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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
Model DHB1500 DHB1500-LA
Cut-Off Wavelength (nm) 860 - 960 860 - 960
Numerical Aperture 0.22 - 0.26 0.22 - 0.24
Mode Field Diameter (μm) 5.1 - 6.7 @1550nm 5.5 - 6.7 @1550nm
Beat-Length (mm) @633 ≤4.0 ≤4.0
Attenuation (dB/km) ≤20 @1200nm ≤15 @1200nm
Proof Test (%) 1 (100 kpsi) 1 (100 kpsi)
Cladding Diameter (μm) 125 + 1 125 + 1
Core Cladding Concentricity (μm) ≤1.0 ≤1.0
Coating Diameter (μm) 245 + 7 245 + 7
Coating Type Dual Layer Acrylate Dual Layer Acrylate
Operating Temperature (°C) -55 to +85 -55 to +85
Absorption (dB/m) 12 - 27 @1531nm 3.0 - 5.5 @1531nm
Product Variants Explained
DHB1500 PM erbium doped fiber for PM EDFAs.
DHB1500-LA PM 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