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Latest News
5 February 2026
Application Note: Measuring Ethanol and Methanol Mixtures with ATR Fiber Probes

In the high-stakes environment of complex chemical processing, the ability to distinguish and quantify components like ethanol and methanol in real-time is often the deciding factor between a strictly controlled reaction and an off-spec batch. Traditionally, operators have relied on manual extraction for laboratory analysis. However, this method introduces significant delays and safety risks that […]

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30 January 2026
How to Measure ATR Spectra Directly in Solution with Fiber Optic Probes

Moving Beyond the Bench: In-Line FTIR Monitoring with ATR Probes For decades, Attenuated Total Reflection (ATR) has been a standard technique for FTIR spectroscopy. However, most users are restricted to standard ATR inserts or benchtop accessories. While effective for static lab samples, these setups introduce a critical bottleneck: the sample must be extracted from the […]

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Latest Events
18 February 2026
PAT Connect 2026 | 10-11 March 2026 | Badenweiler, Germany

art photonics GmbH is pleased to announce our participation as an exhibitor at PAT Connect 2026, taking place this March at the TTC Technology Training Center. As industries increasingly shift toward real-time monitoring and automation, Process Analytical Technology (PAT) is more critical than ever. Taking the Spectrometer to the Sample Whether you are scaling up […]

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19 January 2026
Team art photonics Arrives in San Francisco for SPIE Photonics West 2026

The art photonics GmbH team has arrived in California and is pleased to be back at the Moscone Center for the start of SPIE Photonics West 2026. Our delegation - led by CEO Dr. Stefanie Foerster, alongside Sales Manager Marco Antonio Ferreira Cipriano and Product Line Manager Joachim Gerike - is on-site and prepared for […]

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About Our Company
art photonics GmbH, founded in Berlin in September 1998, is one of the worldwide leaders in development and production of specialty fiber products for a broad spectrum from 300 nm to 16 µm. Unique technologies of Polycrystalline Mid InfraRed (PIR-) fibers and Metal coated Silica fibers are used for assembly of various spectroscopy probes for medical diagnostics and industrial process control, in volume production of fiber for medical and industrial lasers, for different fiber bundles, etc. Since January 2024 art photonics GmbH is a member of NYNOMIC GROUP.
Member Of:
UV 200-400 nm
Visible
Near IR 750-2500 nm
Mid IR 2.5 - 18 µm

Polycrystalline Infra-Red Fibers

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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

For more information see data and downloads available below.

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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More Information

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

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

Downloads

Graphs

Applications

  • Mid IR spectroscopy
  • Flexible IR pyrometry
  • Flexible IR-Imaging systems
  • Power delivery for QuantumCascade Lasers
  • Power delivery for CO and CO2 Lasers

Inquiry

Do you have any questions about this or any other product? Send us an inquiry, and our personnel will answer your question as soon as possible.

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