Publications by authors named "Helge Fonnum"

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Holmium-doped fiber amplifier for pumping a ZnGeP optical parametric oscillator.
Lars G Holmen, Helge Fonnum

Opt Express· March 2021

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High-pulse-energy mid-infrared fractional-image-rotation-enhancement ZnGeP optical parametric oscillator.
Marc Eichhorn, Martin Schellhorn, Magnus W Haakestad, Helge Fonnum, Espen Lippert

Opt Lett· June 2016

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Mid-infrared source with 0.2 J pulse energy based on nonlinear conversion of Q-switched pulses in ZnGeP2.
Magnus W Haakestad, Helge Fonnum, Espen Lippert

Opt Express· April 2014

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550 mJ Q-switched cryogenic Ho:YLF oscillator pumped with a 100 W Tm:fiber laser.
Helge Fonnum, Espen Lippert, Magnus W Haakestad

Opt Lett· June 2013

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250-MHz synchronously pumped optical parametric oscillator at 2.25-2.6 μm and 4.1-4.9 μm.
Nicola Coluccelli, Helge Fonnum, Magnus Haakestad, Alessio Gambetta, Davide Gatti

Opt Express· September 2012

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A 22-watt mid-infrared optical parametric oscillator with V-shaped 3-mirror ring resonator.
Espen Lippert, Helge Fonnum, Gunnar Arisholm, Knut Stenersen

Opt Express· December 2010

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Mid-infrared optical parametric oscillator synchronously pumped by an erbium-doped fiber laser.
Magnus W Haakestad, Helge Fonnum, Gunnar Arisholm, Espen Lippert, Knut Stenersen

Opt Express· November 2010

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