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Optical fiber coating system and coated optical fiber

一种光纤涂层、体系的技术，应用在玻璃光纤、包层光纤、光学等方向，能够解决微弯曲损失提供足够的保护等问题，达到改善易加工性、高断裂韧度、低微弯曲损失的效果

Active Publication Date: 2006-08-30
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coating systems used in conventional coated optical fibers do not provide adequate protection against microbending losses

Method used

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  • Optical fiber coating system and coated optical fiber
  • Optical fiber coating system and coated optical fiber
  • Optical fiber coating system and coated optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Primary curable compositions 1-7 were formulated with a high speed mixer in a suitable vessel heated to 70°C with a heating wire or heating mantle. In all cases, the components were weighed into containers using a scale and mixed until the solid components were completely dissolved and the mixture appeared homogeneous. The curable composition is formulated so that the sum of the amounts of oligomer, monomer and photoinitiator is 100% by weight; other additives such as antioxidant are added to the total mixture in units of parts per 100 parts. BR3741 is an oligomer available from Bomar Specialties. PHOTOMER 4003 is a monomer available from Cognis. TONE M-100 is a monomer available from Dow Chemical. IRGACURE 819 and IRGACURE 184 are photoinitiators available from Ciba Specialty Chemical. (3-propenyloxypropyl)trimethoxysilane is an adhesion promoter available from Gelest. IRGANOX 1035 is an antioxidant available from Ciba. Pentaerythritol tetrakis(3-mercaptopropionat...

Embodiment 2

[0113] Secondary curable compositions 8-9 were formulated in jacketed beakers heated to 70°C using a high speed mixer. In all cases, the components were weighed into jacketed beakers using a balance and mixed until the solid components were completely dissolved and the mixture appeared homogeneous. The curable composition is formulated so that the sum of the amounts of oligomer, monomer and photoinitiator is 100% by weight; other additives such as antioxidant are added to the total mixture in units of parts per 100 parts. KWS 4131 is an oligomer available from Bomar Specialties. PHOTOMER 4028 and PHOTOMER 3016 are monomers available from Cognis. LUCIRIN TPO is a photoinitiator available from BASF. The components used to formulate secondary curable compositions 8-9 are detailed in Table 4 below.

[0114] secondary curable composition

components

8

9

KWS 4131 (weight%)

10

10

PHOTOMER 4028 (weight%)

82

82

...

Embodiment 3

[0118] By coating a large effective area optical fiber (LEAF) with a coating system of the present invention comprising a primary coating 1 and a secondary coating 8  , purchased from Corning Corporation) to prepare coated optical fibers 1 and 2. The results of the scalable drum microbending test are given in Table 6. LEAF coated with conventional coating system  Optical fibers typically have values ​​greater than 1.4 dB / km / % strain in the scalable drum test and at 1550 nm.

[0119]

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Abstract

The present invention relates to optical fiber coating systems capable of providing a high degree of microbend protection to an optical fiber, and an optical fiber coated therewith. According to one embodiment of the invention, an optical fiber coating system includes a primary coating and a secondary coating, wherein when a ribbon having twelve large effective area optical fibers coated with the coating system is subjected to the ribbon optical performance test at a wavelength of 1550 nm, the average change in attenuation is about 0.020 dB / km or less.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of and priority to US Provisional Patent Application 60 / 488,511, filed July 18,2003. technical field [0003] The present invention relates generally to optical fibers and, more particularly, to coating systems for optical fibers and coated optical fibers. Background technique [0004] Optical fiber plays an increasingly important role in the field of communication, and it is often used to replace existing copper wires. This trend has significant implications for all areas of communication, dramatically increasing the amount of data transmitted. The use of optical fiber, especially in subways and fiber-to-the-home applications, is expected to grow further as local fiber optic networks drive the transmission of ever-increasing volumes of audio, video, and data signals to residential and commercial users. Additionally, the use of fiber optics in home and commercial premises networks...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44C03C25/10
CPCC03C25/1065G02B6/4482G02B6/4403G02B6/02395G02B6/443G02B6/00G02B6/02
Inventor M·D·法比安E·J·富克斯H·-H·盛M·J·温宁汉姆
Owner CORNING INC
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