Phosphate glass combines an extended life time of Er3+ higher laser stage with economical Electrical power transfer amongst Yb3+ and Er3+ ions and reduced upconversion losses, Therefore giving productive Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers used in vary-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We https://er-yb-yab-crystal38427.blogkoo.com/er-yb-yab-crystal-an-overview-52572300