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Erbium Doped Fiber AstroGain™

Fibercore’s AstroGain™ erbium doped fiber is designed for use in space applications, including amplifiers for inter-satellite communications and light sources for earth monitoring missions. AG980H has a unique trivalent core matrix optimized for high continuous operating time, as might be required in fiber optic gyroscopes (FOGs). This fiber builds on Fibercore’s world class erbium doped fiber (EDF) expertise to deliver new technology to challenging environments.

  • AG980H for high duty cycle space applications
  • Optimized trivalent core matrix for space operation
  • High-efficiency designs for maximum electrical-to-optical power conversion
  • High-reliability mechanical design

Typical Applications:

  • Amplifiers for inter-satellite communications
  • Light sources for earth observation missions
  • Light sources and amplifiers for large scale sensing missions

    Product Variants Explained


    Designed for high (continuous) duty cycle amplifiers in space environments

    Cut-Off Wavelength (nm) 900 - 970
    Numerical Aperture 0.22 - 0.24
    Mode Field Diameter (μm) 5.5 - 6.3 @1550nm
    Attenuation (dB/km) ≤10 @1200nm
    Proof Test (%) 1 (100 kpsi)
    Cladding Diameter (μm) 125 ± 1
    Core Cladding Concentricity (μm) ≤0.3
    Coating Diameter (μm) 245 ± 7
    Coating Type Dual Layer Acrylate
    Operating Temperature (°C) -55 to +85
    Absorption (dB/m) 5.0 - 7.1 @1531nm
    Polarization Mode Dispersion (ps/m) ≤0.005