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PM Erbium Doped Fiber

  • DHB1500 matched to IsoGain™ I-12(980/125)
  • DHB1500-LA designed with lower absorption for higher efficiencies
  • Polarization extinction levels of up to -30dB over typical gain lengths of 8 - 14 meters
  • Designed for 980nm pumping

Typical Applications:

  • EDFAs
  • Coherent communications
  • Amplified Spontaneous Emission (ASE) light source
  • Fiber lasers

    Comparison
    DHB1500DHB1500-LA
    Cut-Off Wavelength (nm)860–960860–960
    Numerical Aperture0.22–0.260.22–0.24
    Mode Field Diameter (μm)5.1–6.7 @1550nm5.5–6.7 @1550nm
    Absorption (dB/m)12–27 @1531nm3.0–5.5 @1531nm
    Beat-Length (mm) @633≤4.0≤4.0
    Proof Test (%)1 (100 kpsi)1 (100 kpsi)
    Attenuation (dB/km)≤20 @1200nm≤15 @1200nm
    Cladding Diameter (μm)125 ± 1125 ± 1
    Core Cladding Concentricity (μm)≤1.0≤1.0
    Coating Diameter (μm) 245 ± 7 245 ± 7
    Coating TypeDual Layer AcrylateDual Layer Acrylate
    Operating Temperature (ºC)-55 to +85-55 to +85
    LA – Low absorption
    Product Variants Explained
    DHB1500PM erbium doped fiber for PM EDFAs.
    DHB1500-LAPM erbium doped fiber for PM EDFAs.
    Cut-Off Wavelength (nm) 860 - 960
    Numerical Aperture 0.22 - 0.26
    Mode Field Diameter (μm) 5.1 - 6.7 @1550nm
    Attenuation (dB/km) ≤20 @1200nm
    Proof Test (%) 1 (100 kpsi)
    Cladding Diameter (μm) 125 + 1
    Core Cladding Concentricity (μm) ≤1.0
    Coating Diameter (μm) 245 + 7
    Coating Type Dual Layer Acrylate
    Operating Temperature (°C) -55 to +85
    Absorption (dB/m) 12 - 27 @1531nm
    Beat-Length (mm) @633 ≤4.0
    Technical Bulletins