Phosphate glass combines an extended life span of Er3+ upper laser degree with efficient Vitality transfer concerning Yb3+ and Er3+ ions and lessened upconversion losses, As a result supplying 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  https://erybyabcrystal18416.blogerus.com/55431063/er-yb-yab-crystal-an-overview