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Latest News
9 September 2025
Power outage: art photonics Service Delays

Dear Valued Customer, We are writing to inform you that our office in Berlin-Adlershof is currently experiencing a complete power outage. This is part of a large-scale grid disruption in south-eastern Berlin, which, according to reports, is affecting approximately 3,000 businesses and 43,000 households in our district and the surrounding areas. Due to this unforeseen event, our communication […]

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25 August 2025
Introducing FlexiRay® Square-Core Laser Cables

art photonics GmbH is proud to announce a significant addition to our portfolio: the new FlexiRay® Square-Core Silica Laser Cable, engineered to enhance the performance and efficiency of diode laser light transmission. While traditional round-core fibers have long been the industry standard, an increasing number of advanced applications demand a more specialized solution for beam […]

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Latest Events
1 September 2025
APACT 2025 | 23-25 September 2025, Glasgow, UK

art photonics is excited to announce our participation in the APACT 2025 conference, taking place from September 23-25 in Glasgow. We will be showcasing how our advanced fiber optic solutions are making robust Process Analytical Technology (PAT) a reality, even in the most extreme industrial environments. A key highlight of the event will be a […]

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11 August 2025
Join Our Free Webinar: Advanced Fiber Probes for Bioprocessing & PAT

In the fast-evolving field of modern biotechnology, achieving robust, reproducible, and efficient process control is paramount. Real-time, non-invasive monitoring provides the critical data needed to optimize bioreactor performance, but integrating the right analytical tools can be a challenge. To address this, art photonics is pleased to announce a new, free webinar: "Advanced Fiber Probes 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

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 340 μm
  • Double polymer coating for high flexibility

For more information see data and downloads available below.

Description

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 340µm.

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.

Specs

Specification
Core/cladding composition
As2S3
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

Downloads

Graphs

Applications

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

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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