Abstract
We have developed a fiexible CO2 laser beam guide with metal and polymer compound hollow tube. In this paper, it was concentrated the research which the higher peak short pulse CO2 laser beam transmission. The characteristics of incident beam is 500KW peak pulse power, 8Ons pulse width and 10Hz repeat pulse. One pulse energy is ca.40mJ. From the experimental result, the pulse beam transmittance was obtained ca.90%/m at straight shape power, 36mJ per pulse. In the bent shape tube with bending radius ca. 15cm, transmittance is ca. 80%/m, pulse shape is not change almost.
In this results, it was clarified that the hollow guide tube is useful flexible guide tube for higher pulse power CO2 laser transmission.
