| 摘要 |
PURPOSE:To obtain coherent high power laser light by splitting first laser light in a single mode into a plurality of laser lights, injecting and synchronizing the laser lights into a plurality of laser light sources, synthesizing a plurality of emitted oscillated laser lights, and taking out the laser light. CONSTITUTION:Master laser light L14 is rotated by -90 deg. in a third HWP 20. Then, the light is inputted into the light emitting region of the edge face of a second broad area laser 22 which is arranged so that the current stripe direction and pressure vector direction are provided in the direction in parallel with the surface of the paper. In this way, fourth and fifth master laser lights L13 and L14 are injected and synchronized in the first and second broad area lasers 19 and 22. Thus, first and second oscillated laser light L20 and L21, which are oscillated at the same frequency and have the equal frequency, are emitted. The oscillated laser lights L20 and L21 are synthesized in a second PBS 16. The first synthesized laser light L22 having the polarizing direction which is rotated by +45 deg. with respect to the oscillated laser light L20 is outputted. |
