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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,
    fluorine-doped silica 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

Circular 

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