BendBright and Cyber Security

BendBright TM XS: The world- leading G.657.A2 for securing networks Initially developed for access networks, the later revision of the ITU-T G.657 standard extended the application of G.657.A fibres to all parts of the network, frommetropolitan and regional distances to long hauls. The use for ultra-long distance and high bitrate has been demonstrated notably in the referenced study 6 , performed with the Prysmian BendBright TM XS reference G.657.A2 fibre, which is the most deployed in networks around the world: over 2,000 kmwith 60 DWDM channels at 100 Gbit/s each (totalling 6 Tb/s aggregated capacity). The conclusion in terms of transmission performance was exactly the same as a regular G.652.D telecoms standard single-mode fibre, but with added bend-immunity and intrinsic traffic safety. How does BendBright TM XS fibre protect optical signals from leaking under bend? Prysmian’s latest generation of bend- immune G.652.D fibres – which ITU-T classifies in the G.657.A2 category – leverages an optimised optical core profile technology with a solid single trench concept that preserves all key characteristics of G.652.D and offers a level of bend resistance up to 100 times higher than the standard fibre. This means a signal leak attenuated by up to 20 dB, hence dramatically improving the intrinsic security of the links. BendBright TM XS is up to 100 times more bend resistant than standard G.652.D across the whole spectrumwhen bent in a hacker’s tapping tool. Prysmian’s BendBright TM XS G.657.A2 fibre was a pioneer; the first of its kind to be introduced, and the most deployed in the world, remaining the absolute reference in its space. Its glass composition prevents optical power leakage (resulting in loss) to the outside of the fibre – hence reducing the risk of exposure to tapping, and thus, to hacking. 6. E. Pincemin et al., Low-Cost 100 Gbps Transport Solution Based on DCO-CFP and G.657.A2 Fibre for Long-Haul WDM Transmission, paper Th.B1.5, ICTON 2016 BendBright TM XS is up to 100 times more bend resistant than standard G.652.D across the whole spectrum when bent in a hacker’s tapping tool. Figure 4 BendBright TM XS G.657.A2 Standard G.652.D 0 0 1 0 1 0 1 0 0 1 0 1 0 0 1 1 0 1 – – 1 – – 0 – – – – 0 – – – 1 – – – 0 –