TWI416187B - A structure body having a device at one end of a central hole thereof and the method for making the same - Google Patents

Abstract

The present invention relates to a structure body having a device at one end of a central hole thereof and the method for making the same. The method includes: (a) providing a structure body having an end portion, a central hole and a plurality of surrounding holes, wherein the central hole and the surrounding holes have a central opening and a plurality of surrounding openings on an end surface of the end portion; (b) forming a sealing material to seal the central opening and the surrounding openings; (c) removing part of the end portion of the structure body and part of the sealing material to form at least one slant, and remain prat of the sealing material at one end of the central hole; and (d) processing the remained prat of the sealing material at one end of the central hole to form a device. Whereby the device is formed at the end of the central hole. In addition, the structure body is easily fabricated, the repeatability is high and the cost is low.

Description

Structure body having one element at one end of central hole and manufacturing method thereof

The present invention relates to a structure having a hole and a method of processing the same, and more particularly to a structure having a component at one end of a center hole and a method of manufacturing the same.

At present, a method of forming a lens at the end of a microstructured fiber is mainly known as a hydrofluoric acid etching method, a laser processing method, and a fiber polishing method, as described below.

U.S. Patent No. 4,265,699 discloses the hydrofluoric acid etching method in which an end portion of an optical fiber is etched into a tapered structure by hydrofluoric acid, and then a fiber lens is formed on an end face of the optical fiber. The laser processing method is disclosed in U.S. Patent No. 4,710,605, which utilizes a computer to control a pulsed carbon dioxide (CO ₂ ) laser to process an end face of an optical fiber to form a fiber optic lens. The optical fiber grinding method is disclosed in US Pat.

All of the above three methods can only be applied to the fiber of the solid core, but not to the microstructure fiber of the hollow core (that is, the fiber core of the fiber is a central hole). Taking the hydrofluoric acid etching method as an example, since the hydrofluoric acid etching causes the structure of the microstructured fiber to collapse, the fiber lens cannot be fabricated on the microstructure fiber of the hollow fiber core. Taking the laser processing method as an example, since the inside of the microstructure fiber of the hollow core is composed of a hole and a ruthenium dioxide, it is not a uniform material, so unpredictable structural deformation is caused in the CO ₂ laser processing. Taking the fiber grinding method as an example, since the core of the microstructure fiber of the hollow core is air instead of cerium oxide, the fiber lens cannot be melted on the microstructure fiber of the hollow core.

Therefore, it is necessary to provide an innovative and progressive central body having a component at one end and a method of manufacturing the same to solve the above problems.

The present invention provides a method for manufacturing a structure having a component at one end of a center hole, comprising the steps of: (a) providing a structure having an end portion, a center hole, and a plurality of peripheral holes, the periphery The hole surrounds the central hole, the end portion has an end surface, the central hole and the peripheral holes respectively have a central opening and a plurality of peripheral openings on the end surface; (b) forming a sealing material to close the central opening And the peripheral opening; (c) removing a portion of the structure and a portion of the sealing material to form at least one slope to expose a portion of the peripheral holes, and leaving a portion of the sealing material at one end of the central hole; (d) forming a portion of the encapsulating material left at one end of the central opening to form an element.

An advantage of the present invention is that an element can be formed at one end of the central hole of the structure. The present invention is preferably applicable to a microstructured fiber, and a fiber lens can be fabricated on the hollow fiber core microstructure fiber to change the mode field diameter of the microstructure fiber, and to promote the microstructure fiber to the laser or the The modal matching effect of the microstructured fiber on another fiber improves the coupling efficiency. Moreover, the manufacturing process of the present invention is simple, highly reproducible and low in cost.

The invention further provides a structure body having an element at one end of the central hole, which comprises a central hole, a plurality of peripheral holes and an element. The middle The heart hole has one end. The peripheral holes surround the central hole. The component is located on the end of the central aperture.

