Study on the dynamic mode matching of multirod solid state lasers

Optical matrix of multirod laser resonator with difference in rod thermal lensing is used in considering the dynamic mode matching characteristics of active elements.By analyzing the relation between the defined normalized mode matching factor and the varying resonator parameters,we derived a relation for adjusting the resonator parameters of two rod system which result in a fine mode matching.Experimental results show in accordance with theoretical analysis and for two rod system we get the stable output power between 0W～530W.