[CThP1H] Solid State and Vortex Lasers

[CThP1H-01] Handedness control of watt-level 1173 nm vortex mode output from a self-Raman Nd:GdVO₄ laser

*Yuanyuan Ma¹, Haruna Sugahara¹, Andrew J Lee^2,3, Helen M Pask², Katsuhiko Miyamoto^1,4, Takashige Omatsu^1,4 (1. Chiba Univ. (Japan), 2. MQ Photonics Res. Centre, Macquarie Univ. (Australia), 3. SCIWRITE (Australia), 4. Molecular Chirality Res. Center (Japan))

[Presentation Style] Onsite

We demonstrate, for the first time of the best of our knowledge, the handedness control of a continuous-wave 1173 nm optical vortex output from a self-Raman Nd:GdVO₄ laser by employing a tight needle pumping beam with an off-axis pumping geometry.