Phosphate glass brings together a protracted lifetime of Er3+ higher laser stage with successful Electrical power transfer concerning Yb3+ and Er3+ ions and diminished upconversion losses, Therefore 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  We https://juliusiljhe.tkzblog.com/32997482/er-yb-yab-crystal-an-overview