Phosphate glass combines a long life time of Er3+ upper laser level with productive Electricity transfer amongst Yb3+ and Er3+ ions and lowered upconversion losses, thus giving productive operation 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 current https://er-yb-yab-crystal74951.blogpixi.com/33383261/considerations-to-know-about-er-yb-yab-crystal