Phosphate glass combines a long lifetime of Er3+ higher laser degree with successful Electricity transfer among Yb3+ and Er3+ ions and reduced upconversion losses, As a result giving effective operation in passively Q-switched diode-pumped and flash-lump pumped lasers Utilized in range-finders. language �?中国 韩国 韩国 韩国 韩国 韩国 We https://knoxejkli.bloggazza.com/33770644/the-5-second-trick-for-er-yb-yab-crystal