Phosphate glass brings together a protracted life span of Er3+ higher laser degree with productive Strength transfer between Yb3+ and Er3+ ions and lowered upconversion losses, thus offering effective 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-crystal51604.onzeblog.com/33127384/a-secret-weapon-for-er-yb-yab-crystal