Phosphate glass brings together a lengthy lifetime of Er3+ upper laser level with productive Electricity transfer concerning Yb3+ and Er3+ ions and reduced upconversion losses, Hence delivering successful Procedure 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 current https://richardn024kjg5.59bloggers.com/profile