Abstract
Low-threshold tunable cw laser oscillation is achieved at the4 F 3/2→4 I 13/2 transition of NdP5O14. Continuous tunign over 1.8% of the central wavelenght is possible with 55 mW of absorbed pump power. At gain line maximum near 1.32 μ, the output power exceeded 1 mW. Pump threshold as low as 8 mW was observed. Reliable cw operation of the 1.3 μm NdP5O14 laser pumped by a 15 mW AlGaAs laser diode is demonstrated.
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