INFLUENCE OF DETUNING ON THE PROPERTIES OF LASER EQUATIONS.

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Stability of a detuned single mode homogeneously broadened ring laser

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Time-dependent phase transitions

info:eu-repo/semantics/publishe

Influence of noise on delayed bifurcations

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Dynamics of a Two-Mode Semiconductor Laser

We analyze the properties of a semiconductor laser in a ring cavity when two modes can oscillate. With this model we show that phase-sensitive mode-mode interactions can nevertheless influence the laser dynamics through their dependence on the spatial Fourier components of the carrier density. In particular, these interactions provide a mechanism by which single-mode solutions are destabilized while periodic and quasi-periodic two-mode solutions can occur. © 1992 IEEESCOPUS: ar.jinfo:eu-repo/semantics/publishe

Phase and amplitude dynamics in the laser Lorenz model

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Optical bistability and spontaneous switching between steady state solutions in a bidirectional ring laser

info:eu-repo/semantics/publishe

High second-order nonlinear susceptibility induced in chalcogenide glasses by thermal poling

International audienceHigh second-order susceptibility has been created in a chalcogenide glass from Ge-Sb-S system. A thermal poling process was used to produce this non-linear effect and a second harmonic generation experiment allowed characterizing the phenomenon. A maximum χ(2) value of 8.0±0.5 pm/V was measured for the first time to our best knowledge in sulfide glasses

Stabilization of the second-order susceptibility induced in a sulfide chalcogenide glass by thermal poling

International audienceA second-order susceptibility χ(2) is created by the thermal poling method in a bulk sample of Ga5Ge20Sb10S65 sulfide chalcogenide glass. We present experimental results focusing on the time-evolution properties of the created nonlinear layer. By cycling the poling operation on a sample, the generated second harmonic signal is improved, and the second-order nonlinearity is shown to be stable over several months. The χ(2) susceptibility profile is carefully reconstructed and its maximum value reaches 4-5 pm/V

High third and second order non linearities of chalcogenide glasses and fibers for compact infrared non linear devices.

International audienc