WO2011155606A1

WO2011155606A1 - Apparatus for manufacturing optical fiber provided with ferrule

Info

Publication number: WO2011155606A1
Application number: PCT/JP2011/063395
Authority: WO
Inventors: 照武小林; 邦彦藤原
Original assignee: 株式会社フジクラ
Priority date: 2010-06-10
Filing date: 2011-06-10
Publication date: 2011-12-15
Also published as: JP5291833B2; JPWO2011155606A1

Abstract

Disclosed is an apparatus for manufacturing an optical fiber provided with a ferrule, which is provided with: a ferrule placing section of the optical fiber provided with the ferrule, said optical fiber being in a state wherein, with an uncured adhesive, the optical fiber is aligned by an aligning section, and the leading edge of the optical fiber is pressed to the front wall surface in a recessed area filled with the adhesive; a stopper which stops moving of the ferrule to the front; an optical fiber holding section which holds the optical fiber; and an adhesive curing section which cures the adhesive applied to the ferrule placed on the ferrule placing section. The optical fiber holding section is provided with: an optical fiber clamp which can slide in the longitudinal direction of the optical fiber, while holding the optical fiber; an urging section which urges the optical fiber clamp to the front; and a lock section which locks the optical fiber clamp at a position where the optical fiber clamp is retracted against the reaction force of the urging section.

Description

Optical fiber production equipment with ferrule

The present invention relates to a ferrule-equipped optical fiber production apparatus for producing an optical fiber with a ferrule by attaching a ferrule made of a transparent resin having an adhesive-filled recess for projecting an optical fiber tip from an inner surface thereof to the optical fiber. In particular, the present invention relates to an optical fiber manufacturing apparatus with a ferrule that enables an optical fiber to be bonded and fixed in a state where its front end surface is correctly pressed against the front wall surface of the adhesive filling recess.
This application claims priority based on Japanese Patent Application No. 2010-132688 filed in Japan on June 10, 2010, the contents of which are incorporated herein by reference.

As an optical path conversion optical connector that optically connects between the optical element on the circuit board and the optical fiber introduced along the circuit board surface, the outer surface of the transparent resin ferrule is inclined with respect to the longitudinal direction of the optical fiber hole. There is an optical connector that forms an inclined surface and uses the inclined surface as an internal reflection surface for optical path conversion (see Patent Document 1 below).

In the case of an optical connector that changes the optical path by internal reflection, it has an optical fiber hole that does not penetrate to the outside, but the tip of the optical fiber is positioned near the internal reflection surface of the ferrule so that the position of the tip surface of the optical fiber is accurately positioned. It is appropriate to abut against the wall surface of the internal space formed on (wall surface having an angle with respect to the internal reflection surface). In this case, an adhesive filling recess is formed in the vicinity of the internal reflection surface, the tip of the optical fiber hole is opened in this adhesive filling recess, and the optical fiber is abutted against the front wall surface of the adhesive filling recess. Is appropriate.
In addition, it has a ferrule made of transparent resin, and its tip surface is abutted with the tip surface of another optical connector, so that the optical fiber built in the other optical connector and the optical fiber built in itself are separated. There are optical connectors that are arranged on substantially the same straight line and optically connect. This optical connector also has an optical fiber hole that does not penetrate to the outside, and the adhesive formed on the tip of the optical fiber in the vicinity of the tip of the ferrule so that the tip of the optical fiber is positioned accurately It is appropriate to abut against the front wall of the filling recess.
In any case, in the state where the optical fiber is abutted against the front wall surface of the adhesive filling recess and filled with the adhesive, for example, if it is a thermosetting adhesive, the adhesive is cured by heating. However, conventionally, in the process of such adhesive heat curing, a special apparatus is not considered, simply heating the optical fiber after abutting against the front wall surface of the adhesive filling recess.

Japanese Unexamined Patent Publication No. 2009-258510

As described above, the front end of the optical fiber is abutted against the front wall surface of the adhesive-filled recess, and once the position of the front end surface of the optical fiber is accurately positioned, the subsequent operation or the adhesive is cured. In the process of shrinking, the tip surface of the optical fiber may be separated from the front wall surface of the adhesive-filled recess, or the tip of the optical fiber may move on the front wall surface (move along the front wall surface).
If the tip surface of the optical fiber moves away from the front wall surface of the adhesive-filled recess, or the optical fiber tip position deviates from the ideal position on the front wall surface, the optical fiber tip surface position deviates from the set position, and the optical fiber Optical loss in optical connection with the optical element increases.

