Dual-wavelength operation of a diode-pumped Nd:YVO4 laser at the 1064.1 & 1073.1 nm and 1064.1 & 1085.3 nm wavelength pairs

Two dual-wavelength operation regimes of a diode-pumped Nd:YVO4 laser were demonstrated at 1064.1 & 1073.1 and 1064.1 & 1085.3 nm with two intracavity birefringent plates. The output power ratio of the dual-wavelength output could be freely adjusted. The highest total output power was 1.44 W under the dual-wavelength condition with 1:1 power ratio for both wavelength pairs. The slope efficiency was more than 16% and optical-to-optical efficiency more than 13% with respect to the absorbed pump power.

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