We report a strong spectral broadening of femtosecond pulses propagating in a single-mode
As-S glass fiber of 1.5 m length. The pump pulse spectrum is broadened by a factor of five …

Femtosecond pulses with broad tunability in the range of 2–3 μm are generated in a
germanate-glass core silica-glass cladding fiber with a driving pulse at 2 μm produced by an …

The spectral distributions of 8-psec ultrashort laser pulses propagating through multimode
glass fibers were measured and compared with those of single-mode fibers at comparable …

The propagation of high-peak-power (> 10-kW) sub-100-fs pulses near the zero-dispersion
wavelength of an optical fiber was studied experimentally. Four-photon mixing and …

We present an improved design of an amplified Er: fiber laser system for the generation of
intense femtosecond pulses. By properly controlling the influence of optical nonlinearities …

Nonlinear spatiotemporal dynamics of femtosecond pulses in a hexagonal seven-core silica
fiber pumped by a sub-μJ 370 fs Er: fiber chirped pulse amplification (CPA) system were …

The optical pulse evolution in a highly nonlinear normal dispersion-increasing fiber has
been considered, both experimentally and theoretically. It was found that large spectral …

Femtosecond pulses in the 50–60-TW power range have been generated at 1064 nm by
using the chirped-pulse-amplification technique applied to a Ti: sapphire/Nd: silicate glass …

Femtosecond pulse amplification in a cladding-pumped fiber amplifier is demonstrated for
the first time to our knowledge. Using a cladding-pumped erbium-doped fiber power …

We demonstrate experimentally and theoretically that frequency-modulated femtosecond
laser pulses can be spectrally narrowed by self-phase modulation in optical fibers. We …