JP4547033B2 - Optical connection parts manufacturing equipment - Google Patents

Description

  The present invention relates to an apparatus for manufacturing an optical connection component in which a refractive index matching body is provided on an end face of an optical transmission medium.

  Conventionally, an optical connector for optical connection with other components is sometimes provided at the end of an optical fiber (optical transmission medium). When this optical connector is attached to the end of the optical fiber, a refractive index matching body is often interposed between the end surface of the built-in optical fiber inserted into the ferrule of the optical connector and the end surface of the optical fiber. . As this refractive index matching body, there are known liquid or grease-like ones coated on both optical fiber end faces (Patent Documents 1 and 2), and a film-like one sandwiched between both optical fiber end faces (see Patent Document 3). It has been.

JP-A 64-65512 Japanese Patent Laid-Open No. 5-157943 JP 2005-173575 A

  However, the former has a problem that the function of the refractive index matching body is impaired due to the influence of temperature, vibration and the like. In the latter case, it is difficult to adjust the pressure when sandwiching the solid refractive index matching body, and there is a problem that both optical fibers are broken or broken.

  Furthermore, as a technique recently proposed by the present applicant, a gel-like adhesive refractive index matching body is formed in a sheet shape, an end face of an optical fiber is pressed against the refractive index matching body, and a refractive index matching body is provided on the end face. In this case, the optical fiber is damaged when the optical fiber is pulled away from the refractive index matching body, or the refractive index matching body adheres to the side of the optical fiber and is attached to the optical connector. There is a problem of affecting the centering accuracy when incorporating. In addition, the process becomes complicated to improve the reproducibility by suppressing the variation in the shape of the refractive index matching body attached to the end face of the optical fiber and the mixing of air between the end face of the optical fiber and the refractive index matching body. There is a problem that this leads to cost increase.

  The present invention has been made in view of the above circumstances, and provides an apparatus for manufacturing an optical connection component that can provide a refractive index matching member only on the end face of an optical transmission medium with good reproducibility and can reduce costs.

As a means for solving the above-mentioned problem, the invention described in claim 1 is a device for charging an optical connection medium, wherein the refractive index matching body is provided on the end face of the optical transmission medium; medium charging means for charging the optical transmission medium; An alignment body holding means for holding a liquid refractive index matching body, and adsorbing the liquid refractive index matching body held by the matching body holding means on an end surface of the optical transmission medium charged by the medium charging means, The adsorbed liquid refractive index matching body is solidified to form the refractive index matching body .
According to a second aspect of the present invention, there is provided a relative moving means for moving the end surface of the optical transmission medium and the liquid surface of the liquid refractive index matching body close to and away from each other.
According to a third aspect of the present invention, the medium charging unit is an electrostatic dielectric device including an electrode and a dielectric, and the electrostatic dielectric device holds the optical transmission medium in a charged state. It is characterized by.
According to a fourth aspect of the invention, the medium charging unit is an electrostatic chuck that holds the optical transmission medium in a charged state.
The invention described in claim 5 is characterized in that the medium charging means is a friction charging device that holds the optical transmission medium in a charged state.
According to a sixth aspect of the present invention, the matching body holding means includes a holding mechanism for attaching the liquid refractive index matching body, and a feeder for supplying the liquid refractive index matching body to the holding mechanism. It is characterized by that.
The invention described in claim 7 is characterized in that the holding mechanism is a holding wall.

