250-MHz synchronously pumped optical parametric oscillator at 2.25-2.6 {\mu}m and 4.1-4.9 {\mu}m

Autor: Coluccelli, Nicola, Fonnum, Helge, Haakestad, Magnus, Gambetta, Alessio, Gatti, Davide, Marangoni, Marco, Laporta, Paolo, Galzerano, Gianluca

A compact and versatile femtosecond mid-IR source is presented, based on an optical parametric oscillator (OPO) synchronously pumped by a commercial 250-MHz Er:fiber laser. The mid-IR spectrum can be tuned in the range 2.25-2.6 \mu m (signal) and 4.1

Externí odkaz: http://arxiv.org/abs/1207.0995

Holmium-doped fiber amplifier for pumping a ZnGeP2optical parametric oscillator

Autor: Holmen, Lars Grønmark, Fonnum, Helge

Publikováno v: Holmen, Lars Grønmark Fonnum, Helge . Holmium-doped fiber amplifier for pumping a ZnGeP2optical parametric oscillator. Optics Express. 2021, 29(6), 8477-8489
Optics Express

Externí odkaz: http://hdl.handle.net/10852/92023
https://www.duo.uio.no/bitstream/handle/10852/92023/1/1923949.pdf

Optical turbulence on 1-km horizontal path with short and medium IR Gaussian laser beams.

Autor: Schiller, Andreas, Fonnum, Helge, Lippert, Espen

Publikováno v: Proceedings of SPIE; 11/30/2023, Vol. 12731, p127310A-127310A-16, 1p

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Measuring and modeling the influence of atmospheric turbulence on a 2-µm laser beam

Autor: Stein, Karin, Gladysz, Szymon, Yasa, Utku Görkem, Keskin, Mehmet Z., Figen, Ziya Gürkan, Lippert, Espen, Fonnum, Helge

Publikováno v: Proceedings of SPIE; October 2023, Vol. 12731 Issue: 1 p1273109-1273109-16