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The lasing characteristics of a cw Tm,Ho:YLF microchip laser in a double cavity configuration are reported. The oscillation wavelength decreased continuously and periodic mode hopping occurred as the absorbed pump power increased. Furthermore, the output power could be changed by varying the thickness of the air gap distance at constant absorbed pump power.
The lasing condition and frequency stability of the single longitudinal mode oscillation of a diode laser pumped 2 μm Tm,Ho:YLF microchip laser at room temperature are reported. It is shown that the microchip laser with an output mirror of 99.0% reflectivity had better single longitudinal mode performance than that with an output mirror of 99.5% reflectivity. The frequency tuning rate when varying...
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