Phosphate glass combines an extended life span of Er3+ higher laser degree with economical energy transfer in between Yb3+ and Er3+ ions and lowered upconversion losses, So furnishing economical Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers used in vary-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We https://erybyabcrystal35680.bloguetechno.com/getting-my-er-yb-yab-crystal-to-work-69910467