Linear multimode optical systems have enabled clean experimental observations and the
applications of numerous phenomena that continually extend the boundaries of wave …

Multimode fiber (MMF) lasers are emerging as a remarkable testbed to study nonlinear
spatiotemporal physics with potential applications spanning from high energy pulse …

The orbital degrees of freedom play a pivotal role in understanding fundamental
phenomena in solid-state materials as well as exotic quantum states of matter including …

Since its first demonstration in graded-index multimode fibers, spatial beam self-cleaning
has attracted a growing research interest. It allows for the propagation of beams with a bell …

Statistical mechanics demands that the temperature of a system is positive provided that its
internal energy has no upper bound. Yet if this condition is not met, it is possible to attain …

The overall goal of photonics research is to understand and control light in new and richer
ways to facilitate new and richer applications. Many major developments to this end have …

Spatiotemporal mode-locking (STML) in multi-mode fiber (MMF) lasers has extended the
concept of temporal dissipative solitons into spatiotemporal dissipative solitons. To date, all …

Although the temperature of a thermodynamic system is usually believed to be a positive
quantity, under particular conditions, negative-temperature equilibrium states are also …

The input power-induced transformation of the transverse intensity profile at the output of
graded-index multimode optical fibers from speckles into a bell-shaped beam sitting on a …

We address the problem of thermalization in the presence of a time-dependent disorder in
the framework of the nonlinear Schrödinger (or Gross-Pitaevskii) equation with a random …