Phosphate glass combines a long life time of Er3+ upper laser stage with successful energy transfer between Yb3+ and Er3+ ions and minimized upconversion losses, As a result providing effective operation in passively Q-switched diode-pumped and flash-lump pumped lasers Utilized in array-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  https://kingdomo035nlj6.blog5star.com/profile