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Er/Yb Fibers

DCF-EY-10/128H-G2-ASEF

Erbium/Ytterbium co-doped double-clad fiber

DCF-EY-10/128H-G2-ASEF at a glance

Key specifications

  • <= 50

    Background Loss @1200 nm (dB/km)

    Fiber loss outside the absorption bands.

  • 2.4 ± 0.4

    Cladding Absorption @ 915 nm (dB/m)

    High absorption – minimizes fiber length and reduces nonlinearities.

  • 110 ± 15

    Core Absorption @ 1535 nm (dB/m)

    High optical efficiency, minimizing pump power requirements.

  • Min 0.45

    Numerical Aperture - Cladding

    High-NA cladding that captures and guides the pump light.

  • 0.2 ± 0.02

    Numerical Aperture - Core

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

  • 128 ± 3

    Cladding diameter (µm)

    Outer diameter of the glass cladding.

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Erbium/Ytterbium co-doped double-clad fiber

DCF-EY-10/128H-G2-ASEF

Description

The ASE-Free version of our standard double-clad erbium/ytterbium co-doped fiber is specifically engineered to minimize ASE around 1 µm, effectively suppressing parasitic ytterbium emission while enabling higher output power, stable amplification, and excellent optical efficiency. Optimized for high-power optical amplifier designs, this fiber delivers high output power together with excellent gain flatness across the extended C-band, making it an ideal gain medium for single channel and multichannel applications.

Features & Benefits

  • High optical efficiency, minimizing pump power requirements
  • High absorption – minimizes fiber length and reduces nonlinearities
  • Optimized Er/Yb core composition – high OSNR at 1.5 μm and reduced 1 μm parasitic emission

Applications

  • High-power telecom amplifiers
  • LiDAR and sensing
  • 1.5 μm fiber lasers and optical amplifiers

DCF-EY-10/128H-G2-ASEF

Optical fiber specifications

Optical
Background Loss @1200 nm (dB/km)
<= 50
Cladding Absorption @ 915 nm (dB/m)
2.4 ± 0.4
Core Absorption @ 1535 nm (dB/m)
110 ± 15
Numerical Aperture - Cladding
Min 0.45
Numerical Aperture - Core
0.2 ± 0.02
Geometrical & Mechanical
Cladding diameter (µm)
128 ± 3
Cladding geometry
Oct.
Coating Diameter (µm)
260 ± 15
Core Diameter (µm)
10 ± 1
Core/Cladding Concentricity Error (µm)
<= 1
Proof Test (kpsi)
>= 100
Environmenatl
Storage Tamperature (°C)
-40 to +85

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