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Method for manufacturing optical waveguide and connecting structure of optical device

A technology of optical devices and connection structures, applied in the direction of optical waveguide light guides, coupling of optical waveguides, optical components, etc., can solve problems such as cumbersome work, increasing the amount of developing steps, and limitations

Inactive Publication Date: 2004-08-04
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method involves technical limitations and an increased amount of development steps
Thus, in this case too, the method requires very tedious work

Method used

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  • Method for manufacturing optical waveguide and connecting structure of optical device
  • Method for manufacturing optical waveguide and connecting structure of optical device
  • Method for manufacturing optical waveguide and connecting structure of optical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] 1) Preparation of resin composition

[0107] Put 16.0g (0.05mol) 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl and 152.8g N,N-dimethylacetamide into a 500ml separable flask, The solution was prepared under a nitrogen atmosphere.

[0108] While stirring, 22.2 g (0.05 mol) of 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride was added to the solution, and the mixture was stirred at room temperature for 24 hours to prepare a polyamic acid solution .

[0109] Add 1.91g of 1-ethyl-3,5-dimethoxycarbonyl-4-(2-nitrophenyl)-1,4-dihydropyridine to the polyamic acid solution (equivalent to every 100 parts of polyamic acid The solid counts as 5 parts) to prepare the resin composition in the form of a solution.

[0110] 2) Optical fiber connection

[0111] A V-groove substrate of synthetic silica as shown in Fig. 2 (groove depth: 20 mm; groove angle: 60°) was produced. A single-mode glass optical fiber (core diameter: 50.0 μm) with an outer diameter of 125 μm (core diameter...

Embodiment 2

[0138] 1) Preparation of resin composition

[0139] Put 16.0g (0.05mol) 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl and 152.8g N,N-dimethylacetamide into a 500ml separable flask, The solution was prepared under a nitrogen atmosphere. While stirring, 22.2 g (0.05 mol) of 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride was added to the solution, and the mixture was stirred at room temperature for 24 hours to prepare a polyamic acid solution .

[0140] The polyamic acid solution was diluted with N,N-dimethylacetamide to a solid content of 10%. The pyridine and acetic anhydride of 1.2 times the same amount as the carboxylic acid of the polyamic acid were added to the diluted solution to chemically imidize the polyamic acid. The precipitated polyimide was washed successively with a large amount of water and isopropanol, collected by filtration, and dried at 65° C. under reduced pressure to obtain a white sheet-like polyimide.

[0141] The obtained polyimide was dissolved...

Embodiment 3

[0155] In the same manner as in Example 1, two multimode glass optical fibers were optically connected. The optical loss measured in the same manner as in Example 1 is as follows.

[0156] Distance between glass fibers Connection loss

[0157] 100μm 0.3dB

[0158] 500μm 0.5dB

[0159] 1000μm 1.1dB

[0160] 1500μm 1.7dB

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Abstract

The invention provides a process of manufacturing an optical waveguide for optically connecting a plurality of optical devices, comprising the steps of: disposing a resin composition between two or more optical devices, the resin composition comprising a resin and a 1,4-dihydropyridine derivative, forming an optical path through the resin composition between the optical devices by light having a wavelength capable of inducing a structural change in the 1,4-dihydropyridine derivative, and removing the 1,4-dihydropyridine derivative from the resulting resin composition. Also disclosed is a connection structure obtained by the process.

Description

Invention field [0001] The invention relates to a method of manufacturing an optical waveguide and a connection structure of an optical device. More specifically, the present invention relates to a method of forming an optical waveguide for optically connecting two or more optical devices and a structure for optically connecting optical devices through the optical waveguide. Background of the invention [0002] As far as the method of optically connecting multiple optical devices is concerned, the known method includes incorporating a substance that can change the refractive index when irradiated with light of a certain range of wavelengths (hereinafter referred to as " Optical refractive index material") and the step of irradiating the optical refractive index material from at least one optical device with light having a wavelength that can cause the material to change its refractive index, or a photosensitive material is embedded in a part or the entire interval between the opt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/26G02B6/138G02B6/38G02B6/42
CPCG02B6/4212G02B6/138G02B6/3801F24C7/082
Inventor 尾江邦重山下兼一宗和范望月周内藤龙介
Owner NITTO DENKO CORP
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