In recent years, 2D layered materials, including graphene, topological insulators, transition
metal dichalcogenides, black phosphorus, MXenes, graphitic carbon nitride, and metal …

Ultrafast fiber lasers have significant applications in laser communications, ultra-precision
manufacturing, biomedical diagnostics, and so on. Among all the types of ultrashort pulses …

Using density functional theory calculations, we have analyzed nonlinear optical properties
of a series of T-graphene quantum dots differing in their shape and size. Electronic …

Ultrafast lasers play an important role in a variety of applications ranging from optical
communications to medical diagnostics and industrial materials processing. Graphene and …

The first demonstration of a compact all-fiber figure-9 double-clad erbium-ytterbium laser
working in the dissipative soliton resonance (DSR) regime is presented. Mode-locking was …

Because of the advantages of tunability via size, shape, doping, and relatively low level of
loss and high extent of spatial confinement, graphene quantum dots (GQDs) are emerging …

Artificial saturable absorbers (SA) are nonlinear optical devices widely employed in mode‐
locked lasers. Among the artificial SAs are nonlinear polarization evolution (NPE) and …

In this work we present for the first time, to the best of our knowledge, a passively
synchronized thulium (Tm) and erbium (Er) doped fiber laser mode-locked by a common …

Graphene quantum dots (GQDs), the zero dimensional (0D) single nanostructures, have
many exciting technological applications in diversified fields such as sensors, light emitting …

A range of new 2D materials have recently been reported, including topological insulators,
transition-metal dichalcogenides, black phosphorus, MXenes, and metal-organic …