JP3891327B2 - Optical fiber array component and method of connecting to optical component using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical fiber array component and a method for connecting to an optical component using the same.
[0002]
[Prior art]
In optical communication, an optical fiber is an indispensable component as an optical signal transmission medium, and plays a role as an interface for connecting optical components and the like. Such an optical fiber breaks when a sharp bend is applied, and transmission of an optical signal becomes impossible. Therefore, when connecting an optical fiber while bending it between optical components of a short distance, the optical fiber must be bent with a sufficient curvature so as not to be broken, resulting in an excessive length of the optical fiber. This will cause difficulties in handling.
[0003]
For this reason, conventionally, an optical fiber array component in which an optical fiber is bonded to an adhesive sheet coated with an adhesive and an excess length portion of the optical fiber is fixed is prepared in advance. This makes it possible to efficiently connect the optical fiber to the optical component.
[0004]
Specifically, for example, as shown in FIG. 5, an optical fiber array component in which a substrate 113 having a V-shaped or circular groove is respectively attached to the input / output end of an optical fiber 112 fixedly wired to an adhesive sheet 111. 110 is prepared in advance, and the optical fiber array component 110 is compared with the optical module 100 in which the optical waveguide 102, which is a pair of optical components connected to the single-core optical fiber components 103, is provided on an optical board (not shown). By connecting the substrates 113, the optical waveguides 102 of the optical module 100 can be easily connected.
[0005]
[Problems to be solved by the invention]
In the optical fiber array component 110 as described above, the length of the tape portion 112a of the optical fiber 112 protruding from the adhesive sheet 111 varies due to manufacturing errors, as shown in FIG. When connecting the 100 optical waveguides 102, it is necessary to connect the short optical fiber 112 while bending the long tape portion 112a. For this reason, when the said length varies greatly, the tape part 112a with the said long length must be curved greatly, and it will become impossible to connect.
[0006]
Therefore, the present invention provides an optical fiber array component that can always be easily connected to an optical component even when a manufacturing error occurs, and a method of connecting to an optical component using the same. Objective.
[0007]
[Means for Solving the Problems]
An optical fiber array component according to a first invention for solving the above-described problems includes an adhesive sheet having adhesiveness, an optical fiber fixed on the adhesive sheet, and an input / output end of the optical fiber. In an optical fiber array component having a connection member attached and connected to an optical component, a cut line is formed in the adhesive sheet along the optical fiber so that only a part or all of the adhesive sheet can be removed from the optical fiber. There is formed Rutotomoni, the optical fiber, characterized in that it is oriented to the adhesive sheet so as to pop the output end side from the said adhesive sheet while bending at necessary and sufficient curvature.
[0008]
An optical fiber array component according to a second invention is characterized in that, in the first invention, a cut line is further formed in the adhesive sheet in a direction crossing the optical fiber.
[0009]
An optical fiber array component according to a third aspect is characterized in that, in the first or second aspect, the cut line has a strip shape or a ridge shape.
[0011]
Optical fiber array component according fourth invention, in any one of the third invention the FIRST, that between the adhesive sheet and the connecting member of the optical fiber is formed into a tape Features.
[0012]
An optical fiber array component according to a fifth invention is characterized in that, in any one of the first to fourth inventions, the optical fiber meanders and is fixed to the adhesive sheet.
[0013]
An optical fiber array component according to a sixth invention is characterized in that, in any one of the first to fifth inventions, the optical fiber is a high NA optical fiber.
[0014]
A seventh invention is a method of connecting to an optical component using the optical fiber array component according to any one of the first to sixth inventions, wherein the adhesion of the optical fiber array component is The connecting member is connected to the optical component after at least a part of the pressure-sensitive adhesive sheet is peeled from the optical fiber along the cut line of the sheet.
[0015]
According to an eighth aspect of the present invention, there is provided an optical component connecting method according to the seventh aspect , wherein the optical component is an optical waveguide provided on a wiring board and connected to an optical fiber component.
[0016]
According to a ninth aspect of the present invention, there is provided a method for connecting an optical component according to the eighth aspect , wherein a part of the adhesive sheet is cut along the cut line so as to divide the adhesive sheet of the optical fiber array component into a plurality of parts. After peeling off from the optical fiber, the connecting member is connected to the optical waveguide, and the adhesive sheet divided into a plurality of parts is fixed on the wiring board.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of an optical fiber array component according to the present invention and a method for connecting to an optical component using the same will be described below, but the present invention is not limited to these embodiments.
[0018]
[First embodiment]
A first embodiment of an optical fiber array component according to the present invention and a method for connecting to an optical component using the same will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram of an optical fiber array component, and FIG. 2 is an explanatory diagram of a connection method with the optical component.
