Polycrystalline IR-Fibers

Main features:

High transmittance in the range 3 – 17 μm
Low optical losses of about 0.2 – 0.3 dB/m in the range 9 – 13 µm
Core/Clad structure with core diameters span from 240 to 860 μm
Minimal aging effect
Non-hydroscopic and non-toxic

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art photonics developed a volume production technology of the unique product – Polycrystalline InfraRed (PIR-) Core/Clad fibers – transparent over a broad spectral range 3 – 18 μm.

The highest performance PIR Core/Clad fibers are extruded with the core diameters span from 240 to 860 µm. Continuously improved extrusion process provides PIR-fibers with a superior optical quality and high mechanical strength.

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

Parameters of standard Polycrystalline fibers
Code	PIR240/300	PIR400/500	PIR600/700	PIR900/1000
Type	Step Index Multimode	Step Index Multimode	Step Index Multimode	Step Index Multimode
Core Dia., µm	240±15	410±15	600±20	860±20
Cladding Dia., µm	300+0/-15	500+0/-15	700+0/-15	1000+0/-25
Protective Jacket Dia., µm	no	no	no	no
NA	30±0.03	30±0.03	30±0.03	30±0.03
Min. bending Radius, mm	45	75	100	150

Specifications
Core/cladding composition	AgCl:AgBr
Spectral Range	3 – 18 μm
Core Refractive Index	2.15
Fresnel Reflection Losses	25%
Attenuation at 10.6 µm	0.2 – 0.4 dB/m
Effective Numerical Aperture NA	30 +/- 0.05
Melting Point	410 °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 Radius	150 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

Polycrystalline IR-Fibers

Main features:

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