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  • High transmittance from 4 µm up to 18µm
  • High flexibility and no toxicity
  • Suitable for CO2- laser power delivery up to 50W
  • Low attenuation at 10.6µm (0.1-0.5 dB/m)
  • Standard fiber diameters from 0.3 to 1.0mm
  • No aging effect

art photonics’ development of specialty fibers for the Mid-Infrared region has resulted in a unique product – Core / Clad Polycrystalline Infra-Red (PIR-) fibers. The PIR-fibers are non-toxic, very flexible, transparent across a broad spectral range 4 -18 µm and capable for operating over the wide temperature range from 4K to 420K.


  • Spectroscopy Probes for Gases & Liquids
  • Flexible Radiometry
  • Flexible IR-imaging Systems
  • Power delivery for CO & CO2 – Lasers

Fiber Specification:

Standard FibersPIR-240/300PIR-400/500PIR-630/700PIR-900/1000
Core diameter, µ240400630900
Cladding diameter, µ3005007001000
Minimum bend radius5070100130
Transmission Range3 – 18 µm
Core materialAgCl 0.25 Br 0.75
Cladding materialAgCl 0.50 Br 0.50
Protective tubingPEEK
Core Refractive Index2.15
Effective NA0.28±0.03
Operating temperature, °C-270 < T < 140
Maximum transmitted Power, W40 (CW)
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