Stable Excitation of Orbital Angular Momentum States in Air-core Fiber Seeded by an Integrated Optical Vortex Beam Emitter
2020
We experimentally demonstrate excitation of orbital angular momentum states in an air-core fiber by a silicon integrated vortex beam emitter which is designed and fabricated to match the modes supported by the fiber. The coupling loss is measured to be ∼7.5 dB. Excitation of eigenmodes is confirmed by analyzing the fiber output.
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