[10p-W834-1~14] 3.5 Laser system and materials

▼ [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)

Keywords: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.