Yb-Doped Tapered Optical Fiber for Pulsed Fiber Lasers

fiber taper

INO now offers a tapered Yb-doped, LMA optical fiber for pulsed high power fiber lasers and amplifiers: the Yb-MCOF-35/250-56/400-07-2.5-T0.8-PM.

This active tapered fiber is designed for M² lower than 1.2 making it the perfect choice for applications requiring superior beam quality. Our fiber design features a confined core for selective gain amplification and multi-layer cladding for enhanced suppression of higher order modes. 

 

Features:

  • Designed for output M² lower than 1.2
  • Large core diameter
  • Low photodarkening
  • High birefringence
  • Confined core for selective gain  amplification
  • Designed to amplify narrow linewidth seed lasers operated in pulsed mode 

Applications :

  • High Peak Power Lasers
  • Ultrafast Amplifiers
  • Frequency Conversion

SPECIFICATIONS*

Optical properties 
Core NA 0.07 ± 0.01
Cladding NA > 0.47
Pump guide absorption @ 915 nm  2.5 ± 0.5 dB/m
Nominal pump guide absorption @ 975 nm 10 dB/m
Birefringence ≥ 1.4 x 10-4
Beam quality factor M² < 1.2
Physical properties 
Taper length 0.8 ± 0.2 m
Non-tapered sections length > 1.2 m
Small core diameter 35.0 ± 3.0 µm
Small cladding diameter 250.0 ± 10.0 µm
Small coating diameter 500.0 ± 30.0 µm
Large core diameter 56.0 ± 5.0 µm
Large cladding diameter 400.0 ± 20.0 µm
Large coating diameter 520.0 ± 30.0 µm
Depressed cladding Yes
Confined core Yes

*Specifications subject to change.

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