JPH0618744A - Optical branching unit and waveguide type optical coupler module used in this unit - Google Patents

Abstract

(57) [Abstract] [Purpose] Used in an optical line access device in the optical communication field, and an optical branching unit that adds an optical add / drop function to the optical line and enables line testing or monitoring, and this unit Provided is a waveguide type optical coupler module. [Structure] The optical coupler 22 of the optical branching unit is modularized so that it can be spliced in an unaligned manner, and the optical fiber is the tape core wire 19, whereby miniaturization, easy assembly, and economic efficiency can be obtained. it can.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in an optical line access device in the field of optical communication, and has an optical add / drop function added to an optical line so that the line can be tested or monitored. The present invention relates to a waveguide type optical coupler module used in.

[0002]

2. Description of the Related Art A conventional optical line test system (Japanese Patent Laid-Open No. Hei 2-1632) has an internal optical fiber cable 9 and an external optical fiber cable 1 as shown in FIG.
The optical branching unit 5 is provided between the communication optical fibers 11 which are between 0.
The optical branch unit 5 has a communication port 1,
2 and test ports 3 and 4, and these test ports 3 and 4
Optical insertion and branching are performed at. Test port 3,4
A 1 × N optical switch 13 for selecting a test core wire is connected to the optical fiber tester 14, an optical pulse tester 14 for measuring a loss or a failure point of the optical fiber 11, a control device 15, and a test result display device 16 are provided. ing. An optical filter 17 for removing test light is arranged in the optical fiber 11 on the optical transmission terminal 12 side.

In such a system, in the test, first, a test core wire is selected from N pieces by the 1 × N optical switch 13 and the optical branching unit 5 in the selected core wire is selected.
Select test port 3 of. And the optical pulse tester 1
The test light of No. 4 is inserted into the outside optical fiber cable 10 through the optical branching unit 5, and the level of the backscattered light is received, so that the communication optical fiber 11 is received.
It is possible to measure the position of loss and failure point.

The optical fiber cables 9 and 10 shown in FIG. 16 accommodate several tens or more of optical fibers. The outside cable 10 is a multi-core optical fiber, and the inside cable 9 is a single-core optical fiber. Each fiber is used. Termination of the out-of-office cable 10 and connection with the in-office cable 9 is usually called MDF (main wiring rack), and the optical branching unit is housed in this MDF.

FIG. 17 shows an example of a conventional optical branching unit (Actual No. 2-258408), which corresponds to the communication ports 1 and 2 and the test ports 3 and 4 of the optical branching unit 5 shown in FIG. Optical fiber 1f, 2 of communication port
f, the optical fiber 3f of the optical insertion port 3, and the optical fiber 4f of the optical branching port 4 are individually connected to the optical coupler unit 7, and the optical fiber 2f is connected to the single-core ferrule 6 and the optical fiber 1f. , 3f and the like indicate the optical branching unit 5 connected to the multi-core ferrule 8.

FIG. 18 shows an example of an optical waveguide component in the conventional connection between an optical fiber and an optical waveguide (Japanese Patent Laid-Open No. 4-340).
No. 507). As shown in the figure, in the optical waveguide component 27, the optical waveguide 31 is provided and the optical waveguide 31 is provided on the optical waveguide substrate 28 on which the positioning guide 28b is formed. On the other hand, this optical waveguide substrate 28
Optical fiber alignment groove 29b for positioning the optical fiber 11 to be joined with the optical waveguide 31
And an optical fiber alignment substrate 29 on which a guide 29d for positioning the optical waveguide substrate 28 is formed, and the guides 28b and 29d of the optical waveguide substrate 28 and the optical fiber alignment substrate 29 are fitted together. The optical waveguide 31
And a fixed substrate 30 on which a guide receiver 30c for aligning the optical fiber 11 is formed to constitute an optical waveguide component.

[0007]

By the way, in each of the above-mentioned conventional optical branching units, the optical couplers constituting the two sets of optical coupler units 7 in FIG. 17 are actually cylindrical members of several mm. As shown in FIG. 17, not only 4 or 8 cores but also a multi-branch branch unit is being formed recently, so that the apparatus is becoming larger. Also,
Since the optical fibers 1f, 2f, 3f, and 4f are individually connected to each optical coupler, the number of manufacturing processes is large, and an extremely troublesome process is required as the number of optical fibers increases.

