Latest News

art photonics GmbH Welcomes Joachim Gerike as New Product Line Manager

By Stanislav Perevoschikov

We are happy to welcome Joachim Gerike to the art photonics GmbH team as our new Product Line Manager. With a Dipl.-Ing. in Mechanical Engineering from Technische Universität Braunschweig and a career in the optical industry dating back to 1996, Joachim brings decades of highly specialized expertise to our operations. His extensive background covers everything […]

Discover the Ultimate Fiber Connection for High-Vacuum Optical Setups

By Stanislav Perevoschikov

When your research or production takes you into extreme environments, maintaining perfect optical transmission should never be a hurdle. At art photonics GmbH, we invite you to explore our FlexiRay® Vacuum Fiber Optic Feedthroughs - engineered to provide a highly flexible, continuous optical path directly into your vacuum or pressurized chambers. Whether you are conducting […]

Latest Events

SPECTARIS 2026 | 16–22 September 2026 | Berlin, Germany

By Stanislav Perevoschikov

art photonics GmbH is pleased to announce our participation in the upcoming SPECTARIS 2026 event series in Berlin this September. Our CEO, Dr. Stefanie Foerster, and our Product Line Manager, Joachim Gerike, will be representing the company during a dynamic week dedicated to industry collaboration, technological growth, and innovation. The schedule begins on September 16 […]

JASIS 2026 | 2-4 September 2026 | Makuhari Messe, Japan

By Stanislav Perevoschikov

We are pleased to announce that our R&D Manager, Alexander Novikov, will be attending JASIS 2026. If you are planning to attend the event and are looking to optimize your Process Analytical Technology (PAT), this is an excellent opportunity to connect. At art photonics GmbH, we act as the fiber optic bridge between your complex […]

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

Chalcogenide Mid-IR Fibers - Image 2

Chalcogenide Mid-IR Fibers - Image 3

Chalcogenide Mid-IR Fibers - Image 4

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Chalcogenide Mid-IR Fibers

Categories: FlexiRay®, Optical Fibers Tag: Mid-IR

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

art photonics - Manual CIR-Fiber Cable Handling Instruction

art photonics - Optical Fibers for Process Spectroscopy -Technical Note

art photonics - MSDS Chalcogenide Fiber

art photonics - MID-IR Chalcogenide Fiber - Datasheet

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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