The present invention has been made based on the above background, and can be bonded and fixed in a state where the optical fiber is correctly pressed against the front wall surface of the adhesive filling recess of the transparent ferrule. A ferrule capable of accurately positioning in the longitudinal direction of the fiber and preventing displacement on the front wall surface of the optical fiber tip position (displacement in the direction along the front wall surface), and preventing light loss due to positional displacement of the optical fiber tip surface An object of the present invention is to provide an attached optical fiber manufacturing apparatus.

An optical fiber manufacturing apparatus with a ferrule according to an aspect of the present invention is provided in the adhesive filling recess of a transparent resin ferrule having an adhesive filling recess that protrudes the inner end of an optical fiber positioned by a positioning portion. The adhesive is cured by the adhesive curing unit in a state where the adhesive is filled and the optical fiber is positioned by the positioning unit and the tip is pressed against the front wall surface of the adhesive filling recess. An optical fiber manufacturing apparatus with a ferrule for manufacturing an optical fiber with a ferrule, wherein the optical fiber is positioned by the positioning portion and the tip of the optical fiber is pushed against the front wall surface of the adhesive filling recess. Ferrule for mounting the ferrule in an uncured optical fiber with a ferrule in an applied state A placement portion; a stopper that stops the ferrule from moving forward; an optical fiber holding portion that holds the optical fiber; and an adhesive curing portion that cures the adhesive filled in the ferrule placed on the ferrule placement portion; The optical fiber holding portion includes: an optical fiber clamp that is slidable in a longitudinal direction of the optical fiber in a state in which the optical fiber is clamped; a biasing portion that biases the optical fiber clamp forward; A lock portion that locks the optical fiber clamp in a position retracted against the reaction force of the biasing portion.

In the optical fiber manufacturing apparatus with a ferrule according to the above-described aspect of the present invention, the optical fiber clamp can be opened and closed by a clamp body on which the optical fiber is mounted and slidable in the longitudinal direction of the optical fiber, and a hinge on the clamp body. A structure provided with a lid that is attached and clamps the optical fiber may be adopted.

The ferrule-equipped optical fiber manufacturing apparatus according to the aspect of the present invention employs a configuration in which the adhesive is a thermosetting adhesive, and the adhesive curing portion is a hot plate that also serves as the ferrule placement portion. May be.

In the optical fiber manufacturing apparatus with a ferrule according to the above aspect of the present invention, the optical fiber clamp is retracted against the reaction force of the urging portion and locked in the retracted position. In this state, the ferrule of the optical fiber with a ferrule that is not cured of the adhesive is placed on the ferrule mounting portion, and the optical fiber is clamped and held by an optical fiber clamp.
Next, when the lock of the optical fiber clamp locked in the retracted position is released, the optical fiber clamp is urged by the force of the spring and moves forward with the optical fiber clamped, and the tip of the optical fiber is in contact with the adhesive filling recess of the ferrule. It hits the front wall of the place. Accordingly, the optical fiber is kept pressed against the front wall surface of the adhesive filling recess by the force of the spring.
Therefore, it is possible to prevent the front end surface of the optical fiber from being separated from the front wall surface of the adhesive-filled recess in the subsequent operation or in the process in which the adhesive is cured and contracted. Moreover, since the tip position of the optical fiber is anchored to the wall surface by being pressed against the wall surface, it is possible to prevent displacement on the front wall surface (shift in the direction along the front wall surface). In this way, the optical fiber is bonded and fixed correctly while being pressed against the front wall surface of the adhesive-filled recess. Accordingly, accurate positioning of the front end surface of the optical fiber in the longitudinal direction of the fiber and prevention of displacement of the front end position of the optical fiber in the wall surface direction can be realized, and light loss due to positional deviation of the front end surface of the optical fiber can be prevented.

It is the side view which showed the principal part of the optical fiber manufacturing apparatus with a ferrule which concerns on one Embodiment of this invention in the cross section. It is a top view of FIG. It is the figure which expanded the cross-section part of FIG. FIG. 4 is a plan view of FIG. 3. It is the figure which removed the optical fiber clamp about the right side part of FIG. It is a principal part enlarged view of FIG. FIG. 7 is a cross-sectional view taken along line AA in the main part of FIG. 6. FIG. 4 is a cross-sectional view illustrating a state in which a principal part of FIG. 3 is enlarged and an optical fiber 4 ′ with an uncured ferrule is set. It is sectional drawing of the optical fiber with a ferrule made into object with the optical fiber manufacturing apparatus with a ferrule which concerns on the said embodiment. FIG. 10 is a plan view of FIG. 9. It is sectional drawing of another optical fiber with a ferrule made into object with the optical fiber manufacturing apparatus with a ferrule which concerns on the said embodiment.

