A high-power continuous-wave (cw) laser operating at by utilizing a quasi-three-level transition is reported. The laser consists of a composite rod end pumped by a fiber-coupled diode laser and a simple plane-concave cavity. At an incident pump power of , a maximum cw output of at is obtained, achieving a slope efficiency of 45%. To the best of our knowledge, this is the highest output at ever generated by diode-pumped lasers. In addition, at an incident pump power of , a blue output at is achieved with a simple compact three-element cavity and a type-I lithium triborate crystal as a frequency doubler.
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