Sumitomo Electric says PureAccess-R5 optical fiber exceeds ITU-T G.657.B3 recommendation

The company says that its PureAccess-R5 bending loss insensitive singlemode optical fiber is fully compliant with the new ITU-T G.657.B3 recommended standard for macrobend at a 5-mm radius, for efficiently routing optical drop cables in applications including FTTH and MDUs.

Feb 22nd, 2010

Sumitomo Electric Industries, Ltd. announced that its PureAccess-R5 bending loss insensitive single mode optical fiber is fully compliant with the new ITU-T G.657.B3 recommended standard for macrobend at a 5-mm radius, for efficiently routing optical drop cables in applications including fiber to the home (FTTH) and Multiple Dwelling Units (MDUs). The fiber is also used for data center applications and central office (CO) routing. Demonstrating lower attenuation and bending loss at the 1550 and 1625 nm wavelengths and a higher proof stress level, the company says its PureAccess-R5 exceeds the requirements of the G.657.B3 standard.

Although a 100 kpsi [kilo-pound/square inch, unit of pressure] proof test is required in the G.657.B3 standard, Sumitomo Electric tested the full fiber length of PureAccess-R5 at an elevated 200 kpsi tensile stress. The company maintains that this proof test level is twice that of other commercially available G.657 fibers, and resulted in a significantly lower probability of a fiber stress fracture when deployed at 5-mm bends under bending strain, as in MDUs and other installations. The design of the PureAccess-R5 product also makes it backward compatible with G.652 single-mode fibers, splicing, and connectorization practices.


FULL PRESS RELEASE:

Sumitomo Electric's PureAccess - R5 Optical Fiber Exceeds the New ITU-T G.657.B3 Recommended 5-mm Fiber Bend Radius Standard

TOKYO--(BUSINESS WIRE)--Sumitomo Electric Industries, Ltd. (TOKYO:5802) (ISIN:JP3407400005), a leading global developer and manufacturer of optical fiber, cable and components as well as modules and subsystems for the information and communications industry, today announced that its PureAccess-R5 bending loss insensitive single mode optical fiber is fully compliant with the new ITU-T G.657.B3 recommended standard for macrobend at a 5-mm radius for efficiently routing optical drop cables and other applications inside the home and Multiple Dwelling Units (MDUs). The fiber is also ideal for data center applications and central office (CO) routing. Demonstrating lower attenuation and bending loss at the 1550 and 1625 nm wavelengths and a higher proof stress level,PureAccess-R5 exceeds the requirements of the G.657.B3 standard.

Although a 100 kpsi* proof test is required in the G.657.B3 standard, Sumitomo Electric tested the full fiber length of PureAccess-R5 at an elevated 200 kpsi tensile stress. This proof test level is twice that of other commercially available G.657 fibers, and resulted in a significantly lower probability of a fiber stress fracture when deployed at 5-mm bends under bending strain, as in MDU and other installations. The design of PureAccess-R5 makes it backward compatible with G.652 single-mode fibers, splicing, and connectorization practices. *kpsi: kilo-pound/square inch, unit of pressure

"Our global leadership in the technology of fiber optics has resulted in a fiber that demonstrates both outstanding strength and bend insensitive capabilities," says Shigeki Endo, general manager for the optical fiber & cable division at Sumitomo Electric. "Having added PureAccess-R5 to Sumitomo Electric's PureAccess bend insensitive product line is essential for the continued advancement of FTTH. Sumitomo Electric is pleased to provide our customers with a highly reliable and flexible bend insensitive fiber that facilitates overall space savings, resolves the most challenging FTTH, data center, CO, and MDU applications, and decreases deployment time and costs."

As an early innovator of bend insensitive fiber, Sumitomo Electric has shipped worldwide over 6 million km of its G.657.A1 category PureAccess fiber.

Worldwide Contact Information:

Japan & Other Regions:
Sumitomo Electric Industries, Ltd., http://global-sei.com/

Tel: +81 3 6722 3245, Fax: +81 3 6722 3256

North America: Sumitomo Electric Lightwave Corp. (SEL), manufacturing headquarters for North America
http://www.sumitomoelectric.com/, info@sumitomoelectric.com, Tel: 800 358 7378


Europe: Sumitomo Electric Europe Ltd. (SEEL), sales representative office located in London, UK
http://www.sumielectric.com/, Tel: +44 (0)20 8953 8118, Fax: +44 (0)20 8207 8228


China: Sumitomo Electric Asia Ltd, sales representative office located in Hong Kong
Hong Kong: Tel: +852 2576 0080, Fax: +852 2576 6412
Shenzhen : Tel: +86 (0)755 8270 6880, Fax: +86 (0)755 8270 6660

India: New Deli Liaison Office, Tel: +91 (0)120 434 7701, Fax: +91 (0)120 434 7704

Middle East: Dubai Liaison Office, Tel: +971 (0)4 701 7340, Fax: +971 (0)4 701 7342

About Sumitomo Electric Industries, Ltd.: Sumitomo Electric Industries, Ltd. designs, manufactures and sells optical fiber, cable and components, advanced electronic devices, and automotive parts. Sumitomo Electric's leadership in the R&D and production of optical fiber has impacted the industry with a wide portfolio of fiber types including PureBand low water peak SMF, Z-fiber; extremely low loss fiber mainly for undersea applications, PureGuide; non zero dispersion shifted fiber (NZDSF) for long-haul applications, PureMetro; NZDSF for Metro Applications; and PureAccess bend-insensitive fibers. Through a successful strategy of research and diversification, Sumitomo Electric has become one of the world's leading companies at the forefront of the revolution in information and communications. The company has operations around the world in more than 35 countries and employs 150,000 people. Sumitomo Electric reported group net sales of $22 billion for the year ended March 2009. Visit http://global-sei.com/.

About Sumitomo Electric Lightwave Corp.: Sumitomo Electric Lightwave Corp. (SEL), located in Research Triangle Park, NC, is dedicated to tailoring the fiber optic networks of major communication companies through the manufacturing of optical fiber cable, ribbon-configured network solutions, field termination products, fusion splicers, FTTH products, and its FutureFlex Air-blown Fiber Cabling System. SEL is a wholly owned subsidiary of Sumitomo Electric and is the manufacturing headquarters for Sumitomo Electric in North America. For more information, please call 800-358-7378, email us at info@sumitomoelectric.com, or visit us at www.sumitomoelectric.com.

About Sumitomo Electric Europe Ltd.: Sumitomo Electric Europe Ltd.(SEEL) is focused on representing Sumitomo Electric in Europe and the promotion and sales of its products, particularly those of the Infocommunications & Systems Business Unit. These include optical fiber, fusion splicing machines (sales and service), passive and active optical components (splitters, couplers, transmitters/receivers) and more sophisticated devices such as GaN HEMTs, GaAs FETs and heatsinks. FTTH Components are increasingly a business priority for SEEL. SEEL is based in Elstree, near to London, UK and also Milan, Italy. For more information, please call +44 (0) 208 953 8118, contact us at seel@sumielectric.com, or go to www.sumielectric.com.

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