Hereinafter, an optical fiber manufacturing apparatus with a ferrule according to an embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

FIG. 1 is a side view showing in cross section the main part of an optical fiber manufacturing apparatus 1 with a ferrule according to an embodiment of the present invention. FIG. 2 is a plan view of FIG. FIG. 3 is an enlarged view of a cross-sectional portion of FIG. FIG. 4 is a plan view of FIG.
This ferrule-equipped optical fiber manufacturing apparatus 1 is an apparatus for obtaining an optical fiber 4 with a ferrule in which a ferrule 3 is attached to an optical fiber tape core wire 2 as shown in FIGS.
The optical fiber ribbon 2 according to the present embodiment includes a plurality of 0.25 mmφ optical fiber strands 2b each having a 0.125 mmφ bare fiber (glass fiber) 2a coated with an ultraviolet curable resin, and is collectively made of UV curable resin. It is a coated optical fiber ribbon. A covering portion of the optical fiber ribbon 2 is indicated by 2c.

The ferrule 3 is made of a transparent resin, and a 45 ° inclined surface 13 is formed on the tip side. The bottomed holes 5 orthogonal to the inclined surface 13 are formed by the number of optical fibers of the optical fiber ribbon 2. The bottom surface of the bottomed hole 5 is an internal reflection surface 5a when viewed from the inside of the ferrule. An adhesive filling recess 6 is formed in the vicinity of the internal reflection surface 5a. An optical fiber hole 7 is formed in the adhesive filling recess 6 as an optical fiber positioning portion having an open end. The adhesive filling recess 6 projects the optical fiber inserted and positioned in the optical fiber hole 7 from its inner surface. In the illustrated example, an adhesive filling window 9 for filling an adhesive for adhering and fixing the optical fiber ribbon 2 is formed in front of the opening 8 for introducing the ribbon. The optical fiber hole 7 communicates with the adhesive filling recess 6 from the front wall surface 9 a of the adhesive filling window 9.
The adhesive filling window 9 and the adhesive filling recess 6 are filled with the adhesive 10 to fix the optical fiber.
The optical fiber (bare fiber) 2a from which the tape core coating 2c and the strand coating 2b have been removed is bonded in a state where the tip of the optical fiber 2a is abutted against the front wall 6a in the adhesive filling recess 6 filled with the adhesive 10. It is fixed. Further, the optical fiber (bare fiber) 2a is bonded and fixed on the optical fiber guide groove 9b by the adhesive 10 filled in the adhesive filling window 9, and the optical fiber tape core wire is formed in the opening portion 8 for introducing the tape core wire. The vicinity of the covering end 2 is adhered and fixed. An adhesive also enters the optical fiber hole 7 to bond and fix the optical fiber.
In this optical ferrule 3, light emitted from the optical fiber 2a enters the transparent resin (ferrule) from the front wall surface 6a of the adhesive-filled recess 6 and is reflected downward by the internal reflection surface 5a to change the optical path. The light is emitted to the optical element 12 on the circuit board (optical / electrical composite board) 11. Or follow the reverse optical path.

The optical fiber manufacturing apparatus 1 with a ferrule will be described.
This ferrule-equipped optical fiber manufacturing apparatus 1 is an uncured adhesive in which an optical fiber 2 a is inserted into an optical fiber hole 7 of a ferrule 3 and an adhesive filling recess 6 and an adhesive filling window 9 are filled with an adhesive 10. This is an apparatus for setting an optical fiber 4 ′ with a ferrule and curing the adhesive. The adhesive is filled into the adhesive filling recess 6 and the adhesive filling window 9 after inserting the optical fiber 2 a into the ferrule 3. The adhesive penetrates into the optical fiber hole 7.
This ferrule-equipped optical fiber manufacturing apparatus 1 includes a ferrule placement section 14 on which the ferrule 3 of the uncured ferrule-equipped optical fiber 4 ′ is placed, a stopper 15 that stops the ferrule 3 from moving forward, and the ferrule placement. An optical fiber holding portion 16 for holding the coated portion 2c of the optical fiber ribbon 2 on the rear side of the portion 15, and an adhesive curing portion for curing the adhesive filled in the ferrule 3 placed on the ferrule placement portion 14 17.
The stopper 15 has a U-shape when viewed from the side in order to restrain the ferrule 3 from floating.
In the present embodiment, a thermosetting adhesive is used as the adhesive, and a so-called hot plate using an electric heater is used as the adhesive curing portion 17. The hot plate 17 also serves as a ferrule placement unit 14 on which the ferrule 3 is placed. A broken line portion indicated by 17 a indicates an electric heating portion of the hot plate 17.