[0019]
As shown in FIG. 1, on the adhesive sheet 11 made of plastics such as polyimide, it is oriented so as to be curved with a necessary and sufficient curvature and to make the input / output end side protrude from the adhesive sheet 11. A plurality of optical fibers 12 are attached via an adhesive. The input / output end portions of the optical fiber 12 are aligned and fixed at predetermined intervals (250 μm pitch), respectively, to a substrate 13 which is a connecting member having a V-shaped or circular groove. A space between the adhesive sheet 11 of the optical fiber 12 and the substrate 13 is formed as a tape portion 12a.
[0020]
Further, the adhesive sheet 11 is formed with a cut line 11a, and the optical fiber 12 is bonded along the cut line 11a, and the adhesive sheet 11 is cut along the cut line 11a. It can be easily peeled off from the pressure-sensitive adhesive sheet 11.
[0021]
Such an optical fiber array component 10 is applied to an optical module 100 in which an optical waveguide 102, which is a pair of optical components connected to a single-core optical fiber component 103, as shown in FIG. When connecting to the optical fiber array component 10, the adhesive sheet 11 of the optical fiber array component 10 can be easily separated from the adhesive sheet 11 without breaking the optical fiber 12 by breaking along the cut line 11a. The optical fiber 12 can be freely wired to the optical module 100 without being constrained.
[0022]
That is, although the optical fiber 12 is easily handled, a cut line is formed along the optical fiber 12 in the adhesive sheet 11 that is not required when the optical fiber 12 is connected, so that the optical fiber 12 is connected when the optical fiber 12 is connected. The adhesive sheet 11 can be easily peeled from the fiber 12 without breaking the optical fiber 12.
[0023]
For this reason, even if the length of the tape portion 12a of the optical fiber 12 protruding from the adhesive sheet 11 is greatly varied due to the manufacturing error of the optical fiber array component 10, the long tape portion 12a is curved. Instead, all the substrates 13 can be connected to the optical waveguides 102 of the optical module 100, respectively.
[0024]
Therefore, according to such an optical fiber array component 10 and a method for connecting to an optical component using the same, the length of the tape portion 12a of the optical fiber 12 protruding from the adhesive sheet 11 varies greatly due to manufacturing errors. Even if it exists, the board | substrate 13 can always be connected to the optical waveguide 102 of the optical module 100 easily.
[0025]
In peeling off the adhesive sheet 11 and the optical fiber 12, for example, the optical fiber array component 10 is turned over so that the optical fiber 12 is positioned on the lower side and the adhesive sheet 11 is positioned on the upper side, and the cut line 11a It is possible to easily peel off the optical fiber 12 from the adhesive sheet 11 without breaking it.
[0026]
However, for example, the optical fiber array component 10 is oriented so that the optical fiber 12 is positioned on the upper side and the adhesive sheet 11 is positioned on the lower side, the tape portion 12a of the optical fiber 12 is gripped, and the optical fiber 12 is bonded. If the sheet 11 is simply peeled off, the boundary portion between the portion of the optical fiber 12 peeled off from the adhesive sheet 11 and the portion adhered to the adhesive sheet 11 is bent at an acute angle, so that the optical fiber 12 is broken. May end up.
[0027]
[Second embodiment]
A second embodiment of an optical fiber array component according to the present invention and a method for connecting to an optical component using the same will be described with reference to FIGS. FIG. 3 is a schematic configuration diagram of the optical fiber array component, and FIG. 4 is an explanatory diagram of a connection method with the optical component. However, the same parts as those of the first embodiment described above are denoted by the same reference numerals as those used in the description of the first embodiment, and the description thereof is omitted. To do.
[0028]
As shown in FIG. 3, the adhesive sheet 21 is curved with a necessary and sufficient curvature (bending radius: 10 mm) and a plurality of heights oriented so as to protrude the input / output end portion from the adhesive sheet 21. An NA optical fiber (optical fiber having a large relative refractive index difference between the core and the clad) 22 is attached via an adhesive. The high NA optical fiber 22 has a feature that the bending radius can be made smaller than that of the normal optical fiber 12 described in the first embodiment because the light confinement is strong.
[0029]
The input / output end side of the high NA optical fiber 22 protruding from the adhesive sheet 21 is formed as a tape portion 22a. One end side of a normal optical fiber tape 24 (mode field diameter: about 10 μm) is fusion-bonded or butt-connected to the input / output end portion of the high NA optical fiber 22 via a connection portion 25. The other ends of these optical fiber tapes 24 are aligned and fixed to the substrate 13 at predetermined intervals (250 μm pitch).
[0030]
Further, the adhesive sheet 21 is formed with cut lines 21 a along the optical fiber 22 and a plurality of cut lines 21 b along the radial direction of the optical fiber 22 in the vicinity of the bent portion of the optical fiber 22. The optical fiber 22 can be easily separated from the pressure-sensitive adhesive sheet 21 by separating the pressure-sensitive adhesive sheet 21 along the cut lines 21a and 21b.
