Phosphate glass brings together an extended life span of Er3+ upper laser stage with effective Power transfer amongst Yb3+ and Er3+ ions and diminished upconversion losses, Hence giving successful operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in array-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We https://jackk924jhf4.wikisona.com/user