Chalcogenide IR-Fibers

Main features:

  • High transmittance in the range 1.1 – 6.5 μm
  • Low optical losses of about 0.2 – 0.3 dB/m at 2.5 – 4 µm and 4.5 – 5 µm
  • Core/Clad structure with core diameters span from 8 to 500 μm
  • Double polymer coating for high flexibility

For more information see data and downloads available below.

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Chalcogenide As-S glass fiber transmits IR-radiation in the spectral range of 1.1 – 6.5μm. High performance CIR core/clad fiber are drawn with core diameters span from 8µm to 500µm.

Advanced drawing process with double polymer jacket provides a superior mechanical strength and high flexibility of CIR- fibers.

Low optical losses and small absorption peaks over the mentioned spectral range ensure a successful use of CIR-fiber for a wide range of applications.

For more information please visit our “Downloads” section and find relative articles at our “Publications” page.

 

Parameters of standard Chalcogenide fibers
Code CIR8/300 CIR 50/250 CIR 250/300 CIR 340/400 CIR 500/550
Type Step Index Single-mode Step Index  Few-mode Step Index Multimode Step Index Multimode Step Index Multimode
Core Dia., µm 8±1 50±3 250±10 340±10 500±10
Cladding Dia., µm 300±15 250±10 300±15 400±15 550±15
Protective Jacket Dia., µm 400±20 410 ± 20 400 ±30 510 ± 30 700 ± 30
NA 0.25 ± 0.02 0.13 ± 0.02 0.30 ± 0.03 0.30 ± 0.03 0.30 ± 0.03
Min. bending  Radius,mm 60 50 60 80 100

 

Specifications
Core/cladding composition As2S3
Spectral Range 1.1 – 6.5 μm
Core Refractive Index 2.42
Fresnel Reflection Losses 31%
Attenuation at 3 – 4 μm & 4.5 µm – 5 µm 0.2 – 0.4 dB/m
Effective Numerical Aperture NA see Parameters of standard Chalcogenide fibers
Glass Transition Temperature, Tg 185 °C
Operating Temperature –273°C to +90°C
Core/Clad Diameter (standard) see Parameters of standard Chalcogenide fibers
Protective Jacket Fluoro polymer + PVC
Tensile Strength > 70 MPa
Minimum Bending Radius (fixed) 100x [Fiber Diameter]
Minimum Elastic Bending Radius 200x [Fiber Diameter]

 

 

 

  • Mid IR spectroscopy
  • Flexible IR pyrometry
  • Flexible IR-imaging Systems
  • Power delivery for Quantum Cascade Lasers

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