| 摘要 |
Two end facets of a solid state laser medium function as resonating mirrors that cause a pumping light beam to resonate within the solid state laser medium, which becomes a resonator. A pumping means outputs the pumping light beam, having at least two longitudinal modes and a coherence length greater than or equal to the resonator length of the resonator, to be input to the solid state laser medium such that the laser beam resonates within the resonator.
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