Extended Data Fig. 2: Chiral control and OAM characterization of spin–orbit-coupled emissions from two microrings by a cylindrical lens.
From: Spin–orbit microlaser emitting in a four-dimensional Hilbert space
a, Characterization of OAM emissions from the left microring under different pumping and measurement conditions (\({g}_{1}\gg {g}_{2}\), \({g}_{1}={g}_{2}\), and \({g}_{2}\gg {g}_{1}\)). b, Characterization of OAM emissions from the right microring under different pumping and measurement conditions (\({g}_{4}\gg {g}_{3}\), \({g}_{3}={g}_{4}\), and \({g}_{3}\gg {g}_{4}\)). In both a and b, top, middle and bottom rows show unpolarized, left-handed polarized, and right-handed polarized components of laser emission.