Referring to Figures 1a to 1e, there is shown a schematic view showing a method of manufacturing a structure in which one end of a center hole of the present invention has an element. First, referring to FIG. 1a and FIG. 2, a structure 1 is provided, which includes, but is not limited to, a microstructured fiber. The structure 1 has an end portion 11, a center hole 12, and a plurality of peripheral holes 13. The central hole 12 and the peripheral holes 13 are distributed in the structure 1 and are parallel to each other and not connected to each other. The peripheral holes 13 surround the central hole 12. The end portion 11 has an end surface 111. The central hole 12 and the peripheral holes 13 have a central opening 121 and a plurality of peripheral openings 131 respectively on the end surface 111. The diameter of the central hole 12 is larger than the peripheral holes. 13 diameter. If the structure 1 is a microstructured fiber, the peripheral holes 13 are fiber-shell holes having a size of about 1 μm; the center hole 12 is a fiber-core hole having a size of about 5 to 20 μm. In this embodiment, the end surface 111 is circular, and the peripheral openings 131 are arranged in a plurality of concentric circles. However, in other applications, the end face 111 may be rectangular or hexagonal, and the peripheral openings 131 may be arranged in an array or arranged in a hexagon.

Preferably, the end surface 111 is formed by cutting or polishing the end portion 11 of the structural body 1 in advance to form the end surface 111.

Preferably, the structure 1 further has a solid portion 14 surrounding the peripheral holes 13.

Preferably, referring to FIG. 1b, part of the end portion 11 of the structure 1 is removed. The core portion 14 forms a slope 15 . In the present embodiment, the solid portion 14 of the end portion 11 of the structure 1 is ground to form a tapered shape.

Next, referring to FIG. 1c, a sealing material 16 is formed to close the central opening 121 and the peripheral openings 131. In the present embodiment, the end portion 11 is melted to form the sealing material 16 to close the central opening 121 and the peripheral openings 131. In the process, the firepower of the melt can be controlled to determine the extent of the closure material 16.

Next, referring to FIG. 1d, a portion of the end portion 11 of the structural body 1 and a portion of the sealing material 16 are removed to form at least one inclined surface 17 to expose a portion of the peripheral holes 13, and a portion of the sealing material 16 is left in the central hole 12. One end 122. In this embodiment, the end portion 11 of the structural body 1 and a portion of the sealing material 16 are ground to form a tapered shape to expose a portion of the peripheral holes 13 and the remaining portion of the sealing material 16 is in the central hole. 12 one end 122. The tapered shape can be a symmetrical or asymmetrical structure. In this embodiment, the tapered profile is a conical body (as shown in Figure 3). However, in other applications, the tapered profile is a tapered wedge (as shown in structure 1A of Figure 4) formed in the following manner.

First, a portion of the end portion 11 of the structural body 1 and a portion of the sealing material 16 are ground to form a conical body. Next, one of the side walls of the conical body is ground to form a flat first bevel 21 . Finally, one of the other side walls of the conical body is ground to form a flat third inclined surface 23, and the first inclined surface 21 and the third inclined surface 23 intersect at an intersection line 25 to form the tapered wedge body. The first inclined surface 21 and the third inclined surface 23 further have two other inclined surfaces (the second inclined surface 22 and the fourth inclined surface 24), the second inclined surface 22 and the fourth inclined surface The 24 series is a curved surface. Therefore, the inclined surface 17 of FIG. 1d may correspond to the first inclined surface 21, the second inclined surface 22, the third inclined surface 23 or the fourth inclined surface 24 in the structural body 1A of FIG.

Referring to Figure 1e, the portion of the closure material 16 remaining at one end 122 of the central aperture 12 forms an element 18. In the present embodiment, a portion of the sealing material 16 remaining at one end 122 of the central opening 12 is melted to form a dome-shaped lens, and the thermal power of the melting can be controlled during the melting process to determine the radius of curvature of the lens. . In this embodiment, since the tapered shape of the end portion 11 is a conical body (as shown in FIG. 3), the lens after the melting is previously viewed as a circular shape (as shown in FIG. 5). . However, in other applications, since the tapered profile is a tapered wedge (as shown in Figure 4), the lens after firing is previously viewed as an elliptical shape (as shown in Figure 6).

