Phosphate glass brings together a protracted life time of Er3+ upper laser level with economical energy transfer in between Yb3+ and Er3+ ions and lowered upconversion losses, As a result offering effective operation in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in selection-finders. language �?中国 韩国 韩国 韩国 韩国 https://matthewn266rni5.aboutyoublog.com/profile