Towards high-power MOPA architectures in single-mode fibers for mid-IR mode-locked operation.

We report on a master oscillator power amplifier (MOPA) system at 2.8 µm to achieve an average power of 10.28 W with a pulse energy and peak power of 403 nJ and 5.

2.8-µm polarization-maintaining Er fiber laser mode-locked by a GaSb-based SESAM.

A GaSb-based SEmiconductor Saturable Absorber Mirror (SESAM) enables continuous-wave picosecond mode-locked operation with excellent stability of a polarization-maintaining mid-infrared Er:ZBLAN fiber laser. The GaSb-based SESAM mode-locked fiber laser delivers an average output power of 190 mW at 2.76 µm at a repetition rate of 32.

Deep-red double-clad fiber laser at 717 nm.

We report on a double-clad fiber laser operating on the P → F Pr transition (in the deep-red spectral range) pumped by a GaN diode laser at ∼442 nm. It employs a 0.8-mol% PrF-doped ZBLAN double-clad fiber with a 7.

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.

Directly diode-pumped mid-infrared dysprosium fiber laser.

We report the demonstration of a Dy-doped ZBLAN fiber laser directly diode-pumped at 800 nm utilizing a codoping scheme with Tm serving as the donor ion. In this initial demonstration, a modest output power of 12 mW is generated with a slope efficiency of 0.3% at an emission wavelength of 3.