An advantage of the present invention is that an element 18 can be formed at one end 122 of the central bore 12 of the structure 1. The present invention is preferably applicable to a microstructured fiber, and a fiber lens can be fabricated on the hollow fiber core microstructure fiber to change the mode field diameter of the microstructure fiber, and to promote the microstructure fiber to the laser or the The modal matching effect of the microstructured fiber on another fiber improves the coupling efficiency. Moreover, the manufacturing process of the present invention is simple, highly reproducible and low in cost.

The invention further relates to a structure having an element at one end of a central bore. Referring to FIG. 1e and FIG. 5, respectively, a cross-sectional view and a perspective view of a structure body having one element at one end of the center hole of the present invention are shown. The structure 1 includes, but is not limited to, a microstructured fiber. The structure 1 includes a central hole 12, a plurality of peripheral holes 13 and an element 18. The center hole 12 and the like The peripheral holes 13 are distributed in the structure 1 and are parallel to each other and are not connected to each other. The diameter of the central holes 12 is larger than the diameter of the peripheral holes 13. In this embodiment, the structure 1 is a microstructured fiber, and the peripheral holes 13 are fiber-shell holes having a size of about 1 μm; the central hole 12 is a fiber-core hole, and the size thereof is about 5~20 μm. The element 18 is a lens.

The central bore 12 has an end 122. The peripheral holes 13 surround the central hole 12. The element 18 is located on the end 122 of the central bore 12. Preferably, the structure 1 further has a solid portion 14 surrounding the peripheral holes 13.

The structure 1 has an end portion 11 which is a tapered outer shape and has at least one slope 17. A portion of the peripheral holes 13 are exposed to the slope 17. In the present embodiment, the end portion 11 of the structural body 1 is a conical body. The element 18 was previously viewed as a circle.

In other applications, taking FIG. 6 as an example, the end portion 11 of the structure 1A is a tapered wedge. The side surface of the tapered wedge body has a first inclined surface 21, a second inclined surface 22, a third inclined surface 23 and a fourth inclined surface 24, wherein the first inclined surface 21 and the third inclined surface 23 are flat surfaces. The second inclined surface 22 and the fourth inclined surface 24 are all curved surfaces. The element 18 was previously viewed as an elliptical shape.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the scope of the present invention. The scope of the invention should be as set forth in the appended claims.

1‧‧‧ structure

1A‧‧‧ structure

11‧‧‧End

12‧‧‧ center hole

13‧‧‧External holes

14‧‧‧solid part

15‧‧‧Bevel

16‧‧‧Enclosed materials

17‧‧‧Bevel

18‧‧‧ components

21‧‧‧First slope

22‧‧‧Second slope

23‧‧‧ Third slope

24‧‧‧4th bevel

25‧‧ ‧ intersection line

111‧‧‧ end face

121‧‧‧Center opening

122‧‧‧One end of the center hole

131‧‧‧ peripheral openings

1a to 1e are schematic views showing a manufacturing method of a structure in which one end of a center hole of the present invention has an element; Fig. 2 is a bottom view showing Fig. 1a; and Fig. 3 is a perspective view showing a first embodiment of Fig. 1d, wherein the structure is The tapered shape of the end of the body is a conical body; FIG. 4 shows a perspective view of the second embodiment of FIG. 1d, wherein the tapered shape of the end of the structure is a tapered wedge; 5 is a perspective view showing the first embodiment of FIG. 1e, wherein the tapered shape of the end portion of the structure is a conical body; and FIG. 6 is a perspective view showing the second embodiment of FIG. 1e, wherein the structure The tapered shape of the end portion is a tapered wedge.

