An essential fraction of the surge-current production is based on combined heat and power plants where the mechanical energy of internal combustion engines is employed to power electric generators, and the exhaust gas is used for the exploitation of thermal energy. Consequently, the efficiency of such power plants and hence of the engines must be as high as possible while the pollutant emissions should be kept low. Such requirements cannot be realized satisfactorily any more when using conventional engine ignition techniques. Spark plugs reach their limits at the necessary high ignition pressures demanding for excessively high voltages. However, there are several alternative concepts like plasma ignition, high-frequency ignition, Diesel micro-pilot ignition and laser ignition which might contribute to an improvement of the overall efficiency. To our knowledge, laser ignition represents the most promising future ignition concept out of a number of reasons [1-4]. The main advantages of laser ignition, among many others, are performance enhancing high effective mean pressures in the combustion chamber as well as the feasibility of very lean mixtures lowering the flame temperature and consequently the NOX emissions.