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 […]
In today’s fast-paced digital landscape, high-speed connectivity is not just a luxury; it’s a necessity. With the increasing demand for faster and more reliable network services, service providers and fiber infrastructure providers are increasingly turning to remote fiber test systems (RFTS) to guarantee fiber infrastructure availability, reduce fiber network outages, and improve service delivery. These […]
In today’s data-driven world, the transfer and protection of sensitive information is paramount. Companies, financial institutions, governments, and individuals rely heavily on secure data communication to maintain confidentiality, personal information, banking information, and to safeguard intellectual property. Data transits around the world through a very complex network of interconnected infrastructure. Most of the the world’s […]
As we know, fiber optic cables are now the backbone of modern communication networks, offering unmatched bandwidth and reliability. But just like any other technology these cables are susceptible to degradation over time. As cables age, network owners and operators encounter several challenges that can impact the overall health and performance of their networks. One […]
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 […]
Pluggable coherent optics really hit mainstream in 2022 and a big part of that was the multi-vendor ZR interop at the OIF booth at OFC 2022. It was great to be involved in this public event as we have been involved in the background for many years supporting the pluggable coherent ecosystem from the earliest […]
While you are walking the OFC 2023 trade show floor in San Diego, you may notice VIAVI ONT-800 setups in various booths, helping manufacturers demonstrate the performance of their products to their own customers. One manufacturer using VIAVI gear is InnoLight Technology Ltd., a global manufacturer of high-speed optical transceivers in booth #4115. New InnoLight […]
800G is becoming a talking point and it is one topic that can mean different things to different people. The main thrust today is development of 800G class pluggable modules. We are seeing the first 800G modules, both QSFP-DD800 and OSFP-800 appearing in the market. Although they carry an 800G tag they are really focused […]
