| 摘要 |
PROBLEM TO BE SOLVED: To enable one apparatus to output various laser beams having differ ent optical intensity and different pulse periods and to make the apparatus compact. SOLUTION: There are provided in one casing 22, lower oscillators 11, 12 for outputting continuous wave (CW) laser beams, laser oscillator 13, 14 for outputting pulse wave (PW) laser beams, and a light synthesizing optical system 21 consisting of reflector system 19 and an optical fiber incidence optical system 20. The laser beams from the laser oscillator 11, 12, 13, 14 are synthesized and sent to a working tool 24 via an optical fiber 23 and are utilized in laser working. When they are used, particular ones of the laser oscillators 11, 14 are activated and oscillation phases of the oscillator 13, 14 are adjusted to output various laser beams. |
