coherent optics

Anyone remember the jingle for Jolt® Cola? All the sugar and twice the caffeine! Perhaps the phrase dates me, but I still hear it in my head—although I now have new words to set to it: All the distance and twice the capacity! OK, maybe it doesn’t have quite the same ring to it. But […]

This past June, CableLabs publicly released the first issued version of the Coherent Termination Device (CTD) Requirements Specification. The same month, the Institute of Electrical and Electronics Engineers (IEEE) Standards Association (SA) approved amendment 802.3ct-2021, which defines 100G Ethernet using coherent optics. Combined with previous point-to-point (P2P) coherent optics specifications released by CableLabs, these two […]

Over the years, CableLabs Envision Vendor Forum has become a platform for collaboration between our industry’s leaders and innovators. More than just a meeting of the minds, it is an event where cable operators and industry vendors can compare common problems, align strategies and forge a path forward toward a better future—together. Our next Envision […]

In our previous CableLabs 101 post about Distributed Access Architecture (DAA), we discussed the benefits of distributing key network functions throughout the cable access network to optimize its performance. Today, we delve deeper into Remote PHY—one of the earliest DAA solutions that cable operators are deploying to increase their network’s bandwidth and more. What Is […]

Welcome back to the CableLabs 101 series! In our previous post, we discussed the basic components of a typical hybrid fiber-coax (HFC) cable network infrastructure and the role of DOCSIS® technology in data transmission over the coaxial portion of the network. Today, we’ll focus on the fiber portion of the HFC network, as well as […]

The cable industry has been well served by its extensive fiber deployment that took place during the initial hybrid fiber-coax (HFC) buildout. Even though cable operators have answered capacity demand through fiber node-splits in specific high demand scenarios, only recently have operators embarked on deeper-fiber roll-out strategies as part of a comprehensive long-term evolution plan. […]

0.0000026 seconds. For the more technically inclined, that’s 2.6 microseconds. Which is how long it would take light to travel a third of a mile through fiber optic cable. It was also the length of the show floor at OFC: The Optical Networking and Communications Conference and Exhibition, held in March in San Diego, California. […]

Forward error correction (FEC) has been a powerful tool in the cable industry for many years. In fact, perhaps the single biggest performance improvement in the DOCSIS 3.1 specifications was achieved by changing the FEC being used in previous versions – Reed-Soloman (RS) – to a new coding scheme with improved performance: low-density parity check […]

Today, CableLabs is announcing another addition to our family of Point-to-Point Coherent Optics specifications:  The Physical Layer 2.0 (PHYv2.0) specification. This new specification defines interoperable point-to-point (P2P) coherent optics links running at 200 Gbps (200G) on a single wavelength. Just 9 months ago, in July of 2018, CableLabs announced the release of the P2P Coherent […]

No, it wasn’t a wedding—but it was a major gathering of great importance! Nine prominent manufacturers participated in the very first CableLabs Point-to-Point (P2P) Coherent Optics Interoperability Event. The highly successful Interop·Labs event took place at the CableLabs offices in Louisville, Colorado, December 4–6. Participants included nine manufacturers from the coherent optics space, including both […]