Phosphate glass brings together a long lifetime of Er3+ upper laser stage with economical energy transfer among Yb3+ and Er3+ ions and diminished upconversion losses, Consequently furnishing efficient operation in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in vary-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We existing https://er-yb-yab-crystal53940.blog5star.com/33644069/the-basic-principles-of-er-yb-yab-crystal