Low-coherence reflectometry of thermal properties in diode-laser-pumped high-power solid-state laser

摘要

Low-coherence reflectometer employing multiple passages of 1.3-/spl mu/m low-coherence probe light within the gain medium was used to study the thermal properties of diode-laser-pumped high-power Nd:YVO/sub 4/ laser and its intracavity frequency doubled version. The longitudinal optical length resolution is 0.5 /spl mu/m. An IR slope efficiency as high as 68% is achieved as a result.