Further, in the conventional connection between the optical fiber and the optical waveguide shown in FIG. 18, the optical fiber 11 is accommodated in the optical fiber alignment groove 29b of the optical fiber alignment substrate 29, and at the same time the optical waveguide 31 of the optical waveguide substrate 28 is connected. There is a problem that it cannot be fixed by the fixed substrate 30 unless it abuts.
At that time, the optical fiber 11 may be slightly deviated in the length direction. Further, there is a problem that as the number of optical fibers 11 increases, it becomes more difficult to assemble the optical fibers 11 on the optical fiber alignment substrate 29.

In view of the above problems, the present invention provides an optical branching unit in which the size of the optical coupler is reduced to reduce the excess length processing and the connection of optical fibers is simplified, and a waveguide type optical coupler module used in the optical branching unit. The purpose is to do.

[0010]

The structure of the optical branching unit according to the present invention, which achieves the above-mentioned object, is used in an optical line access device for inserting a test light into the optical line when performing an optical line test. Two 2N in the optical branch unit
It is equipped with a waveguide type optical coupler module that can be connected to a multi-core connector module for accommodating cores and is integrated into N chips, while an N-core accommodating multi-core connector corresponding to one communication port and two test ports A multi-core connector for receiving 2N cores, and a multi-core connector for N cores corresponding to the other communication port corresponding to the communication port for one of the above, the multi-core connector for accommodating N cores and the multi-core connector for accommodating 2N cores Among them, the N cores corresponding to one of the test ports are alternately accommodated by a tape core wire and connected to the one multicore connector module for accommodating the 2N cores, and the N-core single-core optical connector and the 2N-core accommodating type The other 2 described above in which the remaining N cores corresponding to the other test port of the multi-core connector are accommodated alternately with the tape core wire.
It is basically connected to a multi-core connector module accommodating N cores.

The structure of the waveguide type optical coupler module used in the optical branching unit according to the present invention is such that a plurality of optical fibers arranged in parallel on the SiO ₂ layer formed on the silicon substrate with a predetermined interval. And an optical waveguide substrate having at least two guide grooves for positioning formed in parallel with each other with a predetermined distance from the optical waveguide, and fitted in the guide groove. A guide pin fixing member that has a plurality of guide pins, the guide pins projecting from both end surfaces of the optical waveguide substrate into the guide groove, and are fixedly bonded; and the guide pin when the guide pins are fitted in the guide groove. A multi-fiber optical connector that holds an optical fiber that is positioned in a predetermined position so as to be optically coupled to the waveguide, and a clip that holds the optical coupling state between the optical waveguide and the multi-fiber optical connector. Characterized by comprising.

In the above-mentioned waveguide type optical coupler module, the heights of the axial centers of the optical waveguide and the axial centers of the guide pins on both end surfaces of the optical waveguide substrate are aligned with each other, and they are arranged on the same straight line. Good.

In the optical waveguide substrate of the waveguide type optical coupler module, a space may be provided between the upper reference surface of the optical waveguide and the guide pin fixing member.

In the optical waveguide substrate of the waveguide type optical coupler module, the end face of the optical fiber and the light input / output end face of the optical waveguide may be obliquely polished at the same angle θ.

An optical filter for removing the test light may be mounted on the communication line of the waveguide type optical coupler module.

[0016]

[Function] The optical coupler module which is made into a chip without using the conventional optical coupler unit is connected to the connector, and the connector is connected by the tape core wire, so that the optical coupler can be downsized and the extra length can be processed. It can be simplified, and the manufacturing process has become extremely simple due to integration and tape formation.

In the waveguide type optical coupler module, guide pins are fitted into positioning guide grooves formed in the optical waveguide substrate for positioning, and the guide pins are projected from both end faces of the optical waveguide substrate. The guide pin fixing member is used for adhesive fixing. Next, the optical waveguide substrate and the multi-core optical connector are fitted by the guide pins provided on the optical waveguide substrate. With the guide pin fitted to the optical waveguide substrate and the multi-fiber optical connector, the optical waveguide provided on the optical waveguide substrate and the multi-fiber optical connector held by the multi-fiber optical connector are aligned and clipped. The optical coupling state is maintained. As a result, it is possible to join the multi-core optical waveguide and the optical fiber without alignment.

[0018]

Embodiments of the present invention will be described below with reference to FIGS.

First, an embodiment of the optical branching unit of the present invention will be described with reference to FIGS.

