Phosphate glass combines a protracted life time of Er3+ upper laser stage with efficient Power transfer amongst Yb3+ and Er3+ ions and lessened upconversion losses, thus offering productive 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  We report https://cullenz345hbt9.wikimidpoint.com/user