The UV anti-irradiation silica fibers have a step index distribution, with a low hydroxyl quartz core.The transmission rate of the normal ultraviolet silica fiber will pour down through a period of strong UV damage. To avoid this phenomenon, we get a kind of anti-irradiation silica fiber with special doping, special manufacturing and drawing process, which transmission rate doesn`t change much (about 80% of former one) after the long period of strong ultraviolet lighting. Its operating wavelength is 190nm to 1200nm, it performs better on spectrum analysis.

It can be applied in fields such as laser transmission, spectroscopy detection, UV lithography, medical sensing, biological detection, UV Raman spectroscopy, UV illuminance monitoring, high temperature measurement, medical diagnosis, etc.