Abstract:Chiral lasers with orbital angular momenta (OAM) are building blocks in developing high-dimensional integrated photonic devices. However, it remains demanding to arbitrarily manipulate the precise degree of chirality (DOC) and quantum numbers of OAM in microscale lasers. This study reports a new strategy to generate OAM microlasers with tunable DOC and large quantum numbers through a ring-structured Fabry-Perot microcavity with nanoscale symmetry-broken geometry. By exploiting the uneven potential of photons d… Show more
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