[19p-431B-1~18] 3.5 Laser system and materials

[19p-431B-10] Generation of Higher-Order Vector Beams from Vertical Cavity Surface Emitting Laser using Optical Feedback

Yuki Nara¹, 〇Yuichi Kozawa¹, Shunichi Sato¹, Naoto Jikutani², Yasuhiro Higashi² (1.IMRAM Tohoku Univ., 2.Ricoh Co., Ltd.)

Keywords:VCSEL, Vector beam, Optical feedback

We have previously demonstrated the direct generation of vector beams with radial and azimuthal polarizations from a vertical cavity surface emitting laser (VCSEL) by optical feedback using an external cavity that was composed of a birefringent lens and a half mirror. In this talk, we present the generation of a vector Bessel-Gaussian mode beam, which is a higher-order mode in vector beams, from a newly constructed setup using a VCSEL.