| 摘要 |
PURPOSE:To output two laser beams orbiting in two directions from an output mirror toward direction in a solid laser device using a ring resonator by specifying an angle made by a pair of outgoing faces formed in grooves with respect to an axial line passing a partial transmitting face. CONSTITUTION:An output mirror 15 is formed with a partial transmitting face 17 on one of the ends and has an outgoing face 19 formed in a V-shaped groove with an angle of 2theta0 o on the other end, wherein adjacent both side faces are made to be highly reflecting faces 18 reflecting light which has transmitted through the partial transmitting face 17 and a direction of thickness is specified to a direction perpendicular to a face regulated by a ring light path. Then the angle theta0 is set to a value which satisfies n1Cos(thetax+theta0)=n2Costheta0 where an angle made by light which has transmitted through the partial transmitting face and an axial line is thetax, refraction index of a block body is n1, and refraction index outside the block body is n2. Thus laser beams A, B in two directions orbiting in a ring resonator can be directed in the same direction and output by the output mirror 15. |