[Embodiment 1] FIG. 1 shows an optical branching unit of the first embodiment, 18A is a multi-core connector for accommodating four cores corresponding to a communication port, 18B is a multi-core connector for accommodating eight cores corresponding to a test port, 18C and 18D are multi-core connector modules for accommodating eight cores connected to the waveguide type optical coupler module 22 in which the optical coupler unit 7 is arranged, 19 is a four-core tape core wire,
Reference numeral 20 is a single-core connector corresponding to the communication port, 21 is an extra length tray, and 23 is a connecting pin for aligning the optical coupler module 22 with the multi-core connector modules 18C and 18D. Here, the waveguide type optical coupler module 22 is a chip in which four cores are integrated, and multicore connector modules 18C and 18 are provided for this module 22.
D can be connected.

FIG. 2 shows the optical coupler module 22 shown in FIG.
And the connector modules 18C and 18D are connected to each other to complete the optical branching unit 5.

[Embodiment 2] FIG. 3 shows an optical branching unit of the second embodiment. The difference from FIG. 1 is that an optical filter 17 for removing test light is provided in the communication line of the waveguide type optical coupler module 22.
Is inserted, and the communication line is given an appropriate angle to prevent reflection. The hole 24 for inserting the optical filter 17 is formed by etching or the like. The presence of the filter 17 can simplify the system and make it economical.

[Embodiment 3] FIG. 4 shows an optical branching unit of the third embodiment, in which a filter substrate 25 provided in a waveguide type optical coupler module 22 is provided with an optical filter 17 in accordance with the arrangement of communication lines. . Moreover, as in the case of FIG. 3, it is fitted into the groove 26 having an appropriate angle to prevent reflection on the communication line and fixed with an adhesive. The filter substrate 25 and the filter 17 may be configured in a zigzag shape as shown in FIGS. 5A and 5B or in a bridged shape. In this case, compared with the structure shown in FIG. 3, ordinary cutting can be performed without using etching, and the waveguide type optical coupler module 22 can be easily manufactured.

In the above-mentioned optical branching unit, description of the inside of the optical coupler module is omitted.
It suffices that this optical coupler is capable of branching light, and is not limited to the examples shown below, and various structures are conceivable.

Next, an embodiment of a waveguide type optical coupler module suitable for use in the optical branching unit of the present invention is shown in FIG.
~ It demonstrates, referring to FIG.

[Embodiment 4] FIG. 6 shows a fourth embodiment of the present invention, in which a waveguide type optical coupler module 22 includes an optical waveguide substrate 32, a guide pin fixing member 33, and a multi-fiber optical connector (8MT). ) 18, clip 34, guide pin 23
FIG. 3 is a view showing a joint state between the optical waveguide and the optical fiber, which is constituted by and.

FIG. 7 is an exploded view of FIG. 6, in which the optical waveguide substrate 32 is provided with the optical waveguide 31 and a positioning guide groove 36, and the guide pin 23 is fitted into the guide groove 36 to perform positioning. In addition, the guide pins 23 are adhered and fixed by the adhesive 35 by the guide pin fixing member 33 in a state where part of the guide pins 23 are projected from both end surfaces of the optical waveguide substrate 32, and the guide pins 23 are held by the optical waveguide substrate 32. . The multi-fiber optical connector (8MT) 18 holds the optical fiber 11 positioned in a predetermined position so as to abut and optically couple with the optical waveguide 31 when the guide pin 23 is fitted in the guide groove 36. The joining is made possible by abutting against the guide pin hole 37 of the multi-fiber optical connector (8MT) 18. The clip 34 holds the optical coupling state between the optical waveguide 31 and the multi-fiber optical connector (8MT) 18.

FIG. 8 shows a multi-core optical connector (8 shown in FIG.
It is a partially broken perspective view of the MT) 18, in which two four-core tape core wires 19 corresponding to a communication port and a test port are inserted into a ferrule of a multi-core optical connector. Here, the respective cores of the two four-core tape cores 19 and 19 are alternately housed and connected to the opposed waveguide type optical coupler module 22.

FIG. 9 is an end view showing the relative positional relationship between the optical waveguide 31 and the guide pin 23. The optical waveguide substrate 32 is shown in FIG.
Is an optical waveguide 31 formed corresponding to a plurality of optical fibers 11 arranged in parallel on a SiO ₂ layer formed on a silicon substrate with a predetermined spacing, and a predetermined distance W from the optical waveguide 31. There are provided at least two or more positioning guide grooves 36 formed in parallel with each other. Also,
The guide pin fixing member 33 fixes the guide pins 23 fitted in the guide grooves 36, and is adhered in a state where the plurality of guide pins 23 are projected from both end surfaces of the optical waveguide substrate 32 in the guide grooves 36. It is fixed.

