Phosphate glass brings together a protracted life span of Er3+ upper laser amount with successful Electrical power transfer in between Yb3+ and Er3+ ions and lessened upconversion losses, thus furnishing 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 https://chestere691anp3.bimmwiki.com/user