CN112848282B - Organic optical waveguide preparation method based on embedded 3D printing - Google Patents
Organic optical waveguide preparation method based on embedded 3D printing Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12035—Materials
- G02B2006/12069—Organic material
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12166—Manufacturing methods
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Abstract
The invention discloses an organic optical waveguide preparation method based on embedded 3D printing. The traditional organic optical waveguide preparation technology is difficult to realize an optical waveguide structure with any three-dimensional space orientation or has extremely low printing speed. The invention connects the needle head with the charging barrel containing polymer waveguide material through the conduit, the needle head is fixed on the xyz triaxial linkage printing equipment; placing a vessel containing an embedded matrix material which is transparent to ultraviolet light on a platform of the xyz triaxial linkage printing equipment, and enabling the embedded matrix material to be in a gel state; driving a needle head to be immersed into the embedded gelatinous matrix material to move according to a preset track by an xyz three-axis linkage printing device, and simultaneously controlling the polymer waveguide material in the charging barrel to flow out of the needle head at a preset flow rate, so as to print a polymer waveguide material line in the embedded gelatinous matrix material; and finally, curing the polymer waveguide material through ultraviolet irradiation to obtain the organic optical waveguide. The invention can realize express printing of the complex three-dimensional optical waveguide.
Description
Technical Field
The invention relates to the technical field of organic optical waveguide preparation, in particular to an organic optical waveguide preparation method based on embedded 3D printing.
Background
During the past decades, the development of electrical communication has revolutionized the speed of computing and communication, greatly revolutionizing our lifestyle. However, as society develops and technology advances, people put higher demands on data transmission and processing speed, and electrical communication cannot adapt to the increasing data transmission speed, such as the telecommunication industry demands wider information transmission bandwidth. To overcome these problems, we have had to go through a new light-based computing and communications revolution. Optical communication has a larger information capacity, lower transmission loss, and a better immune effect to crosstalk and electromagnetic interference, is lighter and has a smaller size than electrical communication. An optical waveguide is a basic element in an optical circuit, and is equivalent to a wire in an electric circuit, and plays a role in transmitting light and communicating. The optical waveguide mainly utilizes the total reflection principle of light to constrain light inside the optical waveguide so as to realize the directional transmission of the light. Compared with inorganic optical waveguide materials, organic optical waveguide materials have the advantages of easy processing, low cost, good performance and the like, and are widely applied to the fields of communication, medical treatment, sensing and the like.
The traditional organic optical waveguide preparation technology can be mainly divided into the following technologies:
1. a photolithography method, in which a polymer waveguide material that can be directly photocured is directly patterned by using a mask, and then an uncured waveguide material is removed; for polymer waveguide materials which cannot be directly photocured, a polymer waveguide film is firstly manufactured on a substrate, photoresist is patterned through a mask, then the polymer waveguide is patterned through etching, and finally the photoresist is removed.
2. The mold method comprises the steps of manufacturing a transparent mold which is complementary to an actual optical waveguide structure, guiding the polymer waveguide material by utilizing capillary force and filling gaps, or directly indenting a substrate coated with the polymer waveguide material by utilizing the mold, and finally curing the polymer waveguide and taking down the mold.
3. The Mosquito method includes embedding a needle containing a light-curable core polymer waveguide material into a liquid cladding polymer material, leaving the core polymer waveguide material in the cladding by extruding the core material while moving the needle, and finally curing by ultraviolet irradiation.
4. Two-photon printing, which is to polymerize and solidify the light-curable polymer waveguide material point by point, and can realize the optical waveguide structure with any shape on a small scale.
The former two methods belong to the category of plane processing, and are difficult to realize optical waveguide structures with arbitrary orientation in three-dimensional space and integration of optical waveguide networks with complex three-dimensional structures. The third method can only realize a simple planar optical waveguide structure, because the cladding material for supporting the core layer waveguide is liquid, the structure is easily damaged due to the disturbance of a needle; and the third method requires ensuring that the density of the cladding material is close to that of the optical waveguide material, otherwise the optical waveguide material will sink and deform; further, in the third method, diffusion between the cladding material and the optical waveguide material inevitably occurs, and a graded-index waveguide is produced. The fourth two-photon printing method, although it can in principle realize an optical waveguide structure with arbitrary orientation in three-dimensional space, is limited by the small working width of the two-photon printer and the extremely slow printing speed of point-by-point scanning, and is difficult to realize industrialization.
