Phosphate glass combines a lengthy life time of Er3+ upper laser degree with economical Vitality transfer concerning Yb3+ and Er3+ ions and minimized upconversion losses, Hence giving effective operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in selection-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We report https://toria570yws0.wikibestproducts.com/user