Category: FOTC

Mixing it up with hybrid cables

It’s challenging to make the right decision on passive infrastructure deployment in the presence of incomplete information on future transmission technologies and future network architectures. One tactic to deploy hybrid cables to account for potential disruptions that next-generation transmission technologies may bring. A hybrid optical fiber cable is one that features two or more different fiber types within the same physical construction to provide greater flexibility for the network operator.

A la mode: Do multimode fibers still have a place in data centers?

On-premises data centers, hybrid cloud implementations, multi-tenant data centers, and some of the largest hyperscale cloud companies are still using multimode. Even as data rates keep going up, there is still relevance to multimode for low power, short reach applications. People have a misconception that everything service provider- or cloud-based is going to be single-mode only.

Overcoming the challenges of cleaning high-density fiber connections in giant data centers

The higher the fiber count of the cable, the more vulnerable the connectors and end faces are to contamination. All connectors are inherently dirty because of the moving parts like springs, connectors, and latches, all of which generate wear debris. Therefore, to get absolute reliability and uninterrupted service from any UHCF network it is important that all connectors are cleaned and inspected to meet IEC 61300-3-35 standards prior to installation. This helps avoid potential fiber network problems such as insertion loss (weakened signal), back-reflection (signal is diverted back to its source) or a complete system shut down.

Cable management is key to data center cross connect strategy

In order to manage their fiber, most data centers typically use a mixture of direct connect and interconnect cabling. As the name implies, a direct connection runs point-to-point between racks. A data center interconnect—not to be confused with the network interconnects mentioned previously—routes patch cords to a presentation panel. For large projects, this strategy can become difficult to manage as patch cords tend to become longer and cable pathways grow more congested. Once the number of fiber strands starts to exceed two or three thousand, the scales begin tipping in favor of a cross connect patching strategy.

400G to claim big optical port shipments through 2024: Dell’Oro

The growing popularity of 400-Gbps transmission rates will lead DWDM coherent port shipments to reach 1.3 million by 2024, according to Dell’Oro Group. The market research firm states in its latest report that the total optical transport market, which Dell’Oro defines as including multiservice multiplexers and WDM systems, will be worth nearly $18 billion by that year.