Category Archives Optical Network

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 […]

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  […]

The transport and logistics industry established itself as an indispensable service during the COVID-19 pandemic, when access to products was limited due to movement restrictions. This has resulted in increased consumer expectations of the industry in terms of shorter delivery timeframes, more detailed forecasting, and increased access to information on delivery status.  To succeed in […]

Business owners today are aware of the technological advantages of 5G technology; however, many are unaware of the specific use cases where 5G implementation can really add value to their organization.   CIOs and other business leaders are identifying business opportunities, and companies across industries are increasing their use of private and public 5G networks […]

Viavi Solutions Inc. (VIAVI) will showcase this week a range of products engineered to simplify and accelerate high-speed network test across all phases of the network lifecycle including development and system verification, manufacturing, turn up and installation, and troubleshooting and monitoring. The new products highlight the VIAVI presence at OFC 2021, taking place virtually from June […]

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