Polycrystalline IR-Fibers

Main features:

  • High transmittance in 3-18 μm range*
  • Low optical losses 0.2 – 0.3 dB/m in 9-13µm range
  • Core/Clad structure with core diameters span from 240 to 860 μm
  • Minimal aging effect
  • Non-hydroscopic and non-toxic
    * See transmission data
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art photonics developed a volume production technology of a unique product – Core / Clad Polycrystalline Infra-Red (PIR-) fibers transparent over a broad spectral range 3 -18 μm.

Highest performance PIR core/clad fiber  are extruded with core diameters span from 240µm to 860µm. Continuously improved extrusion process provides  a superior optical quality and mechanical strength of PIR- fibers.

Low optical losses without absorption  peaks over the mentioned spectral range  ensure a successful use of PIR- fiber for a broad range of applications.

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

Parameters of standard Polycrystalline fibers

CodePIR240/300PIR400/500PIR600/700PIR900/1000
TypeStep Index MultimodeStep Index MultimodeStep Index MultimodeStep Index Multimode
Core Dia., µm240±15400±15600±20860±20
Cladding Dia., µm300+0/-15500+0/-15700+0/-151000+0/-25
Protective Jacket Dia., µmnononono
NA30±0.0530±0.0530±0.0530±0.05
Min. bending  Radius, mm4575100150

 

Specifications

Core/cladding compositionAgCl:AgBr
Spectral Range3 – 18 μm
Core Refractive Index2.15
Fresnel Reflection Losses25%
Attenuation at 10.6 µm0.2 – 0.4 dB/m
Effective Numerical Aperture NA30 +/- 0.05
Melting Point410 °C
Operating Temperature–273 to +140°C
Core/Clad Diameter (standard)see table above
Laser Damage Threshold for CW CO2laser>12 kW/cm²
Tensile Strength> 70 MPa
Minimum Bending Radius (fixed)5 x [Fiber Diameter]
Minimum Elastic Bending Radius150 x [Fiber Diameter]
  • Mid IR spectroscopy
  • Flexible IR pyrometry
  • Flexible IR-Imaging systems
  • Power delivery for QuantumCascade Lasers
  • Power delivery for CO and CO2 Lasers

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