On the end face of the optical waveguide substrate 32, a plurality of optical waveguides 31 are formed on the optical waveguide substrate 32, for example, eight optical waveguides 31 are provided in this embodiment. In these optical waveguides 31, as shown in FIG. 9, the center of each axis is at a position of a predetermined depth h from the reference plane 38 with the upper surface of the optical waveguide substrate 32 as a reference, and the center distance of each axis is a predetermined distance. P
They are lined up in _F. Further, the positioning guide groove 36 has a predetermined distance W from the axial center of the optical waveguide 31 at both ends.
At a position of the guide pin 23 and the axial center depth of the guide pin 23 is set to match the depth of the optical waveguide 31, and the guide pin hole 37 is fitted into the guide pin 23 to be connected later.
Of the plurality of optical fibers 11 held by the multi-fiber optical connector (8MT) 18 having a space P _F and the guide pin hole 3
7 are arranged on the same straight line so that their relative positions to the interval P _G are matched.

On the other hand, in the guide pin fixing member 33, the lower surface 33a facing the optical waveguide substrate 32 forms a recess, and the depth d and the height of the apex of the guide pin 23 from the reference surface 38 of the optical waveguide substrate 32 are formed. and h ₁ are set to be equal (d = h ₁ ). The guide pin 23 is the optical waveguide substrate 32.
The peripheral surface of the guide groove 36 and the lower surface 33a of the guide pin fixing member 33 are sandwiched and fixed. Further, both end faces of the optical waveguide substrate 32, each end face of the optical waveguide 31 and both end faces of the guide pin fixing member 33 are flush with each other.

FIG. 10 shows the guide pin 23 shown in FIG. 9 sandwiched in the guide groove 36 and adhered and fixed. The guide pin 23 is held in the space on the lower surface side of the guide pin 23, and the guide pin fixing member 33 and the optical waveguide substrate. The adhesive 35 is filled and bonded and fixed only in the space on the side of contact with 32, and the optical waveguide 31 is affected between the upper reference surface 38 of the optical waveguide 31 and the guide pin fixing member 33. Because there is no adhesive 35
The space is formed by avoiding filling.

Optical waveguide substrate 32, guide pin fixing member 3
For 3 and the like, for example, single crystal silicon is used as the substrate material, and the positioning guide groove 36 and the like can be formed into the V groove by the silicon anisotropic etching technique. In addition, a quartz waveguide by a fire deposition method that can be easily constructed on a silicon substrate can be used and can be formed with high precision.

The optical waveguide 31 of the optical waveguide substrate 32 and the optical fiber 1 of the multi-fiber optical connector (8MT) 18 shown in FIG.
1 and 1 are accurately aligned by the guide pin 23, and the aligned end faces are brought into contact with each other. As a result, the optical waveguide 31 and the optical fiber 11 are joined accurately without alignment.

[Fifth Embodiment] FIG. 11 shows a fifth embodiment of the present invention, showing a perspective view of a joint portion of a waveguide type optical coupler module 22, and FIG. It is a figure which shows a side view.

In FIGS. 11 and 12, the same parts as those described in FIGS. 6 to 10 of the fourth embodiment are designated by the same reference numerals, and the description of the equivalent parts will be omitted.

In the waveguide type optical coupler module according to the fifth embodiment, as shown in FIGS. 11 and 12, the optical waveguide 31 and the optical fiber 11 of the multi-fiber optical connector (8MT) 18 are aligned by the guide pin 23. At this time, the exposed end face 18a of the multi-fiber optical connector 18 of the optical fiber 11 of the multi-fiber optical connector (8MT) 18 and the light incident / exit end face 22a of the optical waveguide 31 are inclined at the same angle θ. It has been polished. The fifth embodiment is for reducing the reflected return light due to Fresnel reflection generated at the joint between the optical waveguide 31 of the fourth embodiment and the optical fiber 11 of the multi-fiber optical connector (8MT) 18. . For example, the exposed end face 18a of the multi-fiber optical connector 18 of the optical fiber 18 and the light incident / exit end face 22a of the optical waveguide 31 are highly accurately angle-polished at an angle θ of about 8 degrees or more to reflect Fresnel reflection. It is possible to prevent the light from entering the guided mode and reduce the connection loss of the propagating light due to Fresnel reflection.

