Growth and characterization of Yb:Ho:YAG single crystal fiber

The characteristics of high-quality Yb:YAG single crystal fibers grown by a LHPG method and the effects of their discoloration

“…The theoretical single-mode output of a YAG SCF laser is more than 100 times that of a glass ber laser. [19][20][21][22][23] Yb-doped YAG crystals are an excellent laser medium. Yb 3+ ions have a simple electronic structure, with only one excited state (2F 5/2 ) above the ground state (2F 7/2 ), avoiding thermal effects due to up-conversion and excited state absorption.…”