Dynamic Bragg gratings can be recorded in rare-earth (eg Er, Yb) doped optical fibres by
two counter-propagating mutually coherent laser waves via local saturation of the fibre …

Long dynamic population gratings (DPGs) formed in rare-earth-doped fibers have unique
spectral characteristics compared to other types of fiber gratings, making them suitable for …

Results of investigation of transient two-wave mixing via dynamic population gratings in Yb-
doped fibers with saturable absorption are reported. The recorded gratings are …

We present experimental results of two-wave mixing in single-mode Er-doped optical fibers
for which dynamic Bragg reflectance gratings are formed as a result of saturation of fiber …

Experimental observation of phase (ie refractive index) component in the dynamic gratings
recorded in erbium-doped optical fiber with saturation of optical absorption is reported. We …

We present a method for the estimation of the reflection spectra of transient gratings in rare-
earth doped fiber lasers having a self-sweeping of laser wavelength. We show that high …

We report on random lasing observed with 5-m-long Er-doped fiber comprising an array of
weak fiber Bragg gratings (FBGs) inscribed in the fiber core and uniformly distributed over …

Group delay tuning of optical pulses in pumped asymmetric fiber Bragg gratings below
lasing threshold is theoretically proposed. A gain-controlled transition from superluminal to …

We report, for the first time (to our knowledge), generation of Brillouin dynamic gratings
(BDGs) in few-mode optical fibers. A moving acoustic grating is generated by stimulated …

The influence of spatial migration of excitation among neighboring Er^ 3+ ions on the
dynamics of population grating formation in Er-doped optical fibers is reported. The effect …