Passive components are usually manufactured with a passive fiber that matches the gain fiber as it greatly reduces splicing losses and maximizes transfer efficiency. The DCF-UN-20/125-080 is designed to perfectly match Coractive’s DCF-YB-20/128E and is commonly used for manufacturing the output isolators of high peak power pulsed fiber lasers.

Features & Benefits
  • Compatible with industry standards
  • Low background losses
  • Excellent geometrical properties
  • Passive component manufacturing
  • Pulsed fiber laser systems
  • Laser marking & engraving
Core Numerical Aperture
0.080 ± 0.005
Cladding Numerical Aperture
> 0.45
Background Loss @ 1200 nm (dB/km)
< 10.0
Geometrical & Mechanical
Core Diameter (μm) (μm)
20.0 ± 1.0
Cladding Diameter (μm)
125 ± 1
Core/Cladding Concentricity Error (μm)
< 1.5
Coating Diameter (μm)
260 ± 20

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