DTU built a 3MHz stable and portable 1.46µ-10.46µm supercontinuum source for pollution monitoring

July 20, 2020

DTU built long wavelength mid-infrared supercontinuum source that is intended for operation in an airborne gas spectroscopy system for pollution monitoring as a part of the EU project FLying ultrA-broadband single-shot InfraRed Sensor (FLAIR). The 3MHz SC laser emit 86.6 mW output power with a spectrum spanning 1.46 µm-10.46 µm  and packaged in a form factor of  47.4 cm x 30.0 cm x 13.45 cm.  The average power fluctuation of the supercontinuum laser is 0.43% standard deviation with spectral stability of  ±0.16 dB for wavelength < 10 µm and  ± 0.6 dB for wavelength > 10 µm. “As the source does not involve a mid-infrared pump source or thulium-doped fibre amplifiers, it presented high compactness and robustness, which promises table-top and outside the laboratory  mid-infrared spectroscopy and imaging application as well as for characterisation of optical fibres in the long wavelength mid-infrared region.” – says Getinet Woyessa, Scientist from Department of Photonics Engineering, Technical University of Denmark.

 

 

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Radboud University Nijmegen 

 

Comeniuslaan 4, 6525 HP

Nijmegen, Netherlands

 

Dr. Frans J. M. Harren - Email

 +31 24 365 2124

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This project is an initiative of the Photonics Public Private Partnership co-funded by the European Union's Horizon 2020 research and innovation programme under grant agreement No 732968