FlexiSpec®

Spectroscopy Fiber Probes & Probe Couplers

FlexiRay®

Fibers | Cables | Bundles | Accessories

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Loan & Installation | Measurements Training | Repair | Development
News
Latest News
27 April 2026
Introducing the FlexiSpec Combi Fiber Optic Probes

In the demanding fields of bio-pharma and advanced R&D, real-time data is essential. Traditionally, securing comprehensive analytical data meant physically switching between different spectroscopic setups, such as ATR, NIR, and Raman. This fragmented approach not only slows down critical processes but also introduces a higher risk of sampling errors. Why run three separate analyses when […]

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17 March 2026
Application Note: Identification of Organic and Pharmaceutical Powders

Real-time, in-line powder identification usually means a trade-off between speed and accuracy. We proved it doesn't have to. We recently teamed up with our Nynomic Group partner, m-u-t GmbH, to release a joint Application Note. The goal was simple: build a compact, field-ready NIR setup capable of analyzing complex organics directly in the bulk material, […]

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Latest Events
4 May 2026
EuroPACT 2026 | 4-7 May 2026 | Lyon, France

The 7th European Conference on Process Analytics and Control Technology (EuroPACT 2026) is taking place from May 4th to 7th at the Cité - Centre de Congrès in Lyon, France. art photonics is pleased to announce that our CEO, Dr. Stefanie Foerster, will be attending the event to connect with industry leaders, partners, and innovators […]

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28 April 2026
Day 1 at EPIC AGM 2026 | 28-30 April 2026 | Juan-les-Pins, Nice, France

Bonjour from Juan-les-Pins! Day 1 of the EPIC AGM & Summit 2026 is here, and art photonics GmbH is ready for an incredible event. Our CEO, Dr. Stefanie Foerster, has already engaged in some insightful discussions, kicking things off right alongside Carlos Lee, Director General of EPIC. We extend a warm thank you to the […]

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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.
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Mid-Infrared Spectroscopy for Monitoring of Anaerobic Digestion Processes - Prospects and Challenges

Posted on: 
27 March 2018

To develop an online probe that is not only sufficiently robust, but also able to measure crucial process variables in biogas plants is a tough challenge. Therefore, a mid-infrared (MIR) spectroscopic attenuated total reflection (ATR) probe and robust probe fitting were established. A fully automated probe control, calibration after probe cleaning, and analysis of the absorption spectra using machine learning were implemented in order to reduce maintenance of the probe to a minimum. The relevant wavelengths in the MIR spectrum for organic acids, total alkalinity, and ammonium nitrogen concentration were identified. Finally, intensive lab testing was carried out, followed by operation of the complete online measurement system at an industrial biogas plant. In order to improve signal strength and sensitivity, microelectronic mechanical system (MEMS)-based Fabry-Pérot interferometers were also investigated.

https://onlinelibrary.wiley.com/doi/full/10.1002/ceat.201500334

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