Fast manipulation of laser localized structures in a monolithic vertical cavity with saturable absorber

Cavity Solitons in VCSEL Devices

“…Experimentally, CS have been observed in several systems based on photorefractive crystals [48], Na vapors [46], liquid crystal light valves [49,74], semiconductor optical amplifiers [50,68], and lasers [54,55,73,75]. In the latter, most experiments have been done in VCSELs, because their short cavity and large diameter insure a Fresnel number large enough to avoid the formation of patterns correlated over the whole extension of the system.…”

“…A compact CSL has been demonstrated in [73,75]. The device, a monolithic, optically pumped, vertical cavity laser with intracavity saturable absorber, is described in Section 2.2.…”

“…Note that the switch-on time is very fast (several ns) and only limited by relaxation oscillations [75], while the switch-off time is of the order of 1 or 2 ns, as expected in this kind of systems [95]. The same beam characteristics were used for both switch-on and switch-off.…”

“…If the distance between Coll. each laser CS is too small then laser CS shall not be independently controllable anymore [75]. The properties of clusters of laser localized structures and the associated motion is thoroughly studied in the theoretical paper of [96,97].…”

Adler synchronization of spatial laser solitons pinned by defects

“…Spatial LCS have recently been observed in semiconductor-based micro-resonators with either frequency-selective feedback [14,15] or saturable absorption [16,17]. For temporal LCS, such as those arising in fiber lasers, the effects of longitudinal inhomogeneities are washed out by the propagation dynamics along the cavity axis, and every soliton sees the same material characteristics.…”