Phosphate glass brings together a protracted life span of Er3+ upper laser level with successful energy transfer involving Yb3+ and Er3+ ions and diminished upconversion losses, Therefore providing efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in array-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We https://hermannx470dee5.buscawiki.com/user