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  

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 –   


For TE SubCom:

Courtney McDaniel

+1 732 578 7356

[email protected]