The principle of laser cutting is based on materials that can absorb the wavelength of laser light and melt. The glass is transparent and the wavelength range of the automatic fiber laser cutting machine is not within the absorption range of the glass, thus it just absorbs very little laser energy within the visible spectrum and cannot be cut by fiber laser processing machines. If that’s your situation, then we would recommend engraving tempered glass or acrylic. HF·BP aluminum and stain