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News & EventsNews
Latest News
17 May 2022
The Present and Future of Process Spectroscopy –

making sure your techniques are fit for purpose Dear Friends, Dr. Slava Artyushenko - the President & CEO of art photonics GmbH will provide a presentation on "Advances in spectral analyser technology: Fibre spectroscopy tools for process Analysis" atthe first in a series of awareness sessions that will focus on different aspects of the use of process spectroscopy techniques, on Tuesday 31st, May […]

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6 April 2022

25th World's Leading Trade Fair for Components, Systems & Applications of photonics | April 26-29, 2022 | Messe München In the spring of 2022, Munich will once again be the hub of the international photonics industry for a few days. From April 26 to 29, the World’s leading trade fair LASER World of PHOTONICS 2022 will be […]

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Latest Events
28 February 2022
EPIC Online Technology Meeting on Mid-Infrared Alliance Present and Future

DON’T MISS THIS IMPORTANT EVENT! EPIC Online Technology Meeting on Mid-Infrared Alliance Present and Future Photonic developments on the Mid-IR region (2.5um-15um) have demonstrated amazing high potential for utilization in different markets such as healthcare, communications, environmental, security and industry while, every day, new exciting applications.In this meeting, the entire MidIR community will discuss how answer […]

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28 February 2022
Photonics Days Berlin Brandenburg 2021

Welcome to visit us at: Photonics Days Berlin Brandenburg 2021 Visit our booth B05. Our Team will provide you with all the information you need about our fiber products and Services. 5th Photonics Days Berlin Brandenburg – International Innovation Conference will bring the regional and International Photonics community together again – this year half online […]

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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.
UV 200-400 nm
Near IR 750-2500 nm
Mid IR 2.5 - 18 µm

Chalcogenide Mid-IR Fibers

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Main features:

  • High transmittance in the range 1.1 – 6.5 μm
  • Low optical losses of about 0.2 – 0.3 dB/m at 2.5 – 4 µm and 4.5 – 5 µm
  • Core/Clad structure with core diameters span from 8 to 500 μm
  • Double polymer coating for high flexibility

For more information see data and downloads available below.


Chalcogenide As-S glass fiber transmits IR-radiation in the spectral range of 1.1 – 6.5μm. High performance CIR core/clad fiber are drawn with core diameters span from 8µm to 500µm.

Advanced drawing process with double polymer jacket provides a superior mechanical strength and high flexibility of CIR- fibers.

Low optical losses and small absorption peaks over the mentioned spectral range ensure a successful use of CIR-fiber for a wide range of applications.

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


Core/cladding composition
Spectral Range 1.1 – 6.5 μm
Core Refractive Index 2.42
Fresnel Reflection Losses 31%
Attenuation at 3 – 4 μm & 4.5 µm – 5 µm 0.2 – 0.4 dB/m
Effective Numerical Aperture NA see Parameters of standard Chalcogenide fibers
Glass Transition Temperature, Tg 185 °C
Operating Temperature –273°C to +90°C
Core/Clad Diameter (standard) see Parameters of standard Chalcogenide fibers
Protective Jacket Fluoro polymer + PVC
Tensile Strength > 70 MPa
Minimum Bending Radius (fixed) 100x [Fiber Diameter]
Minimum Elastic Bending Radius 200x [Fiber Diameter]
Parameters of standard Chalcogenide fibers
Code Type Core, µm Cladding, µm Protective Jacket, µm NA Min. bending Radius, mm
CIR8/300 Step Index Singlemode 8 ± 1 300 ± 15 400 ± 20 0.25 ± 0.02 60
CIR50/250 Step Index Few-mode 50 ± 3 250 ± 10  410 ± 20 0.13 ± 0.02 50
CIR250/300 Step Index Multimode 250 ± 10 300 ± 15  400 ± 30  0.30 ± 0.03 60
CIR340/400  Step Index Multimode 340 ± 10 400 ± 15 510 ± 30 0.30 ± 0.03 80
CIR500/550 Step Index Multimode 500 ± 10 550 ± 15 700 ± 30 0.30 ± 0.03 100




  • Mid IR spectroscopy
  • Flexible IR pyrometry
  • Flexible IR-imaging Systems
  • Power delivery for Quantum Cascade Laser


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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