Highly-Efficient Femtosecond-Laser-Written Waveguide Lasers at ∼2 μm in Monoclinic Tm:MgWO4

1. Kifle, E.
2. Loiko, P.
3. De Aldana, J.R.V.
4. Rodenas, A.
5. Zhang, L.
6. Lin, Z.
7. Lin, H.
8. Zhang, G.
9. Petrov, V.
10. Griebner, U.
11. Aguilo, M.
12. Diaz, F.
13. Mateos, X.
14. Chen, W.