论文信息 - 7.3 W of single-frequency output power at 2.09 mum from an Ho:YAG monolithic nonplanar ring laser.

7.3 W of single-frequency output power at 2.09 mum from an Ho:YAG monolithic nonplanar ring laser.

Single-frequency output power of 7.3 W at 2.09 mum from a monolithic Ho:YAG nonplanar ring oscillator (NPRO) is demonstrated. Resonantly pumped by a Tm-doped fiber laser at 1.91 mum, the Ho:YAG NPRO produces 71% of slope efficiency with respect to absorbed pump power and nearly diffraction-limited output with a beam quality parameter of M(2) approximately 1.1.

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