Phosphate glass brings together a lengthy lifetime of Er3+ higher laser level with successful Power transfer amongst Yb3+ and Er3+ ions and decreased upconversion losses, Therefore supplying productive Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers used in vary-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We report https://erybyabcrystal85173.wssblogs.com/33123796/er-yb-yab-crystal-an-overview