Mid-infrared fiber sources, emitting between 2.5 µm and 5.0 µm, are interesting for their
great potential in several application fields such as material processing, biomedicine …

Abstract Mid‐infrared (mid‐IR) ultrafast lasers are widely employed in biomedicine,
molecular spectroscopy, material processing, and nonlinear optics. With the improvement of …

After decades of research, there are almost half a dozen efficiently pumped rare earth laser
transitions in a fiber laser format capable of Watt-level output. These systems use near-IR …

A laboratory realization of an actively Q-switched Dy 3+-doped fluoride fiber laser operating
near 3.0 μm is reported. Two laser cavities were realized: one based on 1000 ppm Dy 3+ …

By combining nonlinear polarization rotation (NPR) and semiconductor saturable absorber,
we report a hybrid mode-locked Er: ZBLAN fiber oscillator at 2.8 µm. Stable 325-fs mode …

A GaSb-based SEmiconductor Saturable Absorber Mirror (SESAM) enables continuous-
wave picosecond mode-locked operation with excellent stability of a polarization …

In this Letter, a high-stability, linearly polarized mode-locked polarization-maintaining (PM)
Er^ 3+-doped fluoride fiber oscillator at∼ 2.8 µm is presented for the first time, to the best of …

Since the early 1990s, when researchers began to explore rare-earth-doped mid-infrared
glass fibers, fiber laser systems have emerged as promising high-brightness light sources …

A mode-locked, dual-wavelength pumped 3.5 m fiber laser using frequency shifted feedback
utilizing an acousto-optic modulator is reported. Pulses of 3.8 ps with 9.7 nJ were obtained …

We report on a mid-infrared erbium planar waveguide laser operating on the 4 I 11/2→ 4 I
13/2 transition. It employs a heavily doped 10.6 at.% Er 3+: LiYF 4 single-crystalline layer …