Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flexible optical waveguide, method for producing the same, and epoxy resin composition for flexible optical waveguide

A technology of epoxy resin and optical waveguide, which is applied in the directions of optical waveguide, light guide, optics, etc., can solve the problems of complicated preparation process and increased preparation cost, and achieve the effects of good heat resistance, good flexibility and good adhesion

Inactive Publication Date: 2009-09-09
NIPPON SHOKUBAI CO LTD
View PDF19 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in such an optoelectronic hybrid flexible module, due to the need to additionally prepare epoxy resin films as the lower cladding layer, central layer and upper cladding layer of the optical waveguide, these epoxy resin films are coated with copper on polyimide After vacuum lamination on the foil substrate, curing is carried out, and then the base film is peeled off, so there are problems in the production process and high production cost.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible optical waveguide, method for producing the same, and epoxy resin composition for flexible optical waveguide
  • Flexible optical waveguide, method for producing the same, and epoxy resin composition for flexible optical waveguide
  • Flexible optical waveguide, method for producing the same, and epoxy resin composition for flexible optical waveguide

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0144] "Preparation method of flexible optical waveguide"

[0145] The production method of the present invention is characterized in that the production method includes the steps of forming a lower cover layer, forming a center layer on the lower cover layer, and forming a layer between the lower cover layer and the center layer so as to embed the center layer. In the process of forming the upper cladding layer, the epoxy film constituting at least one of the lower cladding layer, the central layer and the upper cladding layer is formed using an epoxy resin composition containing Polyglycidyl compounds of polyalkylene glycol chains and at least two glycidyl groups.

[0146] In this production method, the lower cover layer is formed from the resin composition for the lower cover layer, the center layer is formed from the resin composition for the center layer, and the upper cover layer is formed from the resin composition for the upper cover layer. form. At least one of the ...

Embodiment 1

[0208] First, on a silicon substrate, an epoxy resin composition (1) for a cover layer was spin-coated, and an exposure machine (product name: MA-60F, manufactured by Mikasa Co., Ltd.) using a high-pressure mercury lamp as a light source (wavelength: 365 nm) was used. ), at an illuminance of 10mW / cm 2 Under UV irradiation for 15 minutes, the exposure energy is 9J / cm 2 , forming a lower covering layer formed of an epoxy film with a thickness of 50 μm. The refractive index of the lower cladding layer was measured to be 1.53 at a wavelength of 830 nm using a prism coupler (for example, product name SPA-4000, manufactured by SAIRON TECHNOLOGY, INC.).

[0209] Spin-coat the epoxy resin composition (1) for the center layer on the lower cover layer obtained, and use a high-pressure mercury lamp as a light source (wavelength of 365 nm) exposure machine (product name is MA-60F, ミカサ Co., Ltd.), the illuminance is 10mW / cm 2 Under UV irradiation for 15 minutes, the exposure energy is 9J...

Embodiment 2

[0214] Except that the epoxy resin composition (2) for the covering layer was used instead of the epoxy resin composition (1) for the covering layer when forming the upper covering layer, in the same manner as in Example 1, a film having The flexible optical waveguide (2) of the formed lower cladding layer, central layer and upper cladding layer.

[0215] When the waveguide loss of the obtained flexible optical waveguide (2) was measured without bending, it was 0.13 dB / cm. In addition, based on the test method for polymer waveguides (7.1.1 Bending test JPCA-PE02-05-01S) published by the Japan Print Circuit Industry Association, using the obtained flexible optical waveguide (2), when bending 90 degrees with a radius of 10 mm The waveguide loss was the same value as the waveguide loss measured without bending, and no increase in waveguide loss was confirmed. In addition, when the waveguide loss is measured after being bent at 90 degrees with a radius of 10 mm and returned to th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a flexible optical waveguide composed of an epoxy film wherein at least one of a lower cladding layer, a core layer and an upper cladding layer is formed by using an epoxy resin composition containing a polyglycidyl compound having a polyalkylene glycol chain and at least two glycidyl groups. Also disclosed is a flexible optical waveguide composed of an epoxy film having a glass transition temperature (Tg) of not more than 100 DEG C. Further disclosed are a method for producing such a flexible optical waveguide and an epoxy resin composition for flexible optical waveguides.

Description

technical field [0001] The invention relates to a flexible optical waveguide, a preparation method thereof, and an epoxy resin composition for the flexible optical waveguide. Background technique [0002] With the practical use of optical communication systems, attention has been drawn to technologies related to optical waveguides as their basic components. The so-called optical waveguide typically has an embedded structure in which a central layer with a high refractive index is surrounded by a cladding layer with a low refractive index, or a central layer with a high refractive index is formed on a lower cladding layer with a low refractive index, and the The upper cladding layer has a ridge-type structure as an air layer; the light incident to the optical waveguide is reflected at the interface between the central layer and the cladding layer, or at the interface between the central layer and the air layer, and simultaneously passes through the central layer spread. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/12G02B6/13
CPCG02B2006/121G02B6/138G02B6/1221
Inventor 佐藤信平田尻浩三松井洋子牧野朋未
Owner NIPPON SHOKUBAI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com