Passively mode-locked diode-pumped Tm,Ho:LiYF4 laser

Marlène Paris (1) , Aleksey Tyazhev (1) , Pavel Loiko (2) , Rémi Soulard (2) , Jean-Louis Doualan (2) , Lauren Guillemot (2) , Alain Braud (2) , Thomas Godin (1) , Patrice Camy (2) , Ammar Hideur (1)

1 CORIA - Complexe de recherche interprofessionnel en aérothermochimie
2 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique

We report on the first demonstration of a diode-pumped passively mode-locked Tm,Ho:LiYF4 laser. Stable continuous-wave mode-locking is achieved by employing a single-layer graphene as a saturable absorber (SA). For a reflection-type graphene-SA, the laser delivers 5.2 ps pulses at ~2051 nm with an average output power of 40 mW at a repetition rate of 89.86 MHz. With a transmission-type graphene-SA and smaller output coupling, the output power is scaled up to 80 mW while the laser operated in a double-pulse regime.

Domaines: Physique [physics]; Optique [physics.optics]

Marlène Paris, Aleksey Tyazhev, Pavel Loiko, Rémi Soulard, Jean-Louis Doualan, et al.. Passively mode-locked diode-pumped Tm,Ho:LiYF4 laser. Laser Physics Letters, 2020, 17 (4), pp.045801. ⟨10.1088/1612-202X/ab6b25⟩. ⟨hal-02558503⟩