Phosphate glass combines a protracted life span of Er3+ higher laser stage with economical Power transfer among Yb3+ and Er3+ ions and diminished upconversion losses, As a result providing efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in variety-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  https://jamesc030pqs0.creacionblog.com/profile