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Photon orbital angular momentum chiral discriminator based on graphene mixed waveguide

A technology of orbital angular momentum and mixed waves, which can be used in instruments, optics, nonlinear optics, etc., can solve the problem of lack of identification devices, and achieve the effect of broad application prospects

Pending Publication Date: 2022-03-04
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are some devices that can generate beams carrying orbital angular momentum, but there is still a lack of identification devices for photon orbital angular momentum chirality in the terahertz range.

Method used

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  • Photon orbital angular momentum chiral discriminator based on graphene mixed waveguide
  • Photon orbital angular momentum chiral discriminator based on graphene mixed waveguide
  • Photon orbital angular momentum chiral discriminator based on graphene mixed waveguide

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Embodiment

[0030] A photon orbital angular momentum chiral discriminator based on graphene hybrid waveguide, comprising a substrate 9, the upper surface of the substrate 9 is provided with the first straight waveguide 2, the first curved waveguide 4 and the third straight waveguide 6 connected in sequence, The upper surface of the substrate 9 is also provided with a second straight waveguide 3, a second curved waveguide 5 and a fourth straight waveguide 7 connected in sequence, the graphene hybrid waveguide 1 is arranged on the first straight waveguide 2, and the front end of the first straight waveguide 2 is At the waveguide input end, the rear section of the first straight waveguide 2 is coupled with the second straight waveguide 3 and arranged in parallel. The graphene hybrid waveguide 1 is set in the uncoupling region of the first straight waveguide 2

[0031] The bottom of the substrate 9 is provided with doped silicon.

[0032] The first straight waveguide 2 , the first curved wav...

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Abstract

The photon orbital angular momentum chiral discriminator comprises a substrate, the upper surface of the substrate is provided with a first straight waveguide, a first bent waveguide and a third straight waveguide which are connected in sequence, and the upper surface of the substrate is further provided with a second straight waveguide, a second bent waveguide and a fourth straight waveguide which are connected in sequence. The graphene mixed waveguide is arranged on the first straight waveguide, the front end of the first straight waveguide is a waveguide input end, and the rear section of the first straight waveguide is coupled with and parallel to the second straight waveguide. According to the photon orbital angular momentum chiral recognizer based on the graphene mixed waveguide, graphene and the gallium arsenide waveguide are combined, and the photon orbital angular momentum chiral recognizer has very wide application prospects in the field of integrated photons.

Description

technical field [0001] The invention belongs to the technical fields of optical communication and optical information processing. Specifically, it relates to a photon orbital angular momentum chiral discriminator based on a graphene hybrid waveguide. Background technique [0002] With the advent of the 5G and big data era, people's demand for communication capacity is increasing day by day, and increasing the communication capacity and spectrum utilization of existing systems has become the most urgent problem to be solved. The wavefront phase structure of the vortex beam is helical, with orbital angular momentum, and the light intensity at the center of the beam is zero, and there is a phase singularity. The vortex light modes with different topological charge values ​​are orthogonal, so that the vortex phase A new degree of freedom develops new multiplexing technology in optical communication and improves the transmission capacity of optical communication. Due to the uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/01
CPCG02F1/0136
Inventor 曹振洲江莹肖之伟
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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