The existing direct-writing 3D printing technology can only print materials with self-supporting property, but the existing organic waveguide glue is low in viscosity and modulus, and direct printing is difficult to realize.
Disclosure of Invention
The invention aims to provide a novel method for preparing an organic optical waveguide based on embedded 3D printing, aiming at the defects of the prior art. The method is suitable for 3D printing and forming of the light-curable organic material, but is not limited to the light waveguide material.
The invention specifically comprises the following steps: firstly, connecting a needle head with a liquid outlet of a material barrel containing an ultraviolet light-curable polymer waveguide material through a guide tube, and fixing the needle head on an xyz triaxial linkage printing device; then, a vessel containing an embedded matrix material (which can play a role of supporting the polymer waveguide material) which can transmit ultraviolet light is placed on a platform of the xyz triaxial linkage printing equipment, and the embedded matrix material is in a gel state; then, controlling an xyz three-axis linkage printing device through a computer to drive a needle head to be immersed into the embedded matrix material in the gel state, driving the needle head to move according to a preset track, and simultaneously controlling the polymer waveguide material in the cylinder to flow out of the needle head at a preset flow rate (controlled by pressure distributed by an air compressor), thereby printing a line of the polymer waveguide material in the embedded matrix material in the gel state; because the embedded matrix material has good support, a three-dimensional optical waveguide structure with any orientation can be realized. And after printing is finished, curing the polymer waveguide material through ultraviolet irradiation to finally obtain the organic optical waveguide.
Preferably, the embedded matrix material is pluronic F-127 aqueous solution or carbomer aqueous solution.
More preferably, the mass fraction of the pluronic F-127 in the aqueous solution of the pluronic F-127 is 20 to 25 percent.
More preferably, the mass fraction of carbomer in the aqueous solution of carbomer is 0.5%.
More preferably, the needle is immersed in the embedded matrix material and then contacted with the top surface of the horizontally arranged substrate, the polymer waveguide material is printed with a circuit of the polymer waveguide material on the substrate when flowing out from the needle, and after the polymer waveguide material is cured by ultraviolet irradiation after printing is finished, the embedded matrix material is removed, and finally the organic optical waveguide taking the substrate and air as cladding materials is obtained.
More preferably, if the embedded matrix material is a pluronic F-127 aqueous solution, the process of removing the embedded matrix material is specifically: soaking a substrate with a solidified polymer waveguide material in clear water to dilute and dissolve the embedded matrix material in the water; and secondly, repeating the step I for a plurality of times, and then evaporating the moisture on the substrate with the solidified polymer waveguide material. If the embedded matrix material is carbomer aqueous solution, the process for removing the embedded matrix material specifically comprises the following steps: adding hydrochloric acid on the substrate with the solidified polymer waveguide material, adjusting the pH value to acidity, liquefying carbomer gel, repeatedly washing with clear water, and finally evaporating the water on the substrate with the solidified polymer waveguide material.
More preferably, the substrate is a silicon wafer with an oxide layer.
Preferably, the barrel, the needle and the catheter are made of ultraviolet light-proof materials.
Preferably, the process of controlling the flow of the polymer waveguide material from the needle in the cartridge is embodied as follows: by setting the air pressure value of the air compressor and controlling the switch of the air compressor to pressurize the inner cavity of the charging barrel through the computer, the polymer waveguide material flows out of the needle head at a preset flow rate under a preset pressure.
The invention has the following advantages:
1. the optical waveguide is printed in the embedded matrix material in a gel state, the gel-like embedded matrix material is slightly influenced by the disturbance of the needle, the optical waveguide structure is not easily damaged by the disturbance of the needle, and the optical waveguide material is not easily sunk, deformed or diffused in the gel-like embedded matrix material; therefore, the invention is insensitive to the rheological properties of the optical waveguide material such as density, viscosity, modulus and the like, can realize the molding of the optical waveguide material with larger viscosity and modulus range, realize higher printing speed, the printing speed can exceed 5mm/s, and the refractive index of the printed optical waveguide is uniform.
