Phosphate glass combines a long lifetime of Er3+ upper laser degree with successful energy transfer in between Yb3+ and Er3+ ions and lowered upconversion losses, As a result furnishing economical 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://dallasbdeca.review-blogger.com/55019359/er-yb-yab-crystal-options