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Simple and practical photon crystal optical fibre

A kind of photonic crystal fiber, practical technology, applied in the direction of cladding fiber, optical waveguide light guide, etc., can solve the problems of unreasonable, difficult practical application, complex periodic crystal structure, etc.

Inactive Publication Date: 2007-12-19
汪业衡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The photonic crystal fiber, which people place high hopes on, has a periodic crystal structure that is not only complex but also unreasonable, making it difficult for practical application

Method used

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  • Simple and practical photon crystal optical fibre

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Embodiment Construction

[0029] In Fig. 1, 1, 2, 3 and 4 respectively represent the central circular layering, the first ring layering, the second ring layering and the third ring layering of the optical fiber, and 5, 6, 7 and 8 represent respectively Radius a of the central circular layer, width H of the first annular layer 1 , the second annular layer width H 2 and the third annular layer width H 3 , n 0 denotes the maximum refractive index of the central circular layer, n 1 and n 2 Respectively represent the uniform refractive index of the first annular layer and the second annular layer, n c1 Indicates the uniform refractive index of the third annular layer and the inner cladding base material.

[0030] A simple and practical photonic crystal fiber involved in the present invention, within the wavelength range of 1300nm to 1625nm, the dispersion D is positive, and the maximum dispersion D max No more than 15ps / nm-km, effective area A eff Not less than 50μm 2 .

[0031] A simple and practi...

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Abstract

A photon crystal optical fiber is prepared as forming fiber core by central ring layer, the first ring layer, the second ring layer and the third ring layer; forming internal cladding by substrate material with air packing rate being greater than 65%; using pure SiO2 as fiber core material and SiO2 doped with F as material of internal cladding and three said ring layers, setting nominal external diameter of coating layer to be 125micro m and 85micro m.

Description

field of invention [0001] The invention relates to photonic crystal fibers, in particular to a series of simple and practical photonic crystal fibers. Background technique [0002] The terms involved in the present invention are firstly defined below, and the definitions conform to the practice in this field; the specific terms in this specification are explained by conventional terms. [0003] The radius of each layer of the optical fiber is measured in the unit μm, defined by the refractive index, and each specific layer has a first refractive index point and a last refractive index point. The radius from the fiber axis to the location of the first refractive index point is the inner radius of the layer; the radius from the fiber axis to the location of the last refractive index point is the outer radius of the layer. See delta-fiber radius distribution diagram, the radius of the central circular segment is measured from the fiber axis to the outer radius of the segment; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/02
Inventor 汪业衡
Owner 汪业衡