Bismuth-doped fibre amplifiers offer an attractive solution for expanding the bandwidth of
fibre-optic telecommunication systems beyond the current C-band (1530-1565 nm). We …

Efficient, narrow-linewidth Tm-doped fiber lasers operating in the 1.7 μm wavelength regime
are of significant importance for a wide range of applications. To achieve high-power 1.7-μm …

Hollow-core optical fibers (HCFs) have unique properties like low latency, negligible optical
nonlinearity, wide low-loss spectrum, up to 2100 nm, the ability to carry high power, and …

Ensuring self-driven mode-locking and broadband wavelength tuneability in all-fibre-
integrated femtosecond laser sources enables a new level of their versatility and extends …

Ultrashort pulse generation at the short-wave infrared (SWIR) wavelength ranges from 1.6 to
2.5 μ m and together with benefits of the all-fiber design has transformed lasers into an …

We report an all-fiber high pulse energy ultrafast laser and amplifier operating at the short
wavelength side of the thulium (Tm) emission band. An in-house W-type normal dispersion …

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 …

The development of visible fiber lasers toward increasing power and variety has facilitated
their usage in a rapidly growing number of scientific and industrial applications. Until now …

We propose a parabolic W-type thulium-doped fiber for the 1.7 µm high-energy femtosecond
pulsed laser. Despite its attractive normal dispersion, the fiber offers high gain in 1.7 µm …