Intra-cavity frequency-doubled Yb:KYW laser using periodically poled Rb-doped KTP with a volume Bragg grating input coupler

β′-Yb3+:Gd2(MoO4)3 crystal – A promising self-frequency doubling laser material

“…Therefore, self-frequency doubling (SFD) laser crystals, which possess laser and nonlinear optical functions simultaneously, have attracted researchers' interests. Over the past few decades, a lot of progress has been made in search for SFD laser crystals, such as Re:LiNbO 3 (Re¼ Nd, Tm, Ho) [5], Re:YAl(BO 3 ) 4 (Re¼ Nd, Yb, Er, Dy) [6], Nd: Ca 4 GdO(BO 3 ) 3 [7], Nd:GdAl 3 (BO 3 ) 4 [8] and Nd:La 2 CaB 10 O 9 [9,10]. However, the applications of these SFD laser crystals are not commercialized effectively.…”

“…Blue and green lasers have wide applications in many fields, such as color display, high density optical data storage, laser printing, biotechnology, medicine, submarine communication and so on [1][2][3][4]. At present, the main method to obtain blue and green lasers is through the combination of laser crystal (output wavelength at about 1 μm) and nonlinear optical crystal.…”