Phosphate glass brings together a lengthy life span of Er3+ higher laser stage with effective Electricity transfer between Yb3+ and Er3+ ions and decreased upconversion losses, So supplying productive operation 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 https://nickn025mlj6.ziblogs.com/profile