Phosphate glass brings together an extended life time of Er3+ higher laser amount with efficient Power transfer involving Yb3+ and Er3+ ions and reduced upconversion losses, thus giving productive operation 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  We https://er-yb-yab-crystal17158.blognody.com/37157948/details-fiction-and-er-yb-yab-crystal