The First in Russia
“Optic fiber Systems” JSC (www.rusfiber.ru) – 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.
"Optic fiber Systems" JSC produces telecommunication optical fibers of standards G652,G657A1, G657A2, G654 including those with reduced diameter of 200 microns and 2% tension; provides services on optical fiber coloring and the application of ring marks "ringmarking". Optical fibers of new types including 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.
17 000 m2
2 500 m2
compliance with international
1. Optical fiber drawing
The structure of the future fiber lies in the fiber preform. The preform is loaded into the furnace upstairs drawing tower. When preform heats to a temperature of about 2000 ° C, the optical fiber is drawn preserving initial structure. At a speed of 1700 m/s (100 km/h) the fiber is cooled, two-layer acrylate coating is applied using the "wet-on-wet" method, coatings are cured, and fiber is wound on process spool. Spools are changed without drawing process stop. 2000 km of optical fiber is produced from one preform.
2. Fiber rewinding under tension
Rewinding fiber from technological to commercial spools takes place under tension of 0.82 GPa. Thus, the fiber is tested for strength.
3. Quality control
At this stage, all optical characteristics tests are carried out.
To protect against all hydrogen exposure fiber is treated in an atmosphere of deuterium.