Polycrystalline Infra-Red 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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Description

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 – 17 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.

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Specs

Specification
Core/cladding composition	AgCl:AgBr
Spectral Range	3 – 17 μm
Core Refractive Index	2.15
Fresnel Reflection Losses for two surfaces	25%
Attenuation at 10.6 µm	0.2 – 0.4 dB/m
Effective Numerical Aperture NA	0.3 +/- 0.03
Melting Point	410 °C
Operating Temperature	–273 to +140°C
Core/Clad Diameter (standard)	see Parameters of standard Polycrystalline fibers
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]

Parameters of standard Polycrystalline fibers
Code	Type	Core Dia., µm	Cladding Dia., µm	Protective Jacket Dia., µm	NA	Min. bending Radius, mm
PIR240/300	Step Index Multimode	240±15	300+0/-15	no	0.30±0.03	45
PIR400/500	Step Index Multimode	410±15	500+0/-15	no	0.30±0.03	75
PIR600/700	Step Index Multimode	600±20	700+0/-15	no	0.30±0.03	100
PIR900/1000	Step Index Multimode	860±20	1000+0/-25	no	0.30±0.03	150