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Apparatus and method for fabricating optical fiber by spinning

An optical fiber and optical fiber drawing technology, which is applied in the field of devices for manufacturing optical fibers

Inactive Publication Date: 2007-12-26
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, based on the random positioning of the principal axes, only statistical trends in the PMDs are observable, and individual PMD measurements can vary considerably depending on the incident polarization and measurement conditions

Method used

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  • Apparatus and method for fabricating optical fiber by spinning
  • Apparatus and method for fabricating optical fiber by spinning
  • Apparatus and method for fabricating optical fiber by spinning

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Embodiment Construction

[0015] Referring to the accompanying drawings, preferred embodiments of the present invention will be described below. For purposes of clarity and simplicity, well-known functions and constructions are not described in detail so that they would obscure the invention in unnecessary detail.

[0016] Fig. 1 shows the structure of an apparatus 100 for manufacturing optical fibers by spinning according to an embodiment of the present invention. Referring to FIG. 1 , an optical fiber manufacturing apparatus 100 is composed of a furnace 110 , a coater 140 , a winch 150 , first and second wheels 160 and 170 , and a plurality of pulleys 181 to 184 .

[0017] The end of the optical fiber preform 120 is melted in the furnace 110 . The furnace 110 may be cylindrical. The optical fiber preform 120 is structurally identical to the optical fiber 130 drawn from the optical fiber preform 120 , but the optical fiber 120 has a larger diameter than the optical fiber 130 . In order to prevent o...

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PUM

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Abstract

A method and apparatus for fabricating an optical fiber by spinning are disclosed. In the optical fiber fabricating method, an end of an optical fiber preform is molten and an optical fiber is drawn from the molten preform end. The optical fiber is then coated and spun in a direction. A coating distortion is eliminated from the optical fiber by spinning the optical fiber in a different direction.

Description

technical field [0001] The present invention relates generally to optical fibers, and more particularly to an apparatus and method for making optical fibers. Background technique [0002] The interaction between the physical properties of the fiber and the polarization state of the light propagating in the fiber causes polarization mode dispersion (PMD). Due to the birefringence caused by the acyclic and asymmetric refraction of the core and the stress asymmetry during drawing, the polarization components propagate along the two polarization axes with different group velocities. The resulting DGD (Differential Group Delay) leads to pulse broadening. [0003] There are several ways to overcome PMD. One approach is to spin the fiber to reduce DGD through mode coupling. The main axis, where the polarization mode is set, is randomly positioned without any fixed direction. Therefore, when the light pulse is transmitted, the energy exchange leads to coupling. As a result, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B37/025C03B37/03C03C25/20G02B6/00C03B37/027C03B37/12G02B6/04
CPCC03B37/02745C03B37/032C03B2203/19C03B2203/36G02B6/04
Inventor 李载昊吴成国
Owner SAMSUNG ELECTRONICS CO LTD
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