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Two-dimensional integrated optical fiber online storage based on linear array multi-core optical fiber

A multi-core optical fiber, linear array technology, applied in the field of optical fiber online storage, can solve the problems of optical communication system interconnection, one-dimensional restraint, etc., and achieve the effect of small size and simple structure

Inactive Publication Date: 2015-08-12
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current structure is difficult to interconnect with existing optical communication systems, and most of them are one-dimensional bound, and the application of rainbow localization effect to optical fiber devices has not been reported.

Method used

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  • Two-dimensional integrated optical fiber online storage based on linear array multi-core optical fiber
  • Two-dimensional integrated optical fiber online storage based on linear array multi-core optical fiber
  • Two-dimensional integrated optical fiber online storage based on linear array multi-core optical fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The structure of a two-dimensional integrated optical fiber online storage based on a linear array of multi-core optical fibers is shown in Figure 1. It consists of a single-mode optical fiber 7 connected to an array of 7-core optical fibers 1, where the array of 7-core optical fibers 1 is processed into a side-polished optical fiber 2, namely Half of the fiber cladding 5 and fiber core are discarded, and the multiple fiber cores 3 exposed to the outside world form a protruding metal gradient grating structure 4 on the surface using optical micromachining technology. The seven fiber cores 3 have the same refractive index and the same The size of the fiber core is 4000 nanometers, and the gradient metal gratings on the surface of the seven fiber cores are all the same. The period Λ and the grid width t of the metal grating unit 5 are fixed values, which are 340 nanometers and 110 nanometers respectively. The metal grating unit 5 has a grid height of 5-785 nm and a total o...

Embodiment 2

[0037] The two-dimensional integrated optical fiber online storage structure based on a linear array of multi-core optical fibers is shown in Figures 1 and 4. It consists of a single-mode optical fiber 7 connected to an array of 5-core optical fibers 1, where the array of 5-core optical fibers 1 is processed into a side-polished optical fiber 2 , that is, both the fiber cladding 5 and the fiber core are half thrown away, and the multiple cores 3 exposed to the outside world are formed on the surface with an embedded metal gradient grating structure 4 using optical micromachining technology. The five cores have the same refractive index But different sizes, the core diameter is from 3000-4000 nanometers, the gradient metal gratings on the surface of the five cores are all the same, and the period Λ and the grid width t of the metal grating unit 5 are fixed values, which are 340 nanometers and 110 nanometers respectively. The metal grating unit 5 has a grid height of 5-785 nm and...

Embodiment 3

[0039] The two-dimensional integrated optical fiber online storage structure based on a linear array of multi-core optical fibers is shown in Figures 1 and 3. It consists of a single-mode optical fiber 7 connected to an array of 5-core optical fibers 1, where the array of 5-core optical fibers 1 is processed into a side-polished optical fiber 2 , that is, both the fiber cladding 5 and the fiber core are half thrown away, and the multiple cores 3 exposed to the outside world are formed on the surface with an embedded metal gradient grating structure 4 using optical micromachining technology. The five cores have the same refractive index With the same size, the core diameter is 4000 nanometers, the period Λ of the gradient metal gratings on the surface of the five cores and the grid width t of the metal grating unit 5 are fixed values, which are 340 nanometers and 110 nanometers respectively. But metal grating height gradients vary. The coupling between the arrayed multi-core op...

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Abstract

The invention provides a two-dimensional integrated optical fiber online storage based on a linear array multi-core optical fiber. The two-dimensional integrated optical fiber online storage is formed by connecting a single-mode optical fiber (7) with one section of array multi-core side-throwing optical fiber (2); and metal gradient grating structures (4) are formed on the surfaces of a plurality of naked fiber cores (3) by utilizing an optical micro-processing technology. The principle applied by the invention is based on a rainbow local effect, namely, a chromatic dispersion effect of the gradient grating is used for resonantly limiting plasmons with different wavelengths into different space positions; and light with different wavelengths can be stopped into two-dimensional space positions with different optical fiber side-throwing planes, so that the online two-dimensional storage of optical signals from visible light to optical signals of infrared bands can be realized. The device has the advantages of small volume, simple structure and high integration degree, can easily realize full-optical-fiber integration and has an important application on the optical fiber online storage field.

Description

technical field [0001] The invention relates to an optical fiber online storage, in particular to a two-dimensional integrated optical fiber online storage based on a linear array multi-core optical fiber, which is mainly used as a filter in optical storage and communication. Background technique [0002] Surface Plasmon Polaritons (SPPs) are a kind of coherent resonance formed by the interaction between an external electromagnetic field and free electrons on the metal surface, which has a huge local field enhancement effect. It can overcome the diffraction limit and generate many novel optical phenomena, such as negative refraction, ultra-high resolution imaging, transmission enhancement, etc. These complex phenomena may herald new principles, new theories, and new technologies. When the metal surface structure is changed, the properties of surface plasmons, dispersion relations, excitation modes, coupling effects, etc. will all have significant changes. Active manipulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C13/00
Inventor 关春颖史金辉温耀武苑立波
Owner HARBIN ENG UNIV
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