Phosphate glass combines a lengthy life span of Er3+ higher laser stage with effective Strength transfer among Yb3+ and Er3+ ions and lowered upconversion losses, thus offering efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in range-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We current https://khalili813hec3.theobloggers.com/profile