[0031]
Such an optical fiber array component 20 is applied to an optical module 200 in which an optical waveguide 202 which is an optical component connected to a pair of single-core optical fiber components 103 as shown in FIG. In the case of connection to each other, for example, the adhesive sheet 21 of the optical fiber array component 20 is divided into a plurality (two in the present embodiment) of the adhesive sheet 21 along the cut lines 21a and 21b. By separating the portion, a part of the optical fiber 22 can be peeled off from the adhesive sheet 21 without breaking the high NA optical fiber 22, and wiring is performed with respect to the optical module 200 with a degree of freedom. Can do.
[0032]
That is, in the first embodiment described above, all the adhesive sheet 11 is removed from the optical fiber 12, but in this embodiment, only a part of the adhesive sheet 21 is removed from the high NA optical fiber 22. It was.
[0033]
Therefore, the optical fiber protruding from the adhesive sheet 21 due to a manufacturing error of the optical fiber array component 20 (particularly, an error generated when the high NA optical fiber 22 and the normal optical fiber 24 are fusion-bonded or butt-connected). Even if the lengths of the optical fibers 22 and 24 are greatly varied, the fixing sheet attached to the wiring board 101 of the optical module 200 so as not to bend the tape-like portions of the optical fibers 22 and 24 having a long length. By arranging and fixing a plurality of divided adhesive sheets 21 on 204, it is possible to easily connect all the substrates 13 of the optical fiber array component 20 to the optical waveguides 202 of the optical module 200, respectively.
[0034]
Therefore, according to the optical fiber array component 20 and the method of connecting the optical component using the optical fiber array component 20, as in the case of the first embodiment described above, it jumps out of the adhesive sheet 21 due to manufacturing errors. Even if the lengths of the optical fibers 22 and 24 are greatly varied, the substrate 13 can always be easily connected to the optical waveguide 202 of the optical module 200.
[0035]
In the present embodiment, as shown in FIGS. 3 and 4, the bent portion of the high NA optical fiber 22 of the optical fiber array component 20 is linearly fixed to the adhesive sheet 21. If the high NA optical fiber 22 is fixed to the adhesive sheet 21 so as to meander between the bent portions, the adhesive sheet 21 of the optical fiber array component 20 is divided along the cut lines 21a and 21b so as to be divided into a plurality of parts. Since the free length of the high NA optical fiber 22 when a part of the pressure-sensitive adhesive sheet 21 is cut can be further increased, it is possible to sufficiently cope with a case where the manufacturing error described above is larger. Can do.
[0036]
Moreover, in embodiment mentioned above, the cut lines 11a and 21a are formed in the adhesive sheets 11 and 21 along the optical fibers 12 and 22, or the optical fiber 22 of the adhesive sheet 21 is provided near the bent portion of the optical fiber 22. Although a plurality of the cut lines 21b are formed along the radial direction, for example, even if the cut lines are formed in a strip shape or a grid shape on the pressure-sensitive adhesive sheet, the same effect as that of the above-described embodiment can be obtained. .
[0037]
【The invention's effect】
An optical fiber array component according to a first invention includes an adhesive sheet having adhesiveness, an optical fiber fixed on the adhesive sheet, and a connection attached to an input / output end of the optical fiber and connected to the optical component in the optical fiber array component and a member, wire cut to the adhesive sheet along the optical fiber so as to be only partially or remove all of the adhesive sheet from the optical fiber is formed Rutotomoni, said optical fiber However, it is oriented on the pressure-sensitive adhesive sheet so as to bend with a necessary and sufficient curvature and to cause the input / output end side to protrude from the pressure-sensitive adhesive sheet. Can be easily peeled off from the pressure-sensitive adhesive sheet without breaking. For this reason, even if a production error or the like occurs, the connection member can be easily connected to the optical component. Further, it is possible to easily collect optical fibers that generate excess length.
[0038]
In the optical fiber array component according to the second invention, in the first invention, a cut line is further formed in the adhesive sheet in a direction crossing the optical fiber, so that the adhesive sheet is divided into a plurality of parts. By cutting off a part of the adhesive sheet along the cut line, a part of the optical fiber can be peeled from the adhesive sheet without breaking the optical fiber. For this reason, even if a production error or the like occurs, the connection member can be easily connected to the optical component.
[0039]
The optical fiber array component according to the third aspect of the invention is the first or second aspect of the invention, since the cut line has a strip shape or an eyelet shape, so that the effect of the first or second aspect of the invention is achieved. Can be easily obtained.
[0041]
Optical fiber array component according fourth invention, in any one of the third invention the FIRST, since between the adhesive sheet and the connecting member of the optical fiber is formed into a tape, A connection member can be easily attached to the input / output end side of the optical fiber.
