... is vertical structure, using the low order mode carbon dioxide laser, laser mode is good, focusing spot small, power density, wavelength ... to use, the operation is large. High stability of laser power, size, free to pre-selected, self-diagnosis with state directives. Can ... radius of 110cm Type of sealed-off CO2 laser laser Low order mode laser mode Laser wavelength 10.6μm Divergence angle 4mrad ...