According to the first and second aspects of the invention, the end face of the optical transmission medium and the liquid surface of the liquid refractive index matching body are relatively close to each other, and the liquid refractive index matching body is adsorbed only on the end face of the optical transmission medium. After that, by solidifying the liquid refractive index matching body to make a refractive index matching body, it is not necessary to strictly align the optical transmission medium, simplifying the process, and matching the refractive index with the end face of the optical transmission medium. It is possible to effectively prevent air from entering the body.
In addition, since the refractive index matching body is formed only on the end face of the optical transmission medium, the centering accuracy when the optical transmission medium is incorporated into the optical connector can be ensured, so that good optical performance between the optical transmission media connected to each other can be ensured. Connection can be realized.
Furthermore, by adjusting the amount of charge of the optical transmission medium, the amount of movement of the liquid refractive index matching body relative to the liquid surface, and the viscosity of the liquid refractive index matching body, the amount of adsorption of the liquid refractive index matching body on the end face of the optical transmission medium is adjusted. Since it becomes easy to stabilize the shape and thickness of the refractive index matching body, the refractive index matching body can be provided on the end face of the optical transmission medium with good reproducibility, and the cost can be reduced by simplifying the process.
According to the third, fourth, and fifth aspects of the invention, it is possible to charge and hold the optical transmission medium only by placing it, and it is possible to reduce the cost by simplifying the apparatus itself and the process. .
According to the sixth and seventh aspects of the invention, the liquid level of the liquid refractive index matching body can be kept new at all times, and the liquid refractive index matching body can be secured to the end face of the optical transmission medium by preventing the liquid surface from solidifying. Can be adsorbed well.

It is sectional drawing in alignment with a longitudinal direction, such as an optical fiber with a refractive index matching body in the Example of this invention. It is AA sectional drawing of FIG. It is sectional drawing in alignment with the longitudinal direction of each fiber at the time of connecting another optical fiber to the said optical fiber with a refractive index matching body. It is a side view of the manufacturing apparatus of the said optical fiber with a refractive index matching body. It is BB sectional drawing of FIG. It is a side view equivalent to FIG. 4 at the time of making a liquid refractive index matching body adsorb | suck to the end surface of an optical fiber using the said manufacturing apparatus. FIG. 5 is a side view corresponding to FIG. 4 after the liquid refractive index matching body is adsorbed to the end face of the optical fiber. It is a side view equivalent to a part of FIG. 4 which shows the modification of the said Example.

Embodiments of the present invention will be described below with reference to the drawings.
The optical fiber (optical transmission medium) 2 shown in FIG. 1 is an existing one made of a material such as quartz or plastic, for example, and is cut to a predetermined length, and the first half portion is inserted and held in the ferrule 4 of the optical connector 3. At the same time, the front end face is polished so as to be flush with the front end face 4 a of the ferrule 4. With the ferrule 4 attached to the front end of the connector body 5, the rear half of the optical fiber 2 is inserted and held in the connector body 5. Hereinafter, the optical fiber 2 may be referred to as a built-in optical fiber.

  Referring also to FIG. 2, the connector main body 5 is formed by integrally sandwiching the V-groove plate 6 and the pressing plate 7. The first half of the V-groove 8 of the V-groove plate 6 accommodates the latter half of the optical fiber 2, and the holding plate is arranged so that the side surface (outer peripheral surface) of the optical fiber 2 is in close contact with each inclined surface of the V-groove 8. 7 presses the optical fiber 2 toward the inside of the V-groove 8. In this state, the optical fiber 2 is centered with respect to the V-groove 8 by clamping the V-groove plate 6 and the holding plate 7.

  From the rear opening of the connector body 5, one end side of an optical fiber 9 (hereinafter also referred to as an optical fiber to be connected) to which the optical connector 3 is attached is inserted, and the optical fiber 9 is the latter half of the V groove 8. Is housed in. The optical fiber 9 has the same diameter as the optical fiber 2 and is pressed toward the inner side of the V-groove 8 by the pressing plate 7 in a state where the side surface (outer peripheral surface) is in close contact with each inclined surface of the V-groove 8. These are arranged so as to be concentric with the optical fiber 2. The optical fibers 2 and 9 are accommodated in the V-groove 8 in a state where the clamp of the connector body 5 is loosened.

  Here, referring also to FIG. 3, the built-in optical fiber 2 includes a refractive index matching body 11 having refractive index matching between the optical fibers 2 and 9 on the rear end face 2 a, so that the connected optical fiber 9 is connected. It is configured as an optical fiber (optical connection component) 10 with a refractive index matching body that enables good optical connection with the front end face 9a. The refractive index matching body 11 has elasticity and adhesiveness, and is in close contact with the end faces 2a and 9a of both optical fibers 2 and 9, and joins them. Thereby, even in the unpolished state in which the end faces 2a and 9a of both optical fibers 2 and 9 are cut, the optical signal is good without interposing the air having a different refractive index between the optical fibers 2 and 9. Transmission is possible.