[0042]
An optical fiber array component according to a fifth invention is the optical fiber array component according to any one of the first to fourth inventions, wherein the optical fiber meanders and is fixed to the adhesive sheet, so that the adhesive sheet is divided into a plurality of parts. Thus, the length of the optical fiber when the part of the pressure-sensitive adhesive sheet is cut along the cut line can be increased, and the connection member can be connected to the optical component even if the manufacturing error is large. Can be easily done.
[0043]
An optical fiber array component according to a sixth aspect of the present invention is the optical fiber array component according to any one of the first to fifth aspects, wherein the optical fiber is a high NA optical fiber, so that light can be strongly confined in the optical fiber, Since the bending radius of the optical fiber can be reduced, the length of the surplus length can be shortened, and the compactness can be achieved.
[0044]
A seventh invention is a method of connecting to an optical component using the optical fiber array component according to any one of the first to sixth inventions, wherein the adhesion of the optical fiber array component is Since the connection member is connected to the optical component after peeling at least a part of the adhesive sheet from the optical fiber along the cut line of the sheet, the optical fiber is easily peeled off without breaking the optical fiber. Therefore, the degree of freedom of connection of the optical fiber to the optical component can be increased. For this reason, even if a production error or the like occurs, the connection member can be easily connected to the optical component.
[0045]
According to an eighth aspect of the present invention, there is provided an optical component connecting method according to the seventh aspect , wherein the optical component is an optical waveguide provided on a wiring board and connected to an optical fiber component. The ease of connecting the members is significantly manifested.
[0046]
According to a ninth aspect of the present invention, there is provided a method for connecting an optical component according to the eighth aspect , wherein a part of the adhesive sheet is cut along the cut line so as to divide the adhesive sheet of the optical fiber array component into a plurality of parts. After peeling from the optical fiber, the connection member is connected to the optical waveguide, and the adhesive sheet divided into a plurality of parts is fixed on the wiring board, so when connecting the connection member to the optical component This facilitates the remarkably.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a first embodiment of an optical fiber array component according to the present invention.
FIG. 2 is an explanatory diagram of a connection method with an optical component using the optical fiber array component of FIG. 1;
FIG. 3 is a schematic configuration diagram of a second embodiment of an optical fiber array component according to the present invention.
4 is an explanatory diagram of a connection method with an optical component using the optical fiber array component of FIG. 3; FIG.
FIG. 5 is an explanatory diagram of a connection method with an optical component using a conventional optical fiber array component.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10, 20 Optical fiber array components 11, 21 Adhesive sheet 11a, 21a, 21b Cut line 12 Optical fiber 13 Substrate 22 High NA optical fiber 24 Optical fiber tape 25 Connection part 100, 200 Optical module 101 Wiring board 102, 202 Optical waveguide 103 Optical fiber component 204 fixing sheet

Claims (9)

An adhesive sheet having adhesiveness;
A plurality of optical fibers fixed on the adhesive sheet;
In an optical fiber array component comprising: a connection member attached to an input / output end of the optical fiber and connected to an optical component;
The light along the optical fiber so that it can remove only or all part of the adhesive sheet from the fiber line cut in the adhesive sheet is formed Rutotomoni,
The optical fiber array component, wherein the optical fiber is oriented on the pressure-sensitive adhesive sheet so as to bend with a necessary and sufficient curvature and to cause the input / output end side to protrude from the pressure-sensitive adhesive sheet . In claim 1,
An optical fiber array component , wherein a cut line is further formed in the adhesive sheet in a direction crossing the optical fiber. In claim 1 or 2,
The optical fiber array component, wherein the cut line has a strip shape or a ridge shape. In any one of Claim 1 to 3 ,
The optical fiber array component, wherein the optical fiber is formed in a tape shape between the adhesive sheet and the connection member. In any one of Claim 1-4 ,
The optical fiber array component, wherein the optical fiber is meandered and fixed to the adhesive sheet. In any one of Claim 1 to 5 ,
An optical fiber array component, wherein the optical fiber is a high NA optical fiber. A method of connecting to an optical component using the optical fiber array component according to any one of claims 1 to 6 ,
The connection member is connected to the optical component after at least a part of the adhesive sheet is peeled from the optical fiber along the cut line of the adhesive sheet of the optical fiber array component. Connection method with optical components. In claim 7 ,
The method for connecting to an optical component, wherein the optical component is an optical waveguide provided on a wiring board and connected to an optical fiber component. In claim 8 ,
After separating a part of the adhesive sheet from the optical fiber along the cut line so as to divide the adhesive sheet of the optical fiber array component into a plurality, the connecting member is connected to the optical waveguide, and a plurality of A method of connecting to an optical component, wherein the adhesive sheet divided into two parts is fixed on the wiring board.

Images