Solid-state microchip lasers are perhaps the ultimate in miniaturization of diode pumped lasers with extremely high spatial profile and single longitudinal mode and ultra short pulse durations. These lasers are formed by application of dielectric mirrors directly to two near parallel surfaces of a thin slice of gain material e.g. Nd: YVO4, Nd: YAG. The short cavities can lead to inherently good mechanical stability as well as single-frequency operation. This technology is being widely explored all over the world for generation of tens of milliwatts to hundreds of milliwatts of CW power in red, green and blue region Microchip lasers find applications not only in industrial and scientific fields but they can also lead to ultra-compact and powerful lasers for defence applications such as dazzler.