Phosphate glass brings together a protracted life time of Er3+ higher laser amount with successful Electricity transfer concerning Yb3+ and Er3+ ions and lessened upconversion losses, Consequently giving effective 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://englanda861rrk5.blogpixi.com/profile