[Sixth Embodiment] FIG. 13 shows a sixth embodiment of the present invention, which is an optical waveguide substrate 32 and a guide pin fixing member 33.
Fig. 14 is an end view showing the relationship with Fig. 14, and Fig. 14 is a diagram showing the fitted state of Fig. 13.

In the waveguide type optical coupler module according to the sixth embodiment, as shown in FIGS. 13 and 14, the guide pin fixing member 33 has a cross-sectional shape so as to surround the upper surface and both side surfaces of the optical waveguide substrate 32. The guide pin 23 is formed in a reverse concave shape.
Are held in the same manner as in the fourth embodiment.

In the sixth embodiment, as shown in FIG.
Since the size of the light entrance / exit end face 22a is limited,
The both sides 32a and 32b of the optical waveguide substrate 32 are connected to the guide groove 3
6 is cut away, and the lower surface 33 of the guide pin fixing member 33 is opposed to the width D ₁ between the side surfaces 32a and 32b.
a is set equal (D = D ₁ ). Further, the depth H ₁ in which the lower surface 33a that opposes the optical waveguide substrate 32 is formed as a groove and the height H of the apex of the guide pin 23 from the lower surface 32c of the optical waveguide substrate 32 are set to be equal (H = H ₁ ). The guide pin 23 is sandwiched between the peripheral surface of the guide groove 36 of the optical waveguide substrate 32 and the lower surface 33a of the guide pin fixing member 33, and is adhesively fixed to both side faces 32a and 32b of the optical waveguide substrate 32 with an adhesive 35.

In the sixth embodiment, the guide pin 23 having a higher strength can be fixed in fixing the guide pin 23 of the fourth embodiment. Further, even in the case of bonding the optical waveguide substrate 32 and the guide pin fixing member 33, there is an excellent effect that stronger bonding can be achieved and the guide pin 23 can be attached to and detached from the guide groove 36.

[Embodiment 7] FIG. 15 is a view showing a trial construction of an optical branching unit of the present invention as a seventh embodiment.

In the seventh embodiment, as shown in FIG. 15, an optical branching unit was prototyped, and the optical branching unit could be simplified. As shown in the figure, the extra length processing portion is represented by a wavy line, and it is confirmed that there is no complexity due to tape formation. In addition, by mounting the waveguide type optical coupler module 22 in a horizontal manner in the unit, the tape core wire 19
There is no twist or distortion in the extra length processing part of the tape core wire 19
Can be assembled.

The measurement results of the prototype are shown in "Table 1". Regarding the waveguide type optical coupler module 22 in this prototype, the results are obtained by using a linear waveguide type optical module.

[0045]

[Table 1]

In the above fourth to sixth embodiments, the guide pin type in which the positioning guide groove 36 is integrally formed in the optical waveguide substrate 32 is shown, but the present invention is not limited to this. For example, other shapes or optical waveguides and positioning guide grooves may be separately formed, and each may be accurately fixed in a predetermined positional relationship. Further, although the case where eight optical waveguides 31 are formed is shown in the above-mentioned embodiment, the present invention is not limited to this, and the case of joining a large number of optical waveguides and optical fibers can be used. The effect can be obtained. Further, this optical coupler may have various structures as long as it can branch light.

[0047]

As described above, according to the present invention, the integrated chip and the tape can be used to simplify the configuration and the assembling. Therefore, the optical access portion in the optical line is small and economical. You can get something. Further, according to the waveguide type optical coupler module of the present invention, it is possible to optically couple the optical waveguide and the optical fiber with no alignment and very easily, and to connect the optical waveguide and the optical fiber in a multi-core package. The work efficiency can be significantly improved and the cost can be reduced. Also, because of the connection by the guide pin and the clip, the optical waveguide and the optical fiber can be attached and detached, the optical waveguide chip and the like can be easily replaced, and the transmission loss of the connection part can be reduced. It has an excellent effect that the configuration is simple.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing the completion of joining in FIG.

FIG. 3 is a configuration diagram showing a second embodiment of the present invention.

FIG. 4 is a configuration diagram showing a third embodiment of the present invention.

FIG. 5 is a perspective view showing a filter substrate and an optical filter according to a third embodiment of the present invention.

FIG. 6 is an assembled perspective view showing a fourth embodiment of the present invention.

FIG. 7 is an exploded perspective view of FIG.

