Stable LiNdP(4)O(12) miniature laser

A miniature LiNdP(4)O(12) laser with a compact resonator is reported. Stable cw laser operation at 1.047 microm was obtained in a single-longitudinal and single-transverse mode by coaxial pumping with an argon laser (5145 A). Threshold pump power was 7.2 mW, and the maximum output power in the single-mode operation was 4 mW. The conditions for single-mode operation were considered in detail experimentally and theoretically.