Phosphate glass brings together a lengthy life span of Er3+ higher laser level with effective Power transfer in between Yb3+ and Er3+ ions and lowered upconversion losses, So giving effective Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in vary-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  https://johnm790ayv1.techionblog.com/profile