Phosphate glass combines a protracted life span of Er3+ higher laser amount with productive energy transfer amongst Yb3+ and Er3+ ions and lessened upconversion losses, thus supplying efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in variety-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We current https://napoleonn924kii5.plpwiki.com/user