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Specialty Fiber

  • Ytterbium Doped Dual-Clad Fiber

    TFO's Large Mode Area(LMA) Ytterbium doped dual clad
    fiber is designed for high power fiber lasers and amplifiers.
    This fiber has octagonal shape of pumping cladding,
    fluorinated acrylate outer cladding and low photo-
    darkening performance. TFO's LMA-YDF finds
    applications in medical, industrial and military with
    operating at ~kw of CW output power.

  • Domestic :+82-31-489-5151jyyouk@tfo.co.kr
  • Overseas :+82-31-489-5151jyyouk@tfo.co.kr
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Features

   - Excellent beam quality

   - Large Mode Area

   - Optimization for low photo-darkening

   - Core and Cladding pumped designs for ~kW output power

 

Application

   - Industrial / Military / Medical

   - Metal processing

   - Laser LIDAR

   - High power communications amplifiers

   - High average power pulsed amplifiers 

 

Specification

      Classification

TFO-YDF-DC-20/400

TFO-YDF-DC-25/400 

Core

Core Diameter 

20 ± 1.5µm

                            25 ± 1.5µm 

Core NA

0.055 ± 0.08

Rare-earth Material

Ytterbium 

 

Cladding

Cladding Geometry

Octagonal

Cladding Diameter

400 ± 10µm(nominal)

Cladding NA

≥ 0.46 

Material

Pure Silica 

Cladding Absorption

0.4 ± 0.08dB/m(@915nm)

Outer Cladding(Option-Material)

F-doped Silica 

Coating

Coating Diameter 

550 ± 15µm

Material

UV Cured, Low Index Polymer 

Typical Performance

(Efficiency)

Slope(single power/absorbed pump power) and be optimized to the pumping

configuration of customers.

※ Custom designs are available upon requests