Phosphate glass combines an extended life time of Er3+ higher laser level with productive Strength transfer concerning Yb3+ and Er3+ ions and reduced upconversion losses, thus supplying effective Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers Utilized in selection-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We report https://douglasx368uso8.wikibuysell.com/user