The optical fiber holding portion 16 includes an optical fiber clamp 21 that can slide in the longitudinal direction of the optical fiber while holding the optical fiber covering portion 2c, and a spring 22 as a biasing portion that biases the optical fiber clamp 21 forward. And a lock portion 23 that locks the optical fiber clamp 21 in a position retracted against the reaction force of the spring 22.

As shown in FIGS. 6 to 8, the optical fiber clamp 21 includes a clamp main body 24 that can be slid in the longitudinal direction of the optical fiber by placing the covering portion 2c of the optical fiber ribbon 2 and hinges to the clamp main body 24. 25 and a lid body 26 attached to be openable and closable. As shown in FIG. 7, the lid 26 has an L-shaped cross section having an operation portion 26a for touching the finger so that the user can easily perform the opening / closing operation with the finger. In the illustrated example, the lid body 26 presses the tape core wire 2 with its own weight. In addition, either one of the clamp body 24 and the lid body 26 is made of a magnetic material (for example, SUS430 or the like) and a magnet is embedded in the other, or a magnet is embedded in both. You can also. Other configurations can also be adopted.
The clamp body 24 is slidable back and forth along a guide pin 28 that is passed between two pin receiving portions 27 provided at the front and rear of the clamp body 24 and penetrates the clamp body 24.
The spring 22 is disposed in a cylindrical recess 24a formed on the rear side of the clamp body 24 so as to surround the guide pin 28, and the clamp body 24 is attached to the front (left side in FIGS. 3 and 4). To force.

The lock portion 23 includes a vertical lock pin 31 that can move up and down so that its upper end can be engaged with a lock notch 24b formed on the bottom surface of the clamp body 24, and a spring 32 that urges the lock pin 31 upward. , A horizontal vertical movement pin 33 having a base end fixed to an intermediate portion of the lock pin 31, and a lock release body 34 capable of lowering the vertical movement pin 33. FIG. 5 is a view showing the right side portion of FIG. 4 excluding the optical fiber clamp 21.
The lock pin 31 is fitted in a lock pin hole 37a formed in the lock portion main body 37 integrally fixed to the mechanism base portion 36 so as to be movable up and down. The vertical movement pin 33 protrudes horizontally from a vertically long pin insertion hole 37 b formed on the side surface of the lock portion main body 37, and fits into a vertically long hole 34 a provided in the unlocking body 34.
The unlocking body 34 is urged upward by a spring 38 and includes an unlocking body holding pin 39 that holds the unlocking body 34 in the lowered position. When the unlocking body 34 is lowered, the end of the unlocking body holding pin 39 fits into a locking hole 37c formed in the lock body 37, and holds the unlocking body 34 in the lowered position. Maintain the release state.

The point which produces the optical fiber 4 with a ferrule with said optical fiber manufacturing apparatus 1 with a ferrule is demonstrated.
The coating 2c of the optical fiber ribbon 2 is removed to expose the optical fiber 2b, and the coating is removed to expose the bare fiber 2a. When the bare fiber 2 a of the optical fiber ribbon 2 is inserted into the optical fiber hole 7 and abutted against the front wall surface 6 a of the adhesive filling recess 6, the coated end of the optical fiber ribbon 2 is in the adhesive filling window 9. Located in.
Next, the adhesive filling recess 6 and the adhesive filling window 9 are filled with the thermosetting adhesive 10. The adhesive also enters the optical fiber hole 7 and the optical fiber core wire introduction hole 8.

