Tapered fiber 2.2 dB/m

Our polarization-maintaining Yb-doped tapered fibers are designed for high-power pulsed amplifier applications demanding exceptional beam quality.


Patented, the Yb-MCOF-35/250-56/400-07-2.2-T0.7-PM is a tapered fiber designed for an output M² lower than 1.2, making it the perfect choice for applications requiring superior beam quality. It features a confined core for selective gain amplification of the fundamental mode, and a patented depressed-cladding design for enhanced suppression of higher order modes.

Features :

  • High Peak Power Lasers
  • Ultrafast Amplifiers
  • Frequency Conversion

Main specifications

Optical Properties

Core NA 0.07 ± 0.01
Cladding NA > 0.47
Pump guide absorption @ 915 nm 2.2 ± 0.5 dB/m
Nominal pump guide absorption @ 975 nm 8 dB/m
Birefringence ≥ 1.4 x 10-4
Beam quality factor M2 < 1.2

Physical Properties

Taper length 0.7 ± 0.2 m
Non-tapered sections length > 1.0 m
Small core diameter 35 ± 3 µm
Small cladding diameter 250 ± 10 µm
Small coating diameter 500 ± 30 µm
Large core diameter 56 ± 5 µm
Large cladding diameter 400 ± 20 µm
Large coating diameter 520 ± 30 µm
Confined core Yes
Depressed cladding Yes
*Price may vary depending on quantity ordered.
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