Phosphate glass brings together an extended life time of Er3+ higher laser level with economical Power transfer in between Yb3+ and Er3+ ions and reduced upconversion losses, Consequently supplying 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 https://irvingw357sqo8.dm-blog.com/profile