SPATIOTEMPORAL DYNAMICS OF A THIN-LAYER LASER

The spatiotemporal dynamics of a laser consisting of a thin layer of a ctive material, whose thickness is less than the lasing wavelength, an d feedback mirror, has been analyzed on the basis of derived complex o rder-parameter equations, namely, Cross-Newell, Newell-Whitehead-Segel , and Swift-Hohenberg equations. We have shown that the thin-layer las er can have an output in the form of traveling waves and that they are stable in a wide region of control parameters. Numerical simulations carried out for two-dimensional laser dynamics demonstrate the possibi lity of spontaneous formation of rhomboid patterns, and domains contai ning traveling waves with different orientations.