FIG. 8 is a partially cutaway perspective view of multi-core connector modules 18C and 18D.

FIG. 9 is an end view showing the relationship between the optical waveguide substrate and the guide pin fixing member.

FIG. 10 is a diagram showing a fitted state of the optical waveguide substrate and the guide pin fixing member.

FIG. 11 is an assembled perspective view showing a fifth embodiment of the present invention.

FIG. 12 is a diagram showing a joined state of an optical waveguide and an optical fiber.

FIG. 13 is an end view showing a sixth embodiment of the present invention.

FIG. 14 is a diagram showing a fitted state of an optical waveguide substrate and a guide pin fixing member.

FIG. 15 is a prototype construction diagram showing a seventh embodiment of the present invention.

FIG. 16 is a configuration diagram of an optical line test system.

FIG. 17 is a configuration diagram showing a conventional optical branching unit.

FIG. 18 is an assembled perspective view showing joining of a conventional optical waveguide and an optical fiber.

[Explanation of symbols]

 1, 2 Communication ports 3, 4 Test port 5 Optical branching unit 6 Single-core ferrule 7 Optical coupler unit 8 Multi-core ferrule 9 In-station cable 10 Out-of-station cable 11 Optical fiber 12 Optical transmission terminal station 13 1 × N optical switch 14 Optical pulse Tester 15 Control device 16 Display device 17 Optical filter 18 Multi-core optical connector 19 Tape core wire 20 Single-core connector 21 Extra length tray 22 Waveguide type optical coupler module 23 Guide pin 24 Optical filter insertion hole 25 Filter substrate 26 Filter Board insertion groove 27 Optical waveguide component 28 Optical waveguide board 29 Optical fiber alignment board 30 Fixed board 31 Optical waveguide 32 Optical waveguide board 33 Guide pin fixing member 34 Clip 35 Adhesive 36 Guide groove 37 Guide pin hole 38 Reference plane

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazunori Chida 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (6)

[Claims] 1. An optical branching unit used in an optical line access device for inserting a test light into an optical line when performing an optical line test, which is connectable to two multi-core connector modules accommodating two 2N cores. On the other hand, a waveguide-type optical coupler module integrated and integrated into a chip is provided, while an N-core accommodating multi-core connector corresponding to one communication port and a 2N core-accommodating multi-core connector corresponding to two test ports are provided. An N-core multi-core connector corresponding to the other communication port corresponding to the communication port is provided, and an N-core multi-core connector and an N-core corresponding to one test port of the 2N-core multi-core connector are provided. It is connected to one of the above-mentioned multi-core connector modules for accommodating 2N cores, which are alternately accommodated by a tape core, and the other test port of the N-core single-core optical connector and the 2N-core accommodating multi-core connector is connected. Optical branching unit, characterized in that the remaining N heart corresponding to connect to multi-fiber connector module of the other of said 2N center housing accommodating alternately in ribbon was in. 2. A coupler module for use in the optical branching unit according to claim 1, which is compatible with a plurality of optical fibers arranged in parallel on a SiO ₂ layer formed on a silicon substrate with a predetermined interval. And an optical waveguide substrate having at least two guide grooves for positioning formed in parallel with each other with a predetermined distance from the optical waveguide, and a guide pin fitted into the guide groove. A guide pin fixing member that has a plurality of the guide pins protruding from both end faces of the optical waveguide substrate into the guide groove and fixedly adhered to the guide groove, and abutting against the optical waveguide when the guide pins are fitted in the guide groove. A multi-fiber optical connector that holds an optical fiber that has been positioned in a predetermined manner so as to optically couple with each other, and a clip that holds an optical coupling state between the optical waveguide and the multi-fiber optical connector. Waveguide optical coupler module according to claim and. 3. The waveguide type optical coupler module according to claim 2, wherein the heights of the respective axis centers of the optical waveguide and the guide pins on both end surfaces of the optical waveguide substrate are the same, and the heights thereof are the same. A waveguide type optical coupler module, which is arranged on a line. 4. The waveguide type optical coupler module according to claim 2, wherein a space is provided between the upper reference surface of the optical waveguide and the guide pin fixing member. module. 5. The waveguide type optical coupler module according to claim 2, wherein the end face of the optical fiber and the light input / output end face of the optical waveguide are obliquely polished at the same angle θ. Optical coupler module. 6. The waveguide type optical coupler module according to claim 2, wherein an optical filter for removing test light is mounted on a communication line of the waveguide type optical coupler module. module.