2. The invention can adjust the size of the optical waveguide by adjusting parameters such as the size of the needle head, the pressure of the inner cavity of the charging barrel, the flow of the optical waveguide material and the like, thereby realizing an optical waveguide structure with extremely small size (the diameter of the optical waveguide can reach 1 um); the invention can realize optical waveguide in any direction in space by setting the preset track of the needle head, and the geometric arrangement structure of the optical waveguide can be adjusted at will, thereby realizing a complex three-dimensional optical waveguide integrated network.
3. The invention can realize the connection between silicon-based waveguides, the connection between the waveguides and optical fibers, and the like, and the section of the optical waveguide printed on the silicon substrate is in a shape of a major arc bow (one side contacting with the substrate is flat, and the other side is a circular arc (major arc).
Drawings
FIG. 1 is a flow chart of either embodiment 4 or embodiment 5 of the present invention;
FIG. 2 is a schematic diagram of a plurality of optical waveguides printed side-by-side on a substrate according to the present invention;
FIG. 3 is a schematic view of one of the optical waveguides of FIG. 2;
FIG. 4 is a schematic diagram of a plurality of optical waveguides printed on a substrate in a mesh pattern according to the present invention;
fig. 5 is a schematic view of two of the optical waveguides of fig. 4 arranged crosswise.
Detailed Description
The invention is further illustrated by the following figures and examples, which should not be construed as limiting the scope of the invention.
A preparation method of an organic optical waveguide based on embedded 3D printing specifically comprises the following steps:
example 1: the OrmoClear optical waveguides were printed in an embedded host material.
Firstly, designing an optical waveguide structure to be printed through a computer, compiling a preset track of a needle head and control information of an IO interface (an air compressor and the IO interface of the computer) controlled by air pressure into a Gcode language program which can be recognized by a 3D printer (namely, xyz three-axis linkage printing equipment); then, Ormoclear optical waveguide material (produced by German Micro Resist Technology GmbH company) is poured into a cylinder for preventing ultraviolet light under the condition of keeping out of the sun, and a needle head is connected with a liquid outlet of the cylinder through a conduit and is fixed on a 3D printer; embedding a matrix material: the method comprises the following steps of pouring 20% mass fraction aqueous solution (stored in a refrigerator and liquid at low temperature) of Pluronic F-127 into a transparent quartz glass square cylinder, placing the quartz glass square cylinder on a platform of a 3D printer, and waiting for the Pluronic F-127 aqueous solution to return to room temperature (gel state at room temperature) to obtain Pluronic F-127 gel; then, controlling a 3D printer by a computer to drive a needle head to be immersed into the Pluronic F-127 gel, and operating a Gcode language program to print; in the printing process, the computer controls the 3D printer to drive the needle head to move according to a preset track, and simultaneously controls the air compressor to pressurize the inner cavity of the charging barrel to enable the inner cavity of the charging barrel to reach a preset pressure, so that the Ormoclear optical waveguide material flows out of the needle head at a preset flow rate under the preset pressure; and after printing is finished, placing the quartz glass square cylinder under an ultraviolet lamp for irradiation, and curing the Ormoclear optical waveguide material to obtain the Ormoclear optical waveguide.
Example 2: the NOA65 optical waveguides were printed in an embedded matrix material.
