Phosphate glass brings together a long life time of Er3+ higher laser degree with effective energy transfer involving Yb3+ and Er3+ ions and decreased upconversion losses, Therefore furnishing successful 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 https://elderq135nlj6.wiki-cms.com/user