Diffraction limited 195-W continuous wave laser emission at 2.09 µm from a Tm3+, Ho3+-codoped single-oscillator monolithic fiber laser

Arnaud Motard (1) , Christophe Louot (2) , Thierry Robin (3) , Benoit Cadier (3) , Inka Manek-Hönninger (4) , Nicolas Dalloz (1) , Anne Hildenbrand-Dhollande (1)

1 ISL - Institut Franco-Allemand de Recherches de Saint-Louis
2 ISL - Institut Franco-Allemand de Recherches de Saint Louis
3 iXBlue Photonics
4 CELIA - Centre d'Etudes Lasers Intenses et Applications

We present a bi-directionally 793-nm diode-pumped Tm 3+ , Ho 3+-codoped silica polarization maintaining double-clad all-fiber laser based on a single-oscillator architecture emitting 195 W at 2.09 µm in continuous wave mode of operation, with a beam quality near the diffraction limit (M 2 = 1.08). The power scaling of the laser is only pump-power-limited in the range of the total available pump power (540 W).

Domaines: Optique [physics.optics]

Arnaud Motard, Christophe Louot, Thierry Robin, Benoit Cadier, Inka Manek-Hönninger, et al.. Diffraction limited 195-W continuous wave laser emission at 2.09 µm from a Tm3+, Ho3+-codoped single-oscillator monolithic fiber laser. Optics Express, 2021, 29 (5), pp.6599. ⟨10.1364/oe.416443⟩. ⟨hal-03413869⟩