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 providing 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 We existing https://roberto370zaw1.ttblogs.com/profile