3 March 2021

The company "Optic Fiber Systems" fulfilled the first shipment of a new optical fiber type G.654 for the TEA NEXT project

In early 2021, "Optic fiber Systems" JSC launched the serial production of a new optical fiber type G.654. E. Optical fiber of this standard will be used for the "Rostelecom" PJSC project to construct a new generation fiber-optic communication line connecting western and eastern Russian borders under a working title TEA NEXT.

Fire-Polished Advanced Pure Silica Core Single Mode Fiber G.654 has low transmission losses over long distances for the construction of high-performance optical telecommunication networks such as terrestrial long-distance communication systems and submarine trunk cables with optical amplifiers.

Among other things, the reduced attenuation coefficient and the increased effective annual area make it possible to design backbone networks with an optimal number of signal amplification and regeneration points, which reduce the cost of equipment for the construction of fiber-optic lines.

"Optic fiber Systems" JSC mastered the production of G.654 optical fiber in less than 6 months together with the Japanese company "Sumitomo Electric" - a strategic partner of the plant.

Before the launch of the serial production, the quality of the G.654 optical fiber produced by OVS was confirmed by joint tests with "Rostelecom" PJSC and the largest Russian cable factories - "Incab" LLC, "Saranskkabel-Optikа" LLC, "OPTEN-KABEL" LLC, "Altai-Kabel" LLC and "Moskabel-Fujikura" JSC.

Rostelecom first announced the launch of the TEA NEXT project in June 2020. TEA NEXT is a large-scale communication project for the construction of a fiber-optic communication line, the route of which will pass through the whole country – from Kaliningrad to Sakhalin. The TEA NEXT project capacity will reach 96 dark fiber lines available to international operators and global companies as a transit communication means connecting Asia and Europe, and to national operators in Russia.

During the construction of the new fiber-optic communication line, ultra-low attenuation optical fibers produced by JSC "Optical Fiber Systems" in Russia will be also used.

The first shipment of the new standard optical fiber has already been fulfilled to one of the leading factories for the fiber-optic cable production "Incab" LLC. There the cable for the first pilot section of the TEA NEXT project will be produced.


“Optic fiber Systems” JSC ( – is the first and the only Russian plant manufacturing optical fiber. The plant is situated in Saransk, Mordovia Republic. It was officially opened on 25 September   2015. The shareholders of the company are RUSNANO, Gazprombank and the Government of Mordovia Republic.

Optical fiber is the main component of optic cables for signal transmission in modern communication networks. Fiber is also used as a sensor for monitoring deformation, temperature, acoustics and other indicators.

"Optic fiber Systems" JSC produces telecommunication optical fibers of standards G652 and G 657 A1 including those with reduced diameter of 200 microns; provides services on optical fiber coloring and the application of ring marks "ringmarking". Optical fibers of new types such as G651 and G655 are being prepared for release. Products are certified in Russia and the quality is confirmed by "Rostelecom" PJSC, Russia's leading cable companies and foreign consumers.

According to the results of certification, optical fiber was approved for use on the networks of the largest Russian Telecom operators Rostelecom, MTS, MegaFon and others.

Manufacturing capacity of the plant is 4 mln kilometers of optical fiber per year.