Interconnect innovation key to satiating soaring demand for fiber capacity
Every year the bandwidth that telecom networks carry increases by roughly 30 percent. To keep up, the interconnects on which these networks are built are going to need to get a whole lot smarter and more capable before long, BT's Andrew Lord said during his Hot Interconnects keynote early this week.
This hasn't been all that big of a problem, at least for the past two decades, thanks to technologies like wave-division multiplexing, which have enabled optical engineers to cram more wavelengths – colors of light – into a single fiber pair. The problem is we're approaching the limits of that technology as it's deployed today, Lord explained.
The same sort of logic is applied to how data is transmitted over optical fiber. Service providers make an educated guess as to how environmental factors and equipment age will impact the reliability of the connection over time and build in a generous safety margin. For example, a brand-new network could be run with a thin margin to achieve the highest capacity, but as the equipment ages, or as environmental factors change, the margin can be increased to accommodate for additional variance and loss.
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