Nyfors

Last updated
Nyfors Teknologi AB
Type Private
Industry Fusion splicing
Founded Sweden, Stockholm (1987)
Headquarters Stockholm
Key people
Uwe Böttcher (Founder)
ProductsFusion splicing equipment
Website www.nyfors.com

Nyfors Teknologi AB is a high-end supplier of advanced optical fiber handling equipment, based in Stockholm, Sweden. The company develops and manufactures equipment used in optical fiber fusion splicing, including products for stripping and preparation, testing and analysing and fiber end-face inspection, but is most well known for its automated optical fiber recoating and fiber cleaving systems. Nyfors products are sold internationally to customers within a wide range of industrial sectors and to public and private research institutions.

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The company has its origin in the telecommunications industry and was founded in 1987 by Uwe Böttcher, the former head of Fusion Splicing Development and Production at LM Ericsson Fiber Optics in Stockholm. Nyfors first commercial product was an optical fiber recoater launched in 1988.

Recoating

Optical fiber recoating is the process of restoring the primary coating to stripped optical fiber sections after fusion splicing. The polymer comprising the recoat is usually similar in composition to the original fiber polymer coating. Nyfors optical fiber recoaters are designed to restore the primary coating on spliced optical fibers with acrylate coatings. Due to the mould design, the restored part of the coating has a diameter and other properties, such as eccentricity and roundness, that are almost identical to the original fiber.[ citation needed ]

One of the first major projects in which Nyfors participated was the submarine optical fiber cable between the Swedish mainland and Gotland in the Baltic Sea. The project was carried out in close collaboration between Alcatel and the public telephone company Televerket, with Nyfors providing the on-board optical fiber recoaters. Partly as a result of the technological development carried out during this project, the company was able to launch its first commercial optical fiber recoater in 1988.

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Recoating is the process of restoring the primary coating to stripped optical fiber sections after fusion splicing. In the recoating process, the spliced fiber is restored to its original shape and strength, using a recoater. The stripped fiber section is recoated by filling a recoating resin, usually acrylate into transparent moulds. The resin is then cured with UV light. It is often desirable to perform a proof-test after recoating, to ensure that the splice is strong enough to survive handling, packaging and extended use.

<span class="mw-page-title-main">Stripping (fiber)</span>

Stripping is the act of removing the protective polymer coating around optical fiber in preparation for fusion splicing. The splicing process begins by preparing both fiber ends for fusion, which requires that all protective coating is removed or stripped from the ends of each fiber. Fiber optical stripping can be done using a special stripping and preparation unit that uses hot sulphuric acid or a controlled flow of hot air to remove the coating. There are also mechanical tools used for stripping fiber which are similar to copper wire strippers. Fiber optical stripping and preparation equipment used in fusion splicing is commercially available through a small number of specialized companies, which usually also design machines used for fiber optical recoating.

Cladding is the bonding together of dissimilar metals. It is different from fusion welding or gluing as a method to fasten the metals together. Cladding is often achieved by extruding two metals through a die as well as pressing or rolling sheets together under high pressure.

All-dielectric self-supporting (ADSS) cable is a type of optical fiber cable that is strong enough to support itself between structures without using conductive metal elements. It is used by electrical utility companies as a communications medium, installed along existing overhead transmission lines and often sharing the same support structures as the electrical conductors.

In telecommunications, a line splice is a method of connecting electrical cables or optical fibers.

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See also