XXXX XXXX CORNING LONG-HAUL FIBRE
ADVANCED SUBMARINE TECHNOLOGY GOES TERRESTRIAL A REVOLUTIONARY ERA FOR LONG-HAUL FIBRE
The exponential global bandwidth growth is catalysed by many factors, such as proliferation of video streaming from smart devices and an increasing trend to place mission-critical workloads into the cloud. Corning Optical Communications market and technology development managers Dr. Hao Dong and Dr. Sergejs Makovejs look at how long- haul network operators are now facing unprecedented pressure to undertake extensive network capacity expansions to keep pace with the growing bandwidth demand.
THE CHALLENGE FOR LONG- HAUL The capacity of fibre-based long-haul communication networks has become approximately 1000x greater over the last 20 years, with the most gain realised from the adoption of optical coherent technology since 2011. Coherent technology has created a capacity bonanza with data rate evolving from 10G to 100G, which has become the de facto standard globally. However, when the industry follows a capacity expansion trajectory to further evolve beyond 100G, the distances between amplifiers and regenerators become prohibitively short. AN ECO-SYSTEM VIEW 200G technology is expected to ramp up in the near future. For example, according to a recently published Telecom Optics and Components report by IHS Markit, approximately 90% of long-haul networks were based on 100G technology in 2016. By 2018, however, 30% of networks will adopt 200G and beyond technology. The report also
predicts that this trend will continue. By 2022, 200G and beyond technology will account for nearly 54% of all deployed wavelength-division multiplexing (WDM)
bandwidth in long-haul networks, making it very likely to repeat the success story of 100G. However, the use of spectrally-efficient
Fig.1. Technology options available to deliver >100G capability
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| ISSUE 15 | Q4 2018
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