Phosphate glass combines a long life span of Er3+ upper laser stage with productive Strength transfer among Yb3+ and Er3+ ions and lessened upconversion losses, thus giving effective operation 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 existing https://erybyabcrystal28405.ezblogz.com/64891006/er-yb-yab-crystal-an-overview