Phosphate glass brings together a protracted life span of Er3+ higher laser amount with efficient Power transfer among Yb3+ and Er3+ ions and minimized upconversion losses, So providing efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers used in range-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We https://henrye691bbz2.wikipublicist.com/user