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Spectroscopy Fiber Probes & Probe Couplers

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News
Latest News
24 July 2026
Discover the Ultimate Fiber Connection for High-Vacuum Optical Setups

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 […]

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17 July 2026
Eliminating Offline Sampling Delays with FlexiSpec® ATR Probes

Are you still waiting on offline lab samples when an in-line ATR probe could give you real-time process control? Transitioning from offline sampling to real-time monitoring remains one of the most significant bottlenecks in Process Analytical Technology (PAT) today. At art photonics GmbH, our FlexiSpec® ATR Probes are engineered to eliminate that delay entirely, bringing […]

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Latest Events
6 August 2026
JASIS 2026 | 2-4 September 2026 | Makuhari Messe, Japan

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 […]

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10 June 2026
EPIC Technology Meeting on Photonics for Quantum Technologies | 15 June 2026 | Berlin, Germany

We are happy to welcome attendees of the EPIC Technology Meeting on Photonics for Quantum Technologies to our Berlin headquarters. On Monday, 15 June 2026, as part of the Program A company visits, we open our doors to give you a firsthand look at our production environment. We engineer and manufacture our mid-IR fiber solutions […]

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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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