Stellar™ – The World’s First Installer’s Fibre

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Exponential growth in internet data is inevitable due to the continuous advent of new use cases. Every year, millions of kilometres of optical fibre get added to the network to keep up with the pace of growing demand. Still, during the outbreak of Covid-19, internet users in many countries experienced as much as a 30% drop in 4G LTE experience. Various OTT platforms had to downgrade the streaming quality to handle the surge in demand. This highlights the fact that the networks of today still have a long way to go, so as to make them future-ready.

Increase in network traffic in some countries during the Covid-19 outbreak, Source:

Future of Digital Networks – Faster Rollouts with Bend Insensitive Fibre

The latest trends of data traffic growth and introduction of various use cases point towards a new converged network. These networks would be denser because of the multiplication of access layer endpoints. Also, they would require deep fiberization to provide better performance at a faster pace and optimum cost.

Better Network Performance:With the increasing geographical spread of optical fibre networks, fibre is going to connect a greater number of buildings and households. Various factors like macro and micro bends, splice loss and fibre attenuation lead to optical losses across the network. Legacy networks, which are mainly built using G.652.D fibres will have higher losses as the operating wavelength increases and fibre gets routed through tighter bends and smaller ducts. With the deployment of bend-insensitive fibres, bend losses of the network can be reduced drastically.

Improved TCO: Superior bend-insensitive performance results in an improved power budget, making the network resilient to accidental bends and cuts hence increasing the network’s life by many years. Increased power budget can also help an operator increase its geographical reach. Thus, bend-insensitive fibre reduces network capital and operational expenses.

MFD Mismatch – A Challenge for Installers

Deploying bend-insensitive fibre which adhere to G.657.A1 or A2 standards does not guarantee the best performance. When splicing the bend-insensitive fibre and fibre present in legacy networks (primarily G.652.D), Installer’s face another serious issue because of mode field diameter (MFD) mismatch.

MFD mismatch results in increased splice loss, splicing G.652.D and G.657.A2 fibre. Here optical power loss management also requires specialized tools such as calibrated laser source and power meter and a highly skilled technician at each end of the network.

Low fusion splice between G.652.D and G.657.A2 can be easily achieved, but in this case, the correct measurement and interpretation of the OTDR reading is a difficult task and can also create confusion while qualifying a link as ready to use. The issue arises because the OTDR results vary depending on the direction you measure it, resulting in an OTDR gain or loss error.  Overall, this results in time being wasted to rectify the apparent bad splice. This reduced the first-time right rate and increases the time to deploy the network.

While ITU standards focus mainly on the bend insensitivity but maintaining backward compatibility is an industry imperative. Today, the Operators need legacy network compatible ITU G.657.A2 optical fibre.

Stellar™ Fibre – The world’s first legacy network compatible G.657.A2 Fibre

Leveraging our experience of working closely with leading Telcos across the industry and our expertise in network deployment, we created Stellar™, the world’s 1st G.657.A2 macro bend-insensitive optical fibre which is compatible with legacy networks comprising of G.657.A1 and G.652. D fibre.

Future-ready Stellar™ helps build the network faster and efficient, saving both time and money. It is the ideal choice for next-gen PON technologies, delivering 40 Gigabits per wavelength up to 1625 nm on a single fibre.

Stellar™ – Bends like Magic

Better Network Performance: The macro bend losses of Stellar™ adhere to the ITU-T G.657.A2 standards, even at higher wavelengths and 7.5mm bend radius. Superior macro bend performance results in compact splice box and smaller manholes.

Improved TCO:Stellar™ increases the network’s life by as much as 10 years. Lower macro bend losses and best in class attenuation results in a more resilient network, that can accommodate a greater number of repairs arising out of accidental cuts and bends.

Stellar™ – Blends like Magic

Faster Rollouts: Stellar’s innovative design with MFD of 9.1 µm ensures seamless splicing with legacy networks resulting in faster network roll-out and minimal splice loss, even with semi-skilled installers.

Interested in building the future of digital networks with Stellar™ fibre to ensure future readiness, better network performance at a faster pace and optimum cost, contact your STL sales representative or visit

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