Efficient yellow Dy:ZBLAN fiber laser with high-brightness diode-pumping at 450 nm.

We report on a low-threshold efficient yellow Dy-fiber laser with good beam quality featuring high-brightness pumping. It employs a single-clad 0.2 mol% Dy:ZBLAN fiber pumped by two 450-nm blue GaN laser diodes.

Watt-level visible laser in double-clad Pr-doped fluoride fiber pumped by a GaN diode.

We report on a red praseodymium fiber laser delivering 1.07 W at 634.5 nm with a slope efficiency of 20.

Watt-level efficient 2.3 µm thulium fluoride fiber laser.

We report on an efficient mid-infrared thulium (Tm) fiber laser operating on the → transition and featuring an upconversion pumping scheme. This laser comprises a heavily -doped (2.50 mol.