Phosphate glass brings together a long life span of Er3+ higher laser level with economical Power transfer among Yb3+ and Er3+ ions and lowered upconversion losses, As a result furnishing productive operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in assortment-finders. language �?中国 韩国 韩国 韩国 韩国 韩国 https://erybyabcrystal07284.life3dblog.com/32238563/a-review-of-er-yb-yab-crystal