaScript enabled to view it.