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PM Fibers

YB-MCOF-35/250-07-0.9-PM

Ytterbium-doped large mode area polarisation-maintaining fiber

Coractive optical fiber spools – YB-MCOF-35/250-07-0.9-PM

YB-MCOF-35/250-07-0.9-PM at a glance

Key specifications

  • 0.9 ± 0.1

    Cladding Absorption @ 915 nm (dB/m)

    Pump light absorbed per metre by the doped core, measured through the cladding.

  • ≥ 1.4 x 10-4

    Birefringence

    High birefringence.

  • 35 ± 3

    Core Diameter (μm)

    Large core diameter of 35 μm.

  • 0.07 ± 0.01

    Core Numerical Aperture

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

  • 250 ± 5

    Silica Cladding Diameter (μm)

    Outer diameter of the glass cladding.

  • > 0.47

    Cladding Numerical Aperture

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

Description

Yb-doped large mode area PM fiber

Developed by our key partner INO, the Yb-MCOF-35-250-07-0.9-PM fiber is designed for M² lower than 1.15 making it the perfect choice for applications requiring superior beam quality. It features a confined core for selective gain amplification and multi-layer cladding for superior suppression of higher order modes.

Features & Benefits

  • Designed for output M² lower than 1.2
  • Large core diameter of 35 μm
  • Low photodarkening
  • High birefringence
  • Confined core for selective gain amplification
  • Increased differential bending losses

Applications

  • Material Processing
  • Frequency Conversion
  • Biophotonics
  • Range finding

YB-MCOF-35/250-07-0.9-PM

Specifications

Optical
Cladding Absorption @ 915 nm (dB/m) 0.9 ± 0.1
Cladding Absorption @ 975 nm (nominal) (dB/m) 4
Core Numerical Aperture 0.07 ± 0.01
Cladding Numerical Aperture > 0.47
Birefringence ≥ 1.4 x 10-4
Beam quality factor Ma2 < 1.15
Geometrical & Mechanical
Optical Cladding Multi
Core Diameter (μm) 35 ± 3
Silica Cladding Diameter (μm) 250 ± 5
Coating Diameter (μm) 390 ± 20
Cladding Geometry Round
Screen Proof Tested (kpsi) ≥ 100
Recommanded Coiling Diameter (cm) ≥ 12
Confined Core Yes
Depressed Cladding Yes

YB-MCOF-35/250-07-0.9-PM

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