Anti-resonance ring fiber supporting multiple orbital angular momentum modes
A technology of orbital angular momentum and ring fiber, which is applied in cladding fiber, light guide, optics, etc., can solve the problems of being easily affected by ambient temperature, fiber doping with other materials, and complicated manufacturing processes, etc., to achieve strong environmental stability, The production process is simple, ensuring the effect of stable transmission
Pending Publication Date: 2019-01-01
JINAN UNIVERSITY
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Abstract
The invention relates to an anti-resonance ring fiber supporting multiple orbital angular momentum modes, which comprises a fiber base, a ring fiber core, cladding air holes and negative curvature glass tubes, wherein the cladding air holes are annularly arranged on the outer wall of the ring fiber core; the negative curvature glass tubes are annularly arranged on the outer layers of the claddingair holes. All modes are bound to the ring fiber core through total reflection, and the mode binding ability is enhanced by the anti-resonance effects of the negative curvature glass tubes. The refractive index distribution of the ring fiber core is matched with the energy distribution of the orbital angular momentum mode, the effective refractive index difference between eigenvector modes in thefiber can be effectively adjusted, and through designing the tube wall thickness and the size of the ring fiber core, the mode number and the mode separation degree are controlled. The thickness of the negative curvature glass tubes has anti-resonance effects on light propagation, and a cut-off condition for vector modes is realized. Short-distance large-capacity mode-division multiplexing transmission without multiple-input multiple-output digital signal processing can be realized.
Application Domain
Cladded optical fibreOptical waveguide light guide
Technology Topic
PhysicsBinding ability +17
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