Firstly, designing an optical waveguide structure to be printed through a computer, compiling a preset track of a needle head and control information of an IO interface (an air compressor and the IO interface of the computer) controlled by air pressure into a Gcode language program which can be recognized by a 3D printer (namely, xyz three-axis linkage printing equipment); then, the NOA65 optical waveguide material (manufactured by Norland company, USA) is poured into a cylinder which can prevent ultraviolet light under the condition of keeping out of the light, and a needle is connected with a liquid outlet of the cylinder through a conduit and is fixed on a 3D printer; embedding a matrix material: the method comprises the following steps of pouring an aqueous solution (stored in a refrigerator and in a liquid state at a low temperature) with the mass fraction of the Pluronic F-127 into a transparent quartz glass square cylinder, placing the quartz glass square cylinder on a platform of a 3D printer, and waiting for the Pluronic F-127 aqueous solution to return to the room temperature (in a gel state at the room temperature) to obtain Pluronic F-127 gel; then, controlling a 3D printer by a computer to drive a needle head to be immersed into the Pluronic F-127 gel, and operating a Gcode language program to print; in the printing process, the computer controls the 3D printer to drive the needle head to move according to a preset track, and simultaneously controls the air compressor to pressurize the inner cavity of the material barrel to enable the inner cavity of the material barrel to reach a preset pressure, so that the NOA65 optical waveguide material flows out of the needle head at a preset flow rate under the preset pressure; and after printing is finished, the quartz glass square cylinder is placed under an ultraviolet lamp for irradiation, so that the NOA65 optical waveguide material is solidified, and the NOA65 optical waveguide is obtained.
Example 3: PMMA (plexiglas) optical waveguides are printed in an embedded matrix material.
Firstly, designing an optical waveguide structure to be printed through a computer, compiling a preset track of a needle head and control information of an IO interface (an air compressor and the IO interface of the computer) controlled by air pressure into a Gcode language program which can be recognized by a 3D printer (namely, xyz three-axis linkage printing equipment); then, pouring the prepared PMMA optical waveguide material (which is formed by mixing 35 mass percent of 12 ten thousand molecular weight polymethyl methacrylate, 64.5 mass percent of MMA (acrylic resin) and 0.5 mass percent of photoinitiator) into a material barrel for resisting ultraviolet light under the condition of keeping out of the sun, connecting a needle head with a liquid outlet of the material barrel through a conduit, and fixing the needle head on a 3D printer; embedding a matrix material: mixing 0.5% carbomer (Carbopol ETD 2020) and 99.5% water to obtain water solution (liquid), pouring into transparent quartz glass square jar, adding NaOH to adjust pH to neutral, and vacuum removing bubbles to obtain carbomer gel; then, placing the quartz glass square cylinder on a platform of a 3D printer, controlling the 3D printer through a computer to drive a needle head to be immersed into carbomer gel, and running a Gcode language program to print; in the printing process, the computer controls the 3D printer to drive the needle head to move according to a preset track, and simultaneously controls the air compressor to pressurize the inner cavity of the material barrel to enable the inner cavity of the material barrel to reach a preset pressure, so that the PMMA optical waveguide material flows out of the needle head at a preset flow rate under the preset pressure; after printing is finished, the quartz glass square cylinder is placed under an ultraviolet lamp for irradiation, and the PMMA optical waveguide material is cured, so that the PMMA optical waveguide is obtained.
Example 4: an OrmoClear optical waveguide is printed on a substrate.
As shown in fig. 1, firstly, designing an optical waveguide structure to be printed by a computer, and compiling a preset track of a pinhead and control information of an IO interface (an air compressor and an IO interface of the computer) controlled by air pressure into a geocode language program recognizable by a 3D printer (i.e. an xyz three-axis linkage printing device); then, Ormoclear optical waveguide material (produced by German Micro Resist Technology GmbH company) is poured into a cylinder for preventing ultraviolet light under the condition of keeping out of the sun, and a needle head is connected with a liquid outlet of the cylinder through a conduit and is fixed on a 3D printer; embedding a matrix material: the method comprises the following steps of pouring 20.5 mass percent of aqueous solution (liquid at low temperature) of the pluronic F-127 into a transparent quartz glass square cylinder, and horizontally placing a substrate (preferably a silicon wafer with an oxide layer and a low surface refractive index) in the pluronic F-127 aqueous solution; then, placing the quartz glass square cylinder on a platform of a 3D printer, waiting for the aqueous solution of the pluronic F-127 to return to room temperature (in a gel state at room temperature) to obtain pluronic F-127 gel, and controlling the 3D printer through a computer to drive a needle head to be immersed into the pluronic F-127 gel to be in contact with the top surface of the substrate; then, running a Gcode language program to print; in the printing process, the computer controls the 3D printer to drive the needle head to move according to a preset track, and simultaneously controls the air compressor to pressurize the inner cavity of the charging barrel to enable the inner cavity of the charging barrel to reach a preset pressure, so that the Ormoclear optical waveguide material flows out of the needle head at a preset flow rate under the preset pressure; after printing is finished, placing the quartz glass square cylinder under an ultraviolet lamp for irradiation, and curing the Ormoclear optical waveguide material; after curing, the substrate with the cured Ormoclear optical waveguide material is soaked in clear water to dilute the Pluronic F-127 gel into water; repeatedly diluting the pluronic F-127 gel by using clear water for several times, and evaporating the water on the Ormoclear optical waveguide material to obtain the Ormoclear optical waveguide with the substrate.
