Ultrafast fiber lasers combining high peak power and excellent beam quality in the 1-µm
wavelength range have been explored to applications in industry, medicine and …

Shaping single-mode operation in high-power fibers requires a precise knowledge of the
gain-medium optical properties. This requires precise measurements of the refractive index …

We report on the design, realization and testing in pulsed amplification regime of a double-
cladding, large mode area, polarization maintaining, solid core photonic bandgap fiber with …

To prevent the thermally induced spatial beam degradation occurring in high-power fiber
lasers and amplifiers, index-depressed core “fully aperiodic large-pitch fibers”(FA-LPFs) …

A newly designed all-solid step-index Yb-doped aluminosilicate large mode area fiber for
achieving high peak power at near diffraction limited beam quality with local adiabatic …

In this work we investigate transverse mode instability (TMI) in the presence of pump
intensity noise and a controlled perturbation of the input coupling for a rod-type fiber …

We report here on an experimental investigation of the temporal behavior of transverse
mode instabilities into “fully aperiodic large-pitch fibers”(FA-LPFs) operated in high-power …

Despite the increasing demand for high-energy erbium lasers for LIDAR imaging
applications, the scaling of the current Er-Yb co-doped technology is still hindered by a 1 …

During recent years, the optical-fiber-based simultaneous sensing of strain and temperature
has attracted increased interest for different applications, eg, in medicine, architecture, and …

We demonstrated an optimization of a picosecond fiber amplifier based on Yb-doped
tapered fiber in a spectral range of 1030 nm. Nonlinear effects limiting peak power scaling …