Phosphate glass combines an extended lifetime of Er3+ upper laser level with economical Power transfer among Yb3+ and Er3+ ions and lessened upconversion losses, Hence giving economical Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in range-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We report the https://emilioxwtnk.blogdigy.com/er-yb-yab-crystal-an-overview-49426246