Phosphate glass combines an extended life span of Er3+ upper laser level with successful energy transfer between Yb3+ and Er3+ ions and reduced upconversion losses, As a result furnishing successful Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in array-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  https://er-yb-yab-crystal27148.blogmazing.com/32481540/er-yb-yab-crystal-an-overview