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Australia Japan Cable Trials Infinera’s Advanced Coherent Algorithms for Next-generation Optical Engines PDF Icon

San Jose, Calif. – March 14, 2023, 8:00 a.m. ET – Infinera (NASDAQ: INFN), announced today Australia Japan Cable (AJC) is the first to trial Infinera’s advanced coherent algorithms for next-generation optical engines. The evolution of advanced signal processing algorithms is critical to continuing to drive down the cost and power per bit of transmission as well as increasing capacity per fiber. The trial was conducted over a 7,289-km segment of the AJC cable system between Paddington, New South Wales, Australia and Tumon Bay, Guam. The trial delivered a 17% increase in total fiber pair capacity compared to the current generation of optical engine deployed in AJC’s network.

The AJC cable system was brought into service in 2001 with a design life of greater than 25 years. Its design predates the introduction of coherent transponders by almost a decade. Capacity growth in the Pacific region is around 35-40% per year, making the increase of capacity on submarine cables more critical than ever.

This trial leveraged Infinera’s advanced development testbed used for comparative algorithm testing, which included a high-performance arbitrary waveform generator-based transmitter, a receiver based on high-performance photodiodes, and a real-time oscilloscope. The trial tested advanced modulation, forward error correction (FEC), and nonlinear compensation algorithms.

“With the enormous cost and the delay of several years to gain approval permits for new cable systems, it is important to find ways to extend the economic life of existing cables like ours,” said David Crofts, CEO, Australia Japan Cable. “Older submarine cables tend to exhibit higher optical penalties compared to newer cables, but by deploying advanced modulation and compensation techniques, it is still possible to squeeze additional capacity from these valuable assets, as this trial demonstrates.”

“Collaboration with key network operators, like AJC, helps us to bring our innovative concepts from the lab to real-world environments and is a critical part of Infinera’s continuous drive to increase the value delivered by optical transmission solutions,” said Robert Maher, Infinera CTO, Optical Modules & Coherent Solutions. “The more capacity we can squeeze out of deployed fiber optic cables using advanced transponder designs and innovative signal processing algorithms, the more we can help to extend the economic life of mature cables like AJC.”


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About Infinera

Infinera is a global supplier of innovative open optical networking 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 Twitter and LinkedIn, and subscribe for updates.

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This press release contains forward-looking statements, including but not limited to the technical and performance capabilities and related financial benefits of Infinera’s advance coherent algorithms for next-generation optical engines. 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 Annual Report on Form 10-K for the Fiscal Year ended December 31, 2022 as filed with the SEC on February 27, 2023, as well as any subsequent reports filed with or furnished to the SEC. These reports are available on Infinera’s website at and the SEC’s website at 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.