1‧‧‧ structure

11‧‧‧End

12‧‧‧ center hole

13‧‧‧External holes

14‧‧‧solid part

18‧‧‧ components

122‧‧‧One end of the center hole

Claims (22)

A manufacturing method of a structural body having a component at one end of a central hole, comprising the steps of: (a) providing a structural body having an end portion, a central hole, and a plurality of peripheral holes surrounding the peripheral hole a central hole having an end surface, the central hole and the peripheral holes respectively having a central opening and a plurality of peripheral openings on the end surface; (b) forming a sealing material to close the central opening and the periphery Opening (c) removing a portion of the structure and a portion of the sealing material to form at least one slope to expose a portion of the peripheral holes, and leaving a portion of the sealing material at one end of the central hole; and (d) The portion of the encapsulating material remaining at one end of the central aperture forms an element. The manufacturing method of claim 1, wherein the structural system in the step (a) is a microstructured optical fiber. The manufacturing method of claim 1, wherein the central hole and the peripheral holes in the step (a) are parallel to each other and not connected to each other. The manufacturing method of claim 1, wherein the peripheral openings in the step (a) are arranged in a plurality of turns. The manufacturing method of claim 1, wherein the diameter of the central hole in the step (a) is larger than the diameter of the peripheral holes. The manufacturing method of claim 1, wherein the step (a) further includes everything The step of the end of the structure to form the end face. The manufacturing method of claim 6, wherein the step of cutting is performed by cutting or grinding. The manufacturing method of claim 1, wherein the structure in the step (a) further has a solid portion, the solid portion surrounding the peripheral holes. The manufacturing method of claim 8, wherein the step (a) further comprises: (a1) removing a portion of the solid portion of the end portion of the structure to form a slope. The manufacturing method of claim 9, wherein the step (a1) is to polish a solid portion of the end portion of the structure to form a tapered shape. The manufacturing method of claim 1, wherein the step (b) is to melt the end portion to form a sealing material to close the central opening and the peripheral openings. The manufacturing method of claim 1, wherein the step (c) is to polish a portion of the structure and a portion of the sealing material to form a tapered shape to expose a portion of the peripheral holes, and the remaining portion of the sealing material is One end of the center hole. The manufacturing method of claim 12, wherein the step (c) is to grind a portion of the end portion of the structure and a portion of the sealing material to form a conical body. The manufacturing method of claim 12, wherein the step (c) comprises: (c1) grinding a portion of the structure and a portion of the sealing material to form a conical body; (c2) grinding one side wall of the conical body to Forming a straight first slope; and (c3) grinding the other side wall of the cone to form a straight third The inclined surface, the first inclined surface and the third inclined surface intersect at an intersection line. The manufacturing method of claim 1, wherein the step (d) is to melt a portion of the sealing material remaining at one end of the center hole to form a lens. A structural body having an element at one end of the central hole, comprising: a central hole having one end; a plurality of peripheral holes surrounding the central hole; an element located at the end of the central hole; and one end The portion is a tapered outer shape having at least one inclined surface, and some of the peripheral holes are exposed to the inclined surface. The structure of claim 16, wherein the structural system is a microstructured optical fiber, and the component is a lens. The structure of claim 16, wherein the end of the structure is a conical body. The structure of claim 16, wherein the end of the structure is a tapered wedge body, and the side wall of the tapered wedge body has a first inclined surface, a second inclined surface, a third inclined surface and a first The four inclined surfaces, wherein the first inclined surface and the third inclined surface are flat surfaces, and the second inclined surface and the fourth inclined surface are both curved surfaces. The structure of claim 16, wherein the central hole and the peripheral holes are parallel to each other and not connected to each other. The structure of claim 16, wherein the diameter of the central aperture is greater than the diameter of the peripheral apertures. The structure of claim 16, wherein the structure further has a solid portion surrounding the peripheral holes.