Phosphate glass brings together a long lifetime of Er3+ upper laser degree with successful Electrical power transfer in between Yb3+ and Er3+ ions and lowered upconversion losses, Consequently furnishing efficient operation 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://elliottzbbyv.liberty-blog.com/33385844/not-known-details-about-er-yb-yab-crystal