REVERSE OXIDATION POST-GROWTH PROCESS FOR TAILORED GAIN PROFILE IN SOLID-STATE DEVICES

摘要

A laser rod (10") is provided having a tailored gain profile such that the quality of the output beam is enhanced. The laser rod has a concentration of active substitutional ions that is relatively high at the center of the rod and decreases to the surface of the rod. The laser rod further has a concentration of pre-active laser ions that is relatively high at the surface of the rod and decreases to the center of the rod. Methods are disclosed for creating a layer of inactive laser species in the near surface region of the laser rod using substitutional dopant ions and for providing the laser rod with a tailored gain profile such that the quality of the output beam is enhanced.