Phosphate glass combines a lengthy life time of Er3+ higher laser degree with productive Power transfer concerning Yb3+ and Er3+ ions and diminished upconversion losses, thus delivering economical Procedure 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://margareti802hff4.59bloggers.com/profile