Nonlinear Dynamics in Semiconductor Lasers - Abstract
Microchip lasers are very efficient and convenient coherent light sources. However they have a disadvantage that especially in high power regimes the spatial quality of emitted beam is relatively low (large angular divergence). We show that the intracavity photonic crystals with spatial filtering functionality, can strongly improve the spatial characteristics of microchip laser. The angular divergence of the emitted beam is strongly reduced, and the radiation brightness is significantly increased due to the intracavity photonic crystal spatial filter.