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Attenuating Fibers

ATN-FB

Attenuating Optical Fibers

Coractive optical fiber spools – ATN-FB

ATN-FB at a glance

Key specifications

  • 7 ± 1

    Core Diameter (µm)

    Diameter of the light-guiding core.

  • 0.14 ± 0.02

    Core Numerical Aperture (nominal)

    Light-acceptance angle of the core; with the core size, it sets how many modes are guided.

  • 125 ± 0.5

    Cladding Diameter (µm)

    Industry-standard fiber geometry – provides high-precision core alignment for more efficient fiber coupling.

  • 1295 - 1325

    Attenuation Wavelength Range @ 1310 nm (nm)

    Optical loss per unit length at the stated wavelength.

  • 245 ± 10

    Coating Diameter (µm)

    Outer diameter of the protective polymer coating.

  • 1535 - 1565

    Attenuation Wavelength Range @ 1550 nm (nm)

    Optical loss per unit length at the stated wavelength.

Description

Coractive’s attenuation optical fiber (ATN) products have been specifically designed to provide flat attenuation. Wideband uniform attenuation ensures full compatibility with current and future DWDM, CATV and other telecom systems. The ATN-FB has a wide attenuation range (<15 dB/cm) for manufacturing in-line fixed attenuators used in telecommunications.

Features & Benefits

  • Industry-standard fiber geometry – provides high-precision core alignment for more efficient fiber coupling
  • Precise cladding diameter control – perfect ferrule fit reducing manufacturing costs & increasing production yield
  • Tight attenuation tolerance – enables compatibility with DWDM network applications
  • Guaranteed attenuation in 1310 nm and 1550 nm wavelength ranges
  • Exceptional batch-to-batch uniformity – ensures a consistent and high-quality attenuator
  • Wide attenuation range: from 0.4 to 15 dB/cm

Applications

  • In-line fixed attenuators
  • Telecom (DWDM, CATV)

ATN-FB

Specifications

Optical
Core Numerical Aperture (nominal) 0.14 ± 0.02
Attenuation Range (dB/cm) * 0.4 - 15
Attenuation Wavelength Range @ 1310 nm (nm) 1295 - 1325
Attenuation Wavelength Range @ 1550 nm (nm) 1535 - 1565
Attenuation Tolerance (nominal) (%) ± 7.5
Geometrical & Mechanical
Core Diameter (µm) 7 ± 1
Cladding Diameter (µm) 125 ± 0.5
Core/Cladding Concentricity Error (µm) ≤ 0.8
Coating Diameter (µm) 245 ± 10

* Not all attenuations are available within given range. Please contact your sale representative for more information.

ATN-FB

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