Latency is a critical performance factor in communications networks as it is the time it takes for data to travel from one point to another.  As one might expect, service providers commit a great deal of time and effort attempting to reduce latency across the entire network, to deliver data and content faster to consumers and businesses. While important in general, some applications like financial trading, streaming video, and defense/military communications prioritize latency reduction with the goal of achieving as close to real-time communications as possible.

From the planet's largest machine to the latest quantum encryption, optical fibers play a key role in technology innovation as they enable phenomenally high data rates. Installed at the depths of the oceans, throughout cities, and in the most hostile environments on earth, optical fibers serve as the backbone for connecting global communications systems and delivering massive amounts of data every day.

When rolling out and maintaining a fiber optic communications system, latency is a critical factor that must be addressed. Dealing with latency issues can be very frustrating when they occur.

With the explosive growth of global bandwidth demands, data centers and service providers have been busy adding new fiber infrastructure, interconnects, and upgrading their systems and hardware to newer and faster technology. As part of this, both latency and optical signal synchronization are critical factors that engineering teams must manage in order to maximize performance and support their customers across various industries.  

OFS recently made a splash when they announced a new hollow-core optical fiber optimized for low latency transmission.  While hollow-core fibers have existed for about 20 years, it is exciting to see such an innovative and promising fiber technology being more broadly applied to commercial applications. 

Simulating real-world fiber optic links and time delays in the lab environment is both a frequent and necessary task for engineers performing R&D and equipment certification testing processes.  With the evolution to more advanced network architecture, increasing speeds of 400G and beyond, and latency always being a key element, replicating the field network as closely as possible in the lab is critical to ensure systems will perform as expected post-deployment. 

For banking and financial companies in the digital age, having reliable and predictable connectivity to markets along with minimal latency is critical to their success.  A financial network backbone must ensure a customer’s access to funds, particularly after hours, while delivering an additional layer of security and visibility of the most up to date financial data.  But how can a bank or financial institution have confidence that their network will perform as expected?  The solution is to accurately simulate field links and latency in a lab environment to validate system performance will be at the high level it needs to be.

It is well known that fiber optics are at the heart of data-focused industries such as telecommunications, cable, and enterprise networking.  But fiber optic technology also plays a critical role for utility providers such as electric, gas, and water. Simulating the network and testing for latency are keys to successfully deploying fiber networks in the utilities industry.

The versatile Fiber Lab 750 from M2 Optics offers multiple lengths of optical fiber in just 3RU, saving 50% or more rack space for engineers.

The world’s financial communication networks are a paradigm of the modern world, and they operate at very high speeds through necessity, often using fiber optic technology. So fine are the lines between success and failure in today’s trading environment that just tiny fractions of seconds do matter. When financial institutions trade via these networks, shaving microseconds off network latency can result in a significant competitive advantage and millions of dollars annually. To reduce latency, one must understand the factors that can cause latency.