[10p-W834-1~14] 3.5 レーザー装置・材料

▼ [10p-W834-10] Multiple OAM states generation from a tunable optical vortex parametric laser

〇(DC)Roukuya Mamuti¹、Shigeki Nishida¹、Shunsuke Goto¹、Katsuhiko Miamoto^1,2、Takashige Omatsu^1,2 (1.Chiba University、2.Molecular Chirality Research Center)

キーワード：optical vortices, nonlinear optics, optical parametric oscillation

In this presentation, we report on the first demonstration of an OAM versatile tunable vortex laser with multiple OAM states based on a singly resonant optical parametric oscillator (OPO) formed of a non-critical phase-matching LiB₃O₅ (NCPM-LBO) crystal. The signal (high energy photon) and idler (low energy photon) should then share the OAM of the pump, so as to establish the OAM conservation law. The system with a compact cavity configuration produced six OAM states. Also, the vortex output could be tuned within a wavelength region of 0.74-1.86 nm.