Phosphate glass brings together an extended life time of Er3+ upper laser stage with economical energy transfer in between Yb3+ and Er3+ ions and diminished 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://michaelq135nnj6.boyblogguide.com/profile