Phosphate glass brings together a lengthy life span of Er3+ upper laser level with productive energy transfer amongst Yb3+ and Er3+ ions and minimized upconversion losses, Consequently supplying economical operation in passively Q-switched diode-pumped and flash-lump pumped lasers Utilized in range-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We https://peterp158wzz3.creacionblog.com/profile