Example 5: an EpoCore optical waveguide is printed on a substrate.
As shown in fig. 1, firstly, designing an optical waveguide structure to be printed by a computer, and compiling a preset track of a pinhead and control information of an IO interface (an air compressor and an IO interface of the computer) controlled by air pressure into a geocode language program recognizable by a 3D printer (i.e. an xyz three-axis linkage printing device); then, an EpoCore optical waveguide material (EpoCore 50, produced by Micro Resist Technology GmbH, germany) was poured into a cylinder protected from light into which ultraviolet light was emitted, and a needle was connected to a liquid outlet of the cylinder through a tube and fixed to a 3D printer; embedding a matrix material: the method comprises the following steps of pouring an aqueous solution (stored in a refrigerator and in a liquid state at low temperature) with the mass fraction of the Plannic F-127 of 21% into a transparent quartz glass square cylinder, and horizontally placing a substrate (preferably a silicon wafer with an oxide layer and a low surface refractive index) into the Plannic F-127 aqueous solution; then, placing the quartz glass square cylinder on a platform of a 3D printer, waiting for the aqueous solution of the pluronic F-127 to return to room temperature (in a gel state at room temperature) to obtain pluronic F-127 gel, and controlling the 3D printer through a computer to drive a needle head to be immersed into the pluronic F-127 gel to be in contact with the top surface of the substrate; then, running a Gcode language program to print; in the printing process, the computer controls the 3D printer to drive the needle head to move according to a preset track, and simultaneously controls the air compressor to pressurize the inner cavity of the material barrel to enable the inner cavity of the material barrel to reach a preset pressure, so that the EpoCore optical waveguide material flows out of the needle head at a certain flow rate under the preset pressure; after printing is finished, placing the quartz glass square cylinder under an ultraviolet lamp for irradiation, and curing the EpoCore optical waveguide material; after curing, soaking the substrate with the cured EpoCore optical waveguide material in clear water to dilute the Pluronic F-127 gel into water; repeatedly diluting the pluronic F-127 gel by using clear water for several times, and evaporating the water on the EpoCore optical waveguide material to obtain the EpoCore optical waveguide with the substrate.
Example 4 Ormoclean optical waveguides of different arrangements can be printed on the substrate according to different preset tracks of the needles, and example 5 EpoCore optical waveguides of different arrangements can be printed on the substrate according to different preset tracks of the needles. A number of OrmoClear or EpoCore waveguides arranged side by side are printed on a substrate as shown in fig. 2, and fig. 3 is a schematic view of the shape of one of the several OrmoClear or EpoCore waveguides arranged side by side. A plurality of OrmoClear optical waveguides or EpoCore optical waveguides are printed on a substrate in a mesh pattern, as shown in fig. 4, and fig. 5 is two schematic diagrams of intersections of the plurality of OrmoClear optical waveguides or EpoCore optical waveguides in the mesh pattern.
