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Composite spinneret pack for preparing flap optical fiber

A technology of composite spinneret components and optical fibers, which is applied in the direction of optical components, light guides, optics, etc., and can solve problems such as inability to manufacture

Inactive Publication Date: 2008-05-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a composite spinneret assembly for preparing petal-shaped optical fibers, which has solved the defects that cannot be prepared in the prior art

Method used

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  • Composite spinneret pack for preparing flap optical fiber
  • Composite spinneret pack for preparing flap optical fiber

Examples

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Embodiment 1

[0029] As shown in Figure 3, a composite spinneret assembly for preparing petal-shaped optical fibers includes a distribution plate A, a distribution B and a spinneret plate, and the A component channel 1 and the outer ring of the distribution plate A are provided on the inner ring There is a component B channel 2 on the top, the center of the distribution plate B is provided with a component A shaping hole 3 and the outer ring is provided with a component B channel 4, and the center of the spinneret is provided with a guide hole 5. The guide hole 5 is facing the A component shaping hole 3 in the center of the distribution plate B, and the bottom end of the guide hole is provided with a spinneret microhole, and the B component channel 4 is facing the B component channel 2 There are 24 described A component channels 1, B component channels 2 and B component channels 4, which are arranged in a circular array on distribution plates A and B; the length of the shaping hole 3 in the ...

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Abstract

The invention relates to a compound spinning pack of preparing a valvular fiber, which comprises a distribution plate A, a distribution plate B and a spinneret, wherein the inner ring of the distribution plate A is equipped with an A component channel (1), the outer ring is equipped with a B component channel (2), the center of the distribution plate B is equipped with an A component moulding hole (3), and the outer ring is equipped with a B component channel (4). The center of the spinneret is equipped with a guide hole (5), the guide hole (5) is opposite to the A component moulding hole (3) which is arranged on the center of the distribution plate B, the end bottom of the guide hole is equipped with spinning microporouses, and the B component channel (4) is opposite to the B component channel (2). The fiber which is prepared by the invention comprises two components, a designed valvular fiber section shape is formed on the sections of the two components, the two components mutually contact and are not separated, thereby the performance of the fiber is better than a natural fiber.

Description

technical field [0001] The invention relates to a composite spinning assembly for preparing composite fibers, in particular to a composite spinning assembly for preparing petal-shaped optical fibers. Background technique [0002] Kin Seng Chiang of the City University of Hong Kong proposed a petal-shaped optical fiber (Segmented Cladding Fiber, SCF, Figure 1) with a petal pattern distribution on the cross section in 2001, in which the core is composed of a high refractive index material, and the high refractive index material and low refractive Rate material "flaps" alternately. The leakage loss of the high-order mode in the petal-shaped fiber is large, while the loss of the fundamental mode is small, so that single-mode transmission can be realized. [0003] A.Yeung from the University of New Wales in Australia developed 4-lobed and 8-lobed optical fibers by casting method. At present, only uniform optical fibers with a length of tens of centimeters can be obtained. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/28G02B6/00G02B1/00
Inventor 余木火段菊兰滕翠青韩克清袁象恺
Owner DONGHUA UNIV
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