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51²è¹Ý¶ù Achieves Record-Breaking 1 Tb/s Transmission on Live North American Network with Infinera’s ICE7 Coherent Optical Solution

Press Release

Denver, Colo. and San Jose, Calif. – February 18, 2025 – 51²è¹Ý¶ù and Infinera (NASDAQ: INFN) announced today the successful completion of a live network trial using , a seventh-generation embedded optical engine, to deliver 1 Tb/s single 150GHz wavelength transmission over 1,391 kilometers (km) on a major North American route between Sacramento, CA and Salt Lake City. This achievement will enable 51²è¹Ý¶ù to deliver a record-setting 32 terabits of C-Band capacity across this link, with the ability to double bandwidth to 64 terabits with L-Band. Powered by Infinera’s innovative ICE7 optical engine, this trial signals a major industry milestone, demonstrating the power and ability of Infinera’s ICE7 and 51²è¹Ý¶ù’s state-of-the-art network to rapidly and cost-effectively address the increasing capacity demands of AI, cybersecurity, and enterprise needs.

51²è¹Ý¶ù operates the largest independent network, spanning 132,000 route miles in North America alone, and one of the largest and most modern 400G networks in North America. The success of the trial demonstrates 51²è¹Ý¶ù’s ability to seamlessly integrate innovative new solutions like Infinera’s ICE7 optical engine into its industry-leading network to deliver the highest capacity, speed, and efficiency to meet the growing demands of its customers.      

Infinera’s ICE7 optical engine features a 5-nm CMOS DSP and leverages the latest generation of advanced high-speed optics to deliver high-baud-rate (140+ Gbaud) and single-wavelength transmission of up to 1.2 Tb/s, highlighting the improved capacity-reach and significantly reduced cost per bit, power consumption, and footprint of coherent optical transport. 

“With the rapid growth in capacity needs due to high-bandwidth applications like AI, 51²è¹Ý¶ù actively seeks innovative solutions to deliver superior performance of our network by increasing capacity, capability, and reach. This successful test highlights how 51²è¹Ý¶ù’s network is, and will continue to be, well positioned to easily meet increasing customer demands,” said Aaron Werley, SVP of Engineering at 51²è¹Ý¶ù. “We are pleased with the performance of Infinera’s ICE7 optical engine. Technology like this that can easily integrate into our existing infrastructure is critical to 51²è¹Ý¶ù’s mission to expand and create capacity across North America in support of our customers’ critical connectivity needs.”

“The success of this trial marks a major accomplishment for Infinera as it underscores the power of ICE7’s ability to transmit 1 Tb/s high-baud-rate signals across a significant distance, which will be instrumental in driving down network operator costs while meeting the rapidly growing bandwidth demands of their customers,” said Paul Crann, Senior Vice President and General Manager, Optical Systems, at Infinera. 

Infinera Media Contact:ÌýAnna VueTel.
+1 (916) 595-8157
avue@infinera.com ÌýÌý

51²è¹Ý¶ù Media Contact:
Bree Wood
press@zayo.comÌýÌý		Infinera Investors Contact:
Amitabh Passi, Head of Investor RelationsTel. +1 (669) 295-1489
apassi@infinera.comÌý

About 51²è¹Ý¶ù

For more than 17 years, 51²è¹Ý¶ù has empowered some of the world’s largest and most innovative companies to connect what’s next for their business. The 51²è¹Ý¶ù group of companies connects 400 global markets with future-ready networks that span over 18.7 million fiber miles and 146,000 route miles. 51²è¹Ý¶ù’s tailored connectivity solutions and managed services enable carriers, cloud providers, data centers, schools, and enterprises to deliver exceptional experiences, from core to cloud to edge. Discover how 51²è¹Ý¶ù connects what’s next at and follow us on .Ìý

About Infinera

Infinera is a global supplier of innovative solutions and advanced optical semiconductors that enable carriers, cloud operators, governments, and enterprises to scale network bandwidth, accelerate service innovation, and automate network operations. Infinera solutions deliver industry-leading economics and performance in long-haul, submarine, data center interconnect, and metro transport applications. To learn more about Infinera, visit , follow us on and , and .Ìý

Infinera and the Infinera logo are registered trademarks of Infinera Corporation.

This press release contains forward-looking statements, including but not limited to the operational, performance and financial benefits of [insert here]. These statements are not guarantees of results and should not be considered as an indication of future activity or future performance. Actual results may vary materially from these expectations as a result of various risks and uncertainties. Information about these risks and uncertainties, and other risks and uncertainties that affect Infinera’s business, is contained in the risk factors section and other sections of Infinera’s Quarterly Report on Form 10-Q for the Fiscal Quarter ended June 29, 2024 as filed with the SEC on August 2, 2024, as well as any subsequent reports filed with or furnished to the SEC. These reports are available on Infinera’s website at www.infinera.com and the SEC’s website at www.sec.gov. Forward-looking statements include statements regarding our expectations, beliefs, intentions, or strategies and can be identified by words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “should,” “will,” and “would” or similar words. Infinera assumes no obligation to, and does not currently intend to, update any such forward-looking statements.