Thulium-doped fiber lasers (TDFLs) have had the second highest growth in average output
power next to ytterbium-doped fiber lasers. This has been enabled by access to high power …

A 1.1 kW CW fiber amplifier emitting at 1.95 µm and phase modulated at 5 GHz, with 51%
optical conversion efficiency and near diffraction limited beam quality (M2< 1.1) is …

We present and characterize a narrow-linewidth external-cavity diode laser at 2 μm, and
show that it represents a low-cost, high-performance alternative to fiber lasers for research …

We report on high-power thulium-doped fiber amplifiers built using a nanoparticle-doped
double-clad, pedestal-style large mode area fiber. The applied nanoparticle doping …

We present the pedestal-free thulium doped silica fiber with a large nanostructured core
optimized for fiber lasers. The fiber is composed of over 6 thousand thulium doped silica …

We present the selective excitation of the fundamental mode in an anti-resonant hollow-core
fiber (ARHCF) fusion-spliced with a commercial large mode area (LMA) fiber. By designing …

We report a hybrid process by combining both vapor-phase and solution-doping techniques
of rare-earth doped preform fabrication in conjunction with the MCVD technique, in order to …

We present the optimization of a 2.1-µm continuous wave monolithic single-oscillator laser
by adapting the Fiber Bragg Grating (FBG) reflected wavelength to the maximum gain …

An all-fiber laser system is presented with a simple MOPA configuration composed of a seed
laser followed by a one-stage high-power amplifier. The seed delivers 10 W of output power …

We present and characterize a simple CO 2 laser processing technique for the fabrication of
compact all-glass optical fiber cladding light strippers. We investigate the cladding light loss …