Phosphate glass combines an extended life time of Er3+ upper laser degree with successful energy transfer amongst Yb3+ and Er3+ ions and lessened upconversion losses, thus supplying efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in vary-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We report https://erybyabcrystal80134.bloggazzo.com/33847911/er-yb-yab-crystal-options