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DataRay Inc. - ISO 11146-Compliant Laser Beam Profilers

Fiber Increases Bandwidth in WDM Amplifiers

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There has been one major problem with conventional erbium-doped fiber optic amplifiers. Because of certain characteristics of erbium-doped fiber, dense wavelength division multiplexing (WDM) systems use only 32 nm of usable bandwidth. In the 1550-nm window, 100 nm are available. With this problem in mind, of Corning, N.Y., developed an experimental silicate-based gain fiber that can increase the usable bandwidth in WDM amplifiers by 50 percent, according to the company. Silicate-based fiber is intrinsically flatter than silica-based fiber, thereby extending the capabilities of conventional...Read full article

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    Published: October 1998
    Communicationsfiber opticsResearch & TechnologyTech Pulse

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