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Employee Spotlight: 5 Years of Dedication and Quality with Nicole

By Stanislav Perevoschikov

Behind every specialty optical fiber we manufacture and ship at art photonics, there is a dedicated team committed to getting every detail exactly right. Today, we are delighted to shine a spotlight on one of the essential people behind our production lines: Nicole, a Production Employee at art photonics. Recently marking her 5-year work anniversary […]

25 September 2026

Dual-Channel Process Monitoring: Combining NIR and Raman Spectroscopy in a Single Probe

By Stanislav Perevoschikov

During active pharmaceutical ingredient (API) crystallization and drying, comprehensive process understanding demands simultaneous insight into chemical composition and solid-state structure. Operators routinely track two distinct parameters in real time: residual solvent or moisture content, and crystal polymorphism. Historically, monitoring both attributes in situ presented a practical instrumentation bottleneck. Near-infrared (NIR) spectroscopy excels at quantifying water […]

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9 September 2026

CIOE 2026 | 9-11 September 2026 | Shenzhen World Exhibition & Convention Center, China

By Stanislav Perevoschikov

art photonics GmbH is currently exhibiting at the China International Optoelectronic Exposition (CIOE) 2026 in Shenzhen. From September 9-11, we are represented at this premier industry event by our partner, UniqueRay Technologies Limited. Industry professionals are invited to visit Stand 8B16 to review our advanced portfolio of specialty fiber optic solutions. UniqueRay is showcasing our […]

2 September 2026

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

By Stanislav Perevoschikov

Day 1 Update: Meet Our Technical Representative Day 1 of JASIS 2026 is officially underway. Our technical representative and R&D Manager, Alexander Novikov, is on the ground at Makuhari Messe today and ready to connect with industry professionals. If you are looking to enhance your in-line process control, this is an excellent opportunity to speak […]

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

Fiber Couplers for LN Cooled MCT Detector - Image 2

Fiber Couplers for LN Cooled MCT Detector - Image 3

Fiber Couplers for LN Cooled MCT Detector

Categories: Accessories, Fiber Optic Couplers, FlexiRay®, FlexiSpec®, Spectroscopy accessories Tag: Mid-IR

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	157148101mm, 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

art photonics - MCT-coupler - datasheet

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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