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An Integrated Orbital Angular Momentum Mode Transmitter

A technology of orbital angular momentum and emitters, which is applied in the field of integrated optoelectronics and optical communication, can solve the problems of being unable to meet the development needs of high-level integration of core devices, and achieve the effect that the device process is mature and easy to implement, and the structure is simple and easy to realize

Active Publication Date: 2016-06-29
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these are passive devices, which essentially convert the generated Gaussian mode into an orbital angular momentum mode. The need for highly integrated core device scale development in interconnection systems

Method used

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  • An Integrated Orbital Angular Momentum Mode Transmitter
  • An Integrated Orbital Angular Momentum Mode Transmitter
  • An Integrated Orbital Angular Momentum Mode Transmitter

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Embodiment Construction

[0030] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0031] Such as figure 1 As shown, the integrated orbital angular momentum mode emitter provided by the present invention is composed of a substrate 1, a mirror structure 2, an active region 3, a transverse light field and electric field confinement layer 4, and a phase plate that produces an angular helical phase distribution 5 integrated growth.

[0032] The upper and lower mirror structures 2 and the active region 3 form a sandwich structure, forming a resonant cavit...

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Abstract

The invention belongs to the field of integrated optoelectronics and optical communication, and relates to an integrated orbital angular momentum mode emitter. The integrated orbital angular momentum mode emitter is integrated and grown from a substrate, a mirror structure, an active region, a lateral light field and electric field confinement layer, and a phase plate that produces an angular helical phase distribution, forming an independent integrated device. The phase plate that produces the angular spiral phase distribution can adopt a spiral continuous phase plate structure, a spiral stepped phase plate structure, a fork-shaped diffraction grating phase plate structure, and a metasurface phase plate structure, which can provide a structured phase with a spiral phase distribution along the angular direction. plate. The invention realizes the high integration and miniaturization of the orbital angular momentum mode transmitter, the device technology is mature and the structure is simple and easy to realize, and the emission orbital angular momentum mode can be flexibly changed by selecting the structural parameters of the reflector and the material system and structure of the active layer The wavelength plays an important role in accelerating the development of orbital angular momentum optical communication.

Description

technical field [0001] The invention belongs to the field of integrated optoelectronics and optical communication, and relates to an integrated orbital angular momentum mode emitter. Background technique [0002] In 1935, experiments showed that when the light beam is in a circularly polarized state, its photons can carry an angular momentum of spin angular momentum. In contrast, when the beam is linearly polarized and has a spatially helical phase distribution, its photons will carry an angular momentum of The orbital angular momentum of , where is the topological charge. In 1992, it was discovered that beams carrying orbital angular momentum could be obtained in the laboratory. Since then, orbital angular momentum beams have received more and more attention and have been widely used in many fields, including orbital angular momentum optical communication. Due to the characteristics of high spectral efficiency and good security, the optical communication technology u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/50
Inventor 王健赵一凡
Owner HUAZHONG UNIV OF SCI & TECH
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