Over the past few months, teams have been very busy developing 400G class pluggable optical modules. Both as QSFP-DD, predominantly for -ZR 80km applications, and CFP2 for full multi-service DWDM. These coherent modules are a complex mix of photonics, high speed electronics, DSP and firmware as well as mechanical and thermal engineering and we at […]
Ethernet business services including cell site backhaul, internet access, and all the flavors of virtual private networks are among the most profitable and fastest growing services at many communications service providers. The best operations teams take great care to ensure business services are high quality on delivery to eliminate costly customer disputes. Here’s a list […]
Pluggable coherent optics are now being developed for 400G applications with two distinct streams emerging. One is high performance CFP2 based for 1000+km reach and multi-service applications and the other is QSFP-DD ZR (and perhaps OSFP) for DCI and metro Ethernet applications. Both streams present new challenges for test and measurement, not just to meet […]
At the end of March, Viavi attended the OFC 2017 conference in Los Angeles, California. It was a vibrant, busy show with a great international showing – both in the exhibitors and attendees. There are many new, exciting innovations and collaborations happening in the fiber optics arena and we are proud to be a part […]
The acid test of any emerging communications rate is a live field trial. The whole ecosystem must come together—from chips to systems, from lasers to complete optical links—before a single bit of large traffic can be sent. It’s where the rubber meets the road. Furthermore, large carriers like AT&T need technology to be robust and […]
In this Olympic year, the motto Citius, Altius, Fortius (Latin for Faster, Higher, Stronger) seems very relevant to where we are with Ethernet networking. We need faster bandwidth, higher levels of service and stronger performance to push around all those videos of cats—as well as the more serious (and less cute) business traffic. Approximately every […]
