Phosphate glass combines an extended life time of Er3+ upper laser stage with effective Power transfer concerning Yb3+ and Er3+ ions and lessened upconversion losses, As a result delivering efficient Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers used in variety-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  https://er-yb-yab-crystal40638.topbloghub.com/39617813/the-basic-principles-of-er-yb-yab-crystal