Phosphate glass brings together a long lifetime of Er3+ upper laser amount with economical energy transfer in between Yb3+ and Er3+ ions and lowered upconversion losses, As a result giving effective Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in range-finders. language �?中国 韩国 韩国 韩国 韩国 韩国 https://waylonxzyxt.blazingblog.com/33323830/rumored-buzz-on-er-yb-yab-crystal