Method for manufacturing optical waveguide by using azobenzene polymer

An azo polymer and optical waveguide technology, applied in the direction of optical waveguide and light guide, can solve the problems of narrow range of refractive index change, can not meet the requirements of waveguide device refractive index gradient change, not too much, etc., to achieve low price, The effect of eliminating reactive ion etching and avoiding the use of photoresist

Inactive Publication Date: 2010-06-30
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of material called azopolymer was developed during this patented research program. It allows for easier production of high-quality small-diameter fibers made from these materials compared to traditional methods like sintered glass or plasma spun yarn. Additionally, it provides flexibility when processing certain types of fiber shapes without requiring expensive equipment such as chemical vapor deposition (CVD). Overall, this technology makes possible efficient ways to create complex structures containing multiple layers of nanoparticles within one molecule.

Problems solved by technology

Technologies described in this patent involve developing new materials called phthoferritins which exhibit better optoelectronics characteristics than previously known organosilicate compositions like Liquids® (LIQUIDS™) due to their ability to absorb energy from laser radiation without changing the refraction indexes during excitation. These materials may find applications in various industries including electronic components, sensors, communication tools, and displays.

Method used

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  • Method for manufacturing optical waveguide by using azobenzene polymer
  • Method for manufacturing optical waveguide by using azobenzene polymer
  • Method for manufacturing optical waveguide by using azobenzene polymer

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preparation example Construction

[0030] The method that the present invention proposes to make optical waveguide with azo polymer, the structural representation of the prepared optical waveguide is as follows figure 1 Shown, specific preparation method comprises the following steps:

[0031] (1) cleaning the substrate 1;

[0032] (2) Mix the epoxy resin prepolymer, isocyanate and N,N-dimethylformamide to obtain a first mixed solution. The mixing mass ratio is: epoxy resin prepolymer:isocyanate:N,N-dimethylformamide=1:0.3-0.9:3-9. The first mixed solution is spin-coated on the above-mentioned cleaned substrate, and dried at a temperature of 60-180° C. for 6-12 hours to obtain a lower cladding layer 2 with a thickness of 1.0-5.0 microns, wherein the epoxy resin The molecular structural formula of the prepolymer is:

[0033]

[0034] (3) Mixing the azo polymer, isocyanate and N,N-dimethylformamide to obtain a second mixed solution. The mixing mass ratio is: azo polymer: isocyanate: N, N-dimethylformamide ...

Embodiment 1

[0050] (1) Select silicon as the substrate material, use acetone, ethanol, and water for 15 minutes to sonicate, repeat twice, and finally blow dry with N2 gas for later use;

[0051] (2) Mix the epoxy resin prepolymer, isocyanate and N,N-dimethylformamide to obtain a first mixed solution. The mixing mass ratio is: epoxy resin prepolymer:isocyanate:N,N-dimethylformamide=1:0.6:6.4. The first mixed solution was spin-coated on the above-mentioned cleaned substrate, and dried at 60° C. for 12 hours to obtain a lower cladding layer with a thickness of 3.0 μm, wherein the molecular structural formula of the epoxy resin prepolymer is :

[0052]

[0053] (3) Azopolymer, isocyanate and N, N-dimethylformamide are mixed to obtain the second mixed solution, and the mass ratio of mixing is: azopolymer: isocyanate: N, N-dimethylformamide Amide=1:0.25:12, the second mixed solution is spin-coated on the above-mentioned lower cladding layer, and dried at 60°C for 12 hours to obtain a core...

Embodiment 2

[0060] (1) Select quartz glass as the substrate material, use acetone, ethanol, and water to sonicate for 15 minutes, repeat twice, and finally dry it with N2 gas for later use;

[0061] (2) Mix the epoxy resin prepolymer, isocyanate and N,N-dimethylformamide to obtain a first mixed solution. The mixing mass ratio is: epoxy resin prepolymer:isocyanate:N,N-dimethylformamide=1:0.6:6.4. The first mixed solution was spin-coated on the above-mentioned cleaned substrate, and dried at 60° C. for 12 hours to obtain a lower cladding layer with a thickness of 3.0 μm, wherein the molecular structural formula of the epoxy resin prepolymer is :

[0062]

[0063] (3) Azopolymer, isocyanate and N, N-dimethylformamide are mixed to obtain the second mixed solution, and the mass ratio of mixing is: azopolymer: isocyanate: N, N-dimethylformamide Amide=1:0.25:12, the second mixed solution is spin-coated on the above-mentioned lower cladding layer, and dried at 60°C for 12 hours to obtain a c...

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Abstract

The invention relates to a method for manufacturing optical waveguide by using an azobenzene polymer, and belongs to the technical field of optical device manufacturing. The method comprises the following steps: firstly, cleaning an underlayer; mixing an epoxy resin prepolymer, isocyanate and N,N-Dimethylformamide so as to obtain first blended solution, then spin-coating the first blended solution on the cleaned underlayer to obtain a lower cladding; mixing the azobenzene polymer, isocyanate and N,N-Dimethylformamide so as to obtain second blended solution, then spin-coating the second blended solution on the lower cladding to obtain a sandwich layer; placing a mask on the sandwich layer, irradiating the mask with a laser so as to form the optical waveguide; and coating a curing glue on an upper cladding of the optical waveguide. The method has the advantages of simple manufacturing process, easily controlled quality and low product cost.

Description

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Claims

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Application Information

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Owner TSINGHUA UNIV
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