Next, as shown in FIG. 8, the uncured optical fiber 4 ′ with ferrule, which is uncured, is set in the optical fiber manufacturing apparatus 1 with ferrule.
The clamp body 24 is retracted in advance (state shown in FIG. 3). In this case, the lock release holding pin 39 is pulled (the state shown in FIG. 3), and is urged by the spring 22 to move forward (the tip of the clamp body 24 is in contact with the left pin receiving portion 27 in FIG. 3). When the clamp body 24 in the state) is retracted (moved to the right in FIG. 3), the lower end of the lower surface of the clamp body 24 is pushed back by pushing down the lock pin 31 whose upper end surface is inclined. The upper end of the biased lock pin 31 enters the locking recess 24b on the lower surface of the clamp body 24, and the clamp body 24 is locked in the retracted position (position in FIG. 3).
Next, the ferrule 3 is placed on the hot plate 17 (also serving as the ferrule placement portion 14) and applied to the stopper 15, and the covering portion 2c of the optical fiber ribbon 2 is placed on the clamp body 24, and then the lid body 26 is closed. Then, the optical fiber ribbon 2 is clamped.
Next, when the lock release body 34 is pushed down, the lock pin 31 is pushed down via the vertical movement pin 33 and is disengaged from the locking recess 24b on the lower surface of the clamp body 24, so that the clamp body 24 is unlocked. As a result, the optical fiber clamp 21 urged by the spring 22 moves forward while holding the optical fiber ribbon 2, advances the bare fiber 2 a, and the bare fiber 2 a has the tip surface of the adhesive filling recess 6. Press against the front wall 6a. Thus, the bare fiber 2a is pressed against the front wall surface 6a of the adhesive filling recess 6 by the force of the spring 22, and the bare fiber 2a is not separated from the front wall surface 6a.
When the hot plate 17 is heated in this state, the thermosetting adhesive 10 filled in the ferrule 3 is heated and cured. During this time, since the bare fiber 2a remains biased by the force of the spring 22, the bare fiber 2a moves and separates from the front wall surface 6a of the adhesive filling recess 6 due to shrinkage when the adhesive 10 is cured. Can be prevented. Moreover, since the tip position of the optical fiber is anchored to the wall surface by being pressed against the wall surface, the displacement on the front wall surface can be prevented.
Therefore, the optical fiber is bonded and fixed in a state where the front end surface is correctly pressed against the front wall surface of the adhesive filling recess. Accordingly, accurate positioning of the front end surface of the optical fiber in the longitudinal direction of the fiber is realized as set, and it is possible to prevent light loss due to positional deviation of the front end surface of the optical fiber.

Embodiment 2

In the above-described embodiment, since the thermosetting adhesive is used as the adhesive, the hot plate 17 that is a heating device is employed as the adhesive curing portion. However, for example, when an ultraviolet curable adhesive is used, it is illustrated. Is omitted, but an ultraviolet irradiation device for irradiating the adhesive of the ferrule 3 placed on the ferrule mounting part 14 with ultraviolet rays is provided.

Embodiment 3

In the above-described embodiment, the optical fiber holding unit is not limited to the embodiment, and the design can be changed as appropriate. In short, any configuration that includes an optical fiber clamp, a spring, and a lock portion and can be advanced from the retracted position by the spring force while holding the optical fiber may be used.
In addition, the optical fiber of interest is shown as a 12-fiber optical fiber ribbon in the figure, but the number of cores is not particularly limited, and an 8-fiber or 4-fiber optical fiber tape may be used. Alternatively, a single optical fiber may be used.
Moreover, although the optical fiber hole 7 of the ferrule 3 in the illustrated example is parallel to the substrate surface, the optical fiber hole 7 is not necessarily parallel and may have a slight angle with respect to the substrate surface. In this case, the angle of the internal reflection surface 5a is set such that the reflection direction is perpendicular to the substrate surface.
Further, the tip end surface of the ferrule 3 inclined by 45 ° can be used as the internal reflection surface without providing the bottomed hole 5.

Embodiment 4

In the above-described embodiment, the target optical connector has been described as an optical path conversion type optical connector by internal reflection. However, as shown in FIG. 11, the distal end surface 18 of the transparent resin ferrule 3 </ b> A has an optical fiber hole 7. The optical connector may be an optical connector using a ferrule having a structure in which the optical fiber hole 7 does not penetrate the ferrule 3A. That is, it has an adhesive filling recess 6 similar to the ferrule 3 of FIG. 9 described above, an optical fiber hole 7 that does not penetrate to the outside, an adhesive filling window 9, an opening 8 for introducing a tape core wire, etc. 18 is orthogonal to the longitudinal direction of the optical fiber hole 7 and does not internally reflect.
And this optical connector arrange | positions so that the ferrule front end surface 18 may face the optical element 12 on the circuit board 11 toward the circuit board (optical / electrical composite board) 11 as shown in FIG. Are optically connected to the optical fiber 2a incorporated in the optical element 12 and the optical element 12 on the circuit board 11.
In addition, this optical connector does not face the ferrule tip end face 18 toward the circuit board, but is brought into contact with the tip end face of another optical connector so that the optical fiber built in the other optical connector is built in itself. It can be used when the optical fiber 2a is arranged on substantially the same straight line and optically connected.
Also in these cases, the tip of the optical fiber 2a is placed on the front wall surface 6a of the adhesive filling recess 6 formed in the vicinity of the tip surface 18 of the ferrule 3A so that the tip surface position of the optical fiber 2a is accurately positioned. It is appropriate to abut, and the above-described effects of the present invention are effectively achieved.

