The ability to process optical signals without passing into the electrical domain has always
attracted the attention of the research community. Processing photons by photons unfolds …

We provide a perspective overview of the emerging field of nonlinear optics in multimode
optical fibers. These fibers enable new methods for the ultrafast light-activated control of …

We review the current status of mode-division multiplexing (MDM) techniques in fibers and
on chips. Three system applications are introduced, including quasi-single mode …

In this paper, we report on a high-power and widely tunable thulium-doped fiber laser
(TDFL) based on a monolithic master oscillator power amplifier (MOPA) system. The master …

In this work, we report the modeling and the experimental demonstration of intermodal
spontaneous as well as stimulated four-wave mixing (FWM) in silicon waveguides. In …

Optical parametric amplifiers rely on second-order susceptibility (three-wave mixing) or third-
order susceptibility (four-wave mixing) in a nonlinear process where the energy of incoming …

Intermodal four-wave mixing (FWM) processes have recently attracted significant interest for
all-optical signal processing applications thanks to the possibility to control the propagation …

Supercontinuum generation enabled a series of key technologies such as frequency comb
sources, ultrashort pulse sources in the ultraviolet or the mid-infrared, as well as broadband …

We demonstrate, both experimentally and numerically, all-optical mode and wavelength
conversion both within the C-band and between the C-and L-bands. This is achieved by …

Parametric amplifiers relying on the nonlinear four-wave mixing process are known for their
signature symmetric gain spectrum, where signal and idler sidebands are generated on both …