Phosphate glass brings together a long life span of Er3+ upper laser level with productive energy transfer among Yb3+ and Er3+ ions and minimized upconversion losses, Consequently giving economical 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 https://er-yb-yab-crystal30628.dsiblogger.com/66094267/little-known-facts-about-er-yb-yab-crystal