Abstract
We report a watt-level visible-near-infrared (NIR) dual-wavelength Pr3+:LiYF4 (Pr:YLF) laser. This is the first report about the realization of visible-NIR dual-wavelength lasing in Pr:YLF crystal. The dual-wavelength lasers of 698 & 868 nm and 721 & 915 nm are directly realized without inserting any elements in the resonant cavity. The maximum output powers of the 698 & 868 nm and 721 & 915 nm dual-wavelength lasers are 1.31 W and 1.74 W, corresponding to slope efficiencies of 25.7% and 23.8%, and laser output power stabilities of 1.18% and 1.21%, respectively. The successful realization of the watt-level high-performance visible-NIR dual-wavelength laser can provide practical applications in medical diagnostics, treatment, and laser precision detection.
Published Version
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