Phosphate glass brings together a protracted life span of Er3+ higher laser level with efficient Electrical power transfer concerning Yb3+ and Er3+ ions and reduced upconversion losses, thus supplying effective 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  https://manueljedby.bleepblogs.com/33761892/the-definitive-guide-to-er-yb-yab-crystal