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Photonic crystal fiber preform and photonic crystal fiber manufactured using the same

A technology of photonic crystal fiber and preform, which is applied in the direction of cladding fiber, optical components, manufacturing tools, etc., and can solve the problems that photonic crystal fiber cannot be manufactured and its characteristics are limited.

Inactive Publication Date: 2005-02-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the photonic crystal fiber cannot be fabricated according to the originally intended design
Also, the material constituting the core wire of the photonic crystal fiber is limited in its characteristics

Method used

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  • Photonic crystal fiber preform and photonic crystal fiber manufactured using the same
  • Photonic crystal fiber preform and photonic crystal fiber manufactured using the same
  • Photonic crystal fiber preform and photonic crystal fiber manufactured using the same

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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Detailed descriptions of known functions and constructions contained herein will be omitted for clarity and conciseness.

[0025] Fig. 3 illustrates, by way of an illustrative and non-limiting example, a cross-sectional view of a photonic crystal fiber preform 100 according to a first preferred embodiment of the present invention.

[0026] The photonic crystal fiber preform 100 is made of a rod-shaped base 110 through which a plurality of holes are longitudinally formed in an optical lattice structure. Each of the holes has a circular cross section, and a diameter of each hole is smaller than that of the rod-shaped base 110 . The holes are uniformly separated from each other to form a hexagonal pattern, and are respectively filled with materials 120, 130 and 140 having at least two different refractive indices. The refractive index profile of t...

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Abstract

A photonic crystal fiber (PCF) preform, from which a photonic crystal fiber is manufactured, includes a rod-shaped substrate with holes longitudinally formed therethrough in a photonic lattice structure, and material layers having at least two different indices of refraction. The material layers are disposed in the holes, respectively. Distribution of index of refraction of the photonic crystal fiber preform is controlled by arrangement of the material layers. Consequently, an optical fiber with very low optical loss, very low optical nonlinearity and excellent transmission characteristics can be easily manufactured, and an optical fiber with various characteristics, differing depending upon the lattice structure, can be realized.

Description

technical field [0001] The present invention relates to a photonic crystal fiber (PCF) preform and a photonic crystal fiber fabricated using the preform. Background technique [0002] Photonic crystal fiber is a special kind of fiber. Ordinary single-mode optical fibers are made of a core material that includes glass and germanium or phosphorous. Photonic crystal fibers, on the other hand, are made of a single, solid and largely transparent material 1 (such as silica glass) and air holes 2 periodically spaced along the fiber, as in figure 1 shown. The difference in dielectric constant between the quartz glass material 1 and the periodically spaced air holes 2 forms a photonic band gap, which, like that of semiconductors, acts to prevent light from moving in a certain direction. In other words, light can pass through the photonic bandgap only if the light satisfies the conditions for it to pass through. [0003] Photonic crystal fibers have many important technical proper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/032C03B37/012G02B6/00G02B6/02
CPCG02B6/028C03B37/0122C03B2203/42G02B6/0238G02B6/02366G02B6/02357G02B6/00
Inventor 吴成国李载昊
Owner SAMSUNG ELECTRONICS CO LTD
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