224G SERDES is a high-speed interface technology that underpins next-generation 1.6Tb links. Getting 224G signals from the ASIC to the interconnect and beyond remains a key challenge for the deployment and scaling of 1.6Tb. Each 1.6Tb link uses 8 lanes of 224G signaling. For Ethernet, this actually runs at 212.5 Gb/s, which includes some overhead […]
Since VIAVI announced its ONE LabPro™ ONE-1600, dual OSFP1600 test system at ECOC 2024, we have been very busy supporting the ecosystem by developing and validating 1.6Tb/s modules around the world. Decades of compounding experience – from 10Gb/s to 1.6Tb/s today – has given VIAVI a solid foundation and several unique applications. We always learn […]
“Engineering Marvels” Support AI and High-Performance Computing Workloads Since the early days of optical modules like 300pin MSA and the first 10G XFPs, VIAVI has led innovation and applications to support the transceiver ecosystem. From module developers through validation, and vendor selection to integration – we have had the right applications and accessories to accelerate […]
1.6Tb class modules are now being developed to meet the raw bandwidth and bandwidth density demands of applications including ‘factory scale’ AI and hyperscale computing. Based on emerging standards from IEEE and OIF, they build upon a solid 800Gb ecosystem and include several new features – both evolutionary and revolutionary. 224G Signaling and FECi The […]
VIAVI has spent decades testing Ethernet as a service, fueling its leadership position in testing modules, cables, and Ethernet ICs at the PHY layer. We also have products that cover the full stack to L7, offering breadth and depth of coverage. A few years ago, we determined current products on the market for high-scale Ethernet […]
We at VIAVI have long been aware of the impact of latency on the datacoms and telecoms ecosystem. Specialized applications have been developed which allow customers to develop and evaluate ICs, optical modules, ASICs and systems based on their bandwidth throughput and latency. Historically, people have focused on microseconds, but increasingly – especially driven by […]
Modern high-speed links for the fastest Ethernet rates of 400GbE and above use PAM-4 electrical modulation. This modulation format allows interfaces to run at the speeds required for 400GbE and above, but PAM-4 modulation is more susceptible to the impacts of noise and signal integrity. This is mitigated by the use of forward error correction […]
While evaluating high-speed network test equipment, it may be tempting to forgo deep physical layer testing capabilities to save money and reduce testing complexities. In some cases, these ‘just good enough’ solutions appear to fit the bill, but lack of deep insights can lead to product re-designs, longer development cycles or systemic failures in the […]
Since the emergence of 400 Gigabit Ethernet (GbE) around 5 years ago, we have seen PAM-4 modulation replace NRZ on both optical and electrical interfaces. We now see a broad and healthy ecosystem building for 400 GbE, and even 800 GbE, using PAM-4 signaling. In fact, we are even seeing the first 100 Gb per […]
One of the most significant areas we have seen driving new test and measurement requirements has been data center interconnect – DCI. This rapidly growing area leverages the emergence of pluggable coherent optics (DCO) to allow rapid scaling of data center interconnect bandwidth based on an open, multi-vendor ecosystem. For the DCI market to grow […]