Claims (8)
1. An organic optical waveguide preparation method based on embedded 3D printing is characterized in that: the method comprises the following specific steps: firstly, connecting a needle head with a liquid outlet of a material barrel containing an ultraviolet light-curable polymer waveguide material through a guide tube, and fixing the needle head on an xyz triaxial linkage printing device; then, a vessel containing an embedded matrix material which is transparent to ultraviolet light is placed on a platform of the xyz triaxial linkage printing equipment, and the embedded matrix material is in a gel state; then, controlling an xyz three-axis linkage printing device through a computer to drive a needle head to be immersed into the embedded matrix material in the gel state, driving the needle head to move according to a preset track, and simultaneously controlling the polymer waveguide material in the cylinder to flow out of the needle head at a preset flow rate, so as to print a line of the polymer waveguide material in the embedded matrix material in the gel state; after printing is finished, curing the polymer waveguide material through ultraviolet irradiation to finally obtain the organic optical waveguide;
after the needle head is immersed into the embedded matrix material, the needle head is contacted with the top surface of the substrate which is horizontally arranged, when the polymer waveguide material flows out from the needle head, a circuit of the polymer waveguide material is printed on the substrate, after the polymer waveguide material is solidified through ultraviolet irradiation after printing is finished, the embedded matrix material is removed, and finally the organic optical waveguide taking the substrate and air as cladding materials is obtained.
2. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 1, wherein the method comprises the following steps: the embedded matrix material is pluronic F-127 aqueous solution or carbomer aqueous solution.
3. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 2, wherein the method comprises the following steps: the mass fraction of the pluronic F-127 in the pluronic F-127 aqueous solution is 20-25%.
4. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 2, wherein the method comprises the following steps: the mass fraction of the carbomer in the carbomer aqueous solution is 0.5%.
5. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 2, 3 or 4, wherein: if the embedded matrix material is a pluronic F-127 aqueous solution, the process of removing the embedded matrix material specifically comprises the following steps: soaking a substrate with a solidified polymer waveguide material in clear water to dilute and dissolve the embedded matrix material in the water; repeating the step one for a plurality of times, and then evaporating the moisture on the substrate with the solidified polymer waveguide material; if the embedded matrix material is carbomer aqueous solution, the process for removing the embedded matrix material specifically comprises the following steps: adding hydrochloric acid on the substrate with the solidified polymer waveguide material, adjusting the pH value to acidity, liquefying carbomer gel, repeatedly washing with clear water, and finally evaporating the water on the substrate with the solidified polymer waveguide material.
6. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 1, wherein the method comprises the following steps: the substrate is a silicon wafer with an oxide layer.
7. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 1, 2, 3 or 4, wherein: the charging barrel, the needle head and the catheter are all made of ultraviolet-proof materials.
8. The method for preparing the organic optical waveguide based on embedded 3D printing according to claim 1, 2, 3 or 4, wherein: the process of controlling the polymer waveguide material in the barrel to flow out of the needle head is as follows: by setting the air pressure value of the air compressor and controlling the switch of the air compressor to pressurize the inner cavity of the charging barrel through the computer, the polymer waveguide material flows out of the needle head at a preset flow rate under a preset pressure.
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| CN202110017241.7A CN112848282B (en) | 2021-01-07 | 2021-01-07 | Organic optical waveguide preparation method based on embedded 3D printing |
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| CN202110017241.7A CN112848282B (en) | 2021-01-07 | 2021-01-07 | Organic optical waveguide preparation method based on embedded 3D printing |
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| CN112848282B true CN112848282B (en) | 2021-11-26 |
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| US5534101A (en) * | 1994-03-02 | 1996-07-09 | Telecommunication Research Laboratories | Method and apparatus for making optical components by direct dispensing of curable liquid |
| US6703188B1 (en) * | 1999-03-29 | 2004-03-09 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method of fabricating optical waveguide structure |
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| CN105346089A (en) * | 2015-12-02 | 2016-02-24 | 上海理工大学 | Method for manufacturing variable refractive index optical waveguide based on 3D printing |
| CA3015906A1 (en) * | 2016-02-25 | 2017-08-31 | Cornell University | Waveguides for use in sensors or displays |
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| CN109270629A (en) * | 2018-11-27 | 2019-01-25 | 苏州席正通信科技有限公司 | A kind of three-dimensional optical waveguide of 3D printing |
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