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Latest News
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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4 August 2025
Dr. Eng. Krzysztof Inglot Joins art photonics GmbH as New Sales Lead

We’re happy to introduce the newest member of the art photonics family: Dr. Eng. Krzysztof Inglot, who joins us as our new Sales Lead! When we bring a new leader onto our team, we look for a special kind of drive. As an Ironman triathlete, Krzysztof knows all about endurance, strategy, and pushing past limits […]

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Latest Events
17 September 2025
Free Webinar: A Practical Guide to Selecting the Right Fiber Optic Probe

In the world of spectroscopy, the fiber optic probe is the critical link between the analyzer and the sample. The success of an entire analysis—impacting data quality, accuracy, and reproducibility—often hinges on selecting the appropriate probe for the specific application. With a vast array of sample types, environments, and analytical goals, making the right choice […]

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12 September 2025
ILMAC 2025 | 16-18 September 2025 | Basel, Switzerland

The art photonics team is happy to announce that we will be attending ILMAC 2025, the leading Swiss trade fair for process and laboratory technology. We invite you to join us in Basel, Switzerland, from September 16-18, 2025, for what promises to be an exciting event for the future of industrial manufacturing. Meet Our CEO, […]

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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

Fiber Couplers for LN Cooled MCT Detector

Main features:

  • Efficient coupling of fiber cable to MCT/ InSb detector  in side window Dewar  
  • Wide-range operation thanks to Mirror optics
  • Price effective Lens optic version 
  • Pre-aligned and adjustable  for maximum coupling efficiency
  • SMA or FC/PC  adaptor for fiber (Chalcogenide and Polycrystalline)  optical cable

Description

Refocusing couplers are designed  for  easy coupling of  mid-IR fiber optical cables to MCT/ InSb detector  in LN-cooled side window Dewar.   Art photonics  presents two versions:  Lens Refocusing- and Mirror Refocusing coupler.

The simplest Lens  version coupler can be  standard or customized. Adjustable in 3 dimensions - X-Y for the lens and Z - for the connector position.

Advanced version of the coupler is based on pre-aligned parabolic mirrors. This version serves to eliminate chromatic aberrations and has purging option to avoid atmospheric disturbance in spectral details of the object.  Adjustable in 3 dimensions - X-Y for the mirror and Z - translation of the Dewar.

Both couplers have SMA or FC/PC (on request) adaptor for  fiber optical cable.

See product pages of  our Chalcogenide and Polycrystalline Fiber cables for different spectral range detectors and radiation sources.

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

Specs

Specification of Dewar Couplers
Coupler Type Lens coupler Mirror coupler
Optic elements ZnSe lens with 3-5 or 8-12μm AR-coating Two parabolic mirrors
Dimensions Diameter 70 mm Length 61 mm 157*148*101mm, space for Dewar and pre-amplifier included
Alignment options Angular translation stage ±2.5° in both orthogonal axes; Z-alignment ± 5mm X-Y alignment of the mirror inside the coupler, Z-alignment - translation of the Dewar.
Other options Purging is possible

Downloads

Graphs

Applications

  • Mid IR spectroscopy
  • Flexible IR pyrometry
  • Flexible IR-Imaging systems

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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