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
CN101529293AInactive Publication Date: 2009-09-09NIPPON SHOKUBAI CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NIPPON SHOKUBAI CO LTD
Publication Date
2009-09-09
Estimated Expiration
Not applicable · inactive patent

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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.
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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

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