Phosphate glass brings together a lengthy lifetime of Er3+ upper laser level with economical Electrical power transfer between Yb3+ and Er3+ ions and decreased upconversion losses, So furnishing economical 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://altonq146onk7.mysticwiki.com/user