| 摘要 |
PURPOSE:To oscillate a laser beam of a large bore which can effectively transmit energy remotely by so disposing beam vendor group for a plurality of laser beams oscillated by a plurality of laser oscillators as to spatially occupy the minimum space. CONSTITUTION:A plurality of laser oscillators 21 for generating laser beams 23 of the same phase and wavelength, and beam vendor groups 24, 24' for altering the direction of the beams 23 are provided, and the vendor groups 24, 24' are so disposed for a plurality of laser beam lights 23 oscillated from the oscillator 21 as to spatially occupy the minimum space. For example, the oscillators 21 are simultaneously oscillated by coupling means to irradiate the laser beams 23 of the same phase and wavelength from an output window 22. The irradiated beams 23 are condensed by the vendor groups 24, 24' to become composite large bore beam 25 of diameter Do and, when transmitted at a distance L, it becomes a large bore beam 26 of diameter DL. The larger the Do is the better the output of the laser beam becomes with good convergency from the relationship between the Do and DL. |
