Fibre optique spéciale

The Yb-DCOF-35/250-07-0.8 is a 35 µm core fiber offering a beam quality factor M² lower than 1.15, making it the perfect choice for applications requiring superior beam quality. This fiber features a confined core for selective gain amplification with low sensitivity to the coiling diameter and is designed to amplify fast rise time seed lasers with narrow linewidth.



  • Large mode area fiber (35 µm core)
  • Beam quality factor M² < 1.15
  • Low photodarkening core glass host


  • Material processing
  • Biophotonics
  • Range finding


Optical Properties
Core NA 0.07 ± 0.01
Cladding NA > 0.47
Pump guide absorption @ 915 nm  0.8 ± 0.1 dB/m
Nominal pump guide absorption @ 975 nm 3.5 dB/m
Effective mode area 450.0 ± 50.0 µm²
Beam quality factor M² < 1.15
Physical Properties
Optical cladding Double
Core diameter 35.0 ± 3.0 µm
Silica cladding diameter 250.0 ± 10.0 µm
Coating diameter 400.0 ± 10.0 µm
Cladding geometry Octogonal
Screen proof tested  50 kpsi
Recommended coiling diameter ≥ 12 cm
Confined core Yes
Depressed cladding No
Price per meter, 5 to 49 meters (in USD)* $140

*Price may vary depending on quantity ordered. Request a quote now!


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