“…Yttrium aluminum garnet Y 3 Al 5 O 12 (YAG) is an attractive laser host material because of its better thermal, chemical and mechanical properties [1,2]. Ytterbium (Yb 3+ ) doped materials are of much interest to the diode-pumped solid-state lasers due to their high quantum efficiency and no concentration quenching [3][4][5][6][7].…”