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Yb-doped Tapered Fiber for Pulsed Lasers

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

INO Tapered Fiber

Description

The Yb-MCOF-35/250-56/400-07-2.5-T0.8-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:

  • Designed for output M² lower than 1.2
  • Effective mode area: 1000 µm2
  • Low photodarkening
  • Polarization-maintaining fiber
  • Depressed cladding for enhanced higher-order mode filtering
  • Confined core for selective amplification of the fundamental mode

Applications

  • High peak/high average peak power pulsed lasers
  • Ultrafast amplifiers
  • Frequency conversion

Main specifications

Optical properties

Core NA 0.07 ± 0.01
Cladding NA > 0.47
Pump guide absorption @ 915 nm 2.5 ± 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 Oui
Confined core Oui

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