According to the ferrule-equipped optical fiber manufacturing apparatus according to the aspect of the present invention, the optical fiber can be bonded and fixed in a state in which the optical fiber is correctly pressed against the front wall surface of the adhesive-filled recess of the transparent ferrule. This enables accurate positioning in the fiber longitudinal direction and prevention of misalignment on the front wall surface of the optical fiber tip position (displacement in the direction along the front wall surface), thereby preventing light loss due to misalignment of the optical fiber tip surface. An optical fiber manufacturing apparatus with a ferrule can be provided.

1 Optical fiber manufacturing equipment with ferrule 2 Optical fiber ribbon (optical fiber)
2a Bare fiber (optical fiber)
2b Optical fiber 2c Covering part (of optical fiber ribbon) 3, 3A Ferrule 4 Optical fiber with ferrule 4 'Optical fiber with ferrule uncured adhesive 5 Internal reflection surface 6 Adhesive filling recess 6a Front wall surface 7 Optical fiber hole (positioning part)
8 Tape core wire introduction hole (optical fiber introduction hole)
DESCRIPTION OF SYMBOLS 9 Adhesive filling window 10 Adhesive 11 Circuit board 12 Optical element 14 Ferrule mounting part 15 Stopper 16 Optical fiber holding part 17 Hot plate (adhesive hardening part)
18 Ferrule tip (outside)
DESCRIPTION OF SYMBOLS 21 Optical fiber clamp 22 Spring 23 Lock part 24 Clamp main body 24a Cylindrical recess 24b Notch for locking 25 Hinge 26 Cover body 27 Pin receiving part 28 Guide pin 31 Lock pin 32 Spring (biasing part)
33 Vertical movement pin 34 Lock release body 34a Vertically long hole 36 Mechanism base part 37 Lock part body 37c Locking hole 37a Lock pin hole 37b Pin insertion hole 38 Spring 39 Lock release body holding pin

Claims

The adhesive filling recess of a transparent resin ferrule having an adhesive filling recess for projecting the tip of the optical fiber positioned by the positioning portion from the inner surface thereof is filled with an adhesive, and the optical fiber is the positioning portion And an optical fiber with a ferrule for producing an optical fiber with a ferrule by curing the adhesive by an adhesive curing portion in a state where the tip is pressed against the front wall surface of the adhesive filling recess A manufacturing device,
A ferrule for placing the ferrule in an optical fiber with an uncured ferrule with an adhesive uncured in a state where the optical fiber is positioned by the positioning portion and the tip of the optical fiber is pressed against the front wall surface of the adhesive filling recess A mounting section;
A stopper for stopping forward movement of the ferrule;
An optical fiber holding part for holding the optical fiber;
An adhesive curing unit that cures the adhesive filled in the ferrule placed on the ferrule mounting unit;
With
The optical fiber holding unit includes an optical fiber clamp that is slidable in the longitudinal direction of the optical fiber in a state where the optical fiber is clamped, a biasing unit that biases the optical fiber clamp forward, and the optical fiber clamp. An optical fiber manufacturing apparatus with a ferrule, comprising: a lock portion that locks in a position retracted against the reaction force of the urging portion.
The optical fiber clamp includes a clamp body that can be slid in the longitudinal direction of the optical fiber with the optical fiber mounted thereon, and a lid body that is attached to the clamp body so as to be opened and closed by a hinge and clamps the optical fiber. The optical fiber manufacturing apparatus with a ferrule according to claim 1.
The adhesive is a thermosetting adhesive,
The optical fiber manufacturing apparatus with a ferrule according to claim 1 or 2, wherein the adhesive curing section is a hot plate that also serves as the ferrule placement section.