  The refractive index matching body 11 may be any member that comes into close contact with an optical transmission medium (such as the optical fibers 2 and 9) or an optical component with appropriate tackiness when in contact with the optical transmission medium. Preferably, a material that has detachability with respect to an optical transmission medium or the like, does not cause cohesive failure, and does not adhere an adhesive substance to the removed optical transmission medium or the like. Specifically, polymer materials (eg, acrylic, epoxy, vinyl, silicone, rubber, urethane, methacryl, nylon, bisphenol, diol, polyimide, fluorinated epoxy, fluorinated The use of various adhesive materials such as acrylic is preferred. Of these, silicone and acrylic are particularly preferable from the viewpoint of environmental resistance and adhesiveness. Further, the adhesive force and wettability may be appropriately adjusted by adding a cross-linking agent, an additive, a softening agent, a tackifier, and the like, and water resistance, moisture resistance, and heat resistance may be added.

  In the refractive index matching body 11, the refractive index matching between the refractive index matching body 11 and the optical transmission medium refers to a degree of approximation between the refractive index of the refractive index matching body 11 and the refractive index of the optical transmission medium. Therefore, the refractive index of the refractive index matching body 11 is not particularly limited as long as it is close to the refractive index of the optical transmission medium. However, the difference in refractive index is ± 0.1 in terms of transmission loss due to avoidance of Fresnel reflection. Is preferably within 0.05, and particularly preferably within 0.05. When the difference between the refractive index of the optical transmission medium and the refractive index of the connected optical fiber 9 or optical component is large, the average value of these refractive indexes and the refractive index of the refractive index matching body 11 are within the above range. It is preferable to be within.

  Furthermore, the refractive index matching body 11 is composed of a single layer. This means that there is no interface where different materials are in contact with each other as in the case of a plurality of layers, and it does not exclude a system that is uniformly mixed in the wavelength order of light. That is, the refractive index matching body 11 has a very simple configuration composed of a single layer having adhesiveness. By using such a single layer structure member, light reflection does not occur. A transmission medium or the like can be connected, and a low-loss connection can be performed.

  Further, even if there are burrs or the like on the surface of the optical transmission medium, the refractive index matching member 11 is hardly damaged and has wettability on the surface, so that it can be easily adhered to the surface of the optical transmission medium. Moreover, the adhesiveness to the optical transmission medium or the like can be maintained by having an adhesive force on the surface. In addition, it is not necessary to apply an excessive pressing force when the optical transmission medium or the like is brought into close contact, and there is no possibility that the optical transmission medium is broken or damaged. Moreover, by having removability, it can be used repeatedly even if it is attached and detached a plurality of times.

Next, a method for manufacturing the optical fiber 10 with a refractive index matching body will be described.
First, the optical fiber 2 is held in a charged state by an electrostatic chuck 21 described later, while the refractive index matching body 11 is held as a solution (hereinafter referred to as a liquid refractive index matching body 12) by mixing with a solvent. Then, by bringing the end face of the optical fiber 2 charged with static electricity due to electrification close to the liquid surface (interface) of the liquid refractive index matching body 12, the liquid surface of the liquid refractive index matching body 12 is made optical fiber by the Coulomb force of the static electricity. 2, and the optical fiber 2 and the liquid refractive index matching body 12 are separated from each other, so that the liquid refractive index matching body 12 is applied and transferred only to the end face of the optical fiber 2. Then, by volatilizing the solvent of the liquid refractive index matching body 12 to make only the solute, an elastic gel-like adhesive refractive index matching body 11 film is formed on the end face of the optical fiber 2, and thus the refractive index matching body. An attached optical fiber 10 is configured.

Next, the manufacturing apparatus 20 for the optical fiber 10 with a refractive index matching body will be described.
As shown in FIG. 4, the manufacturing apparatus 20 holds an optical fiber 2 via a holder 22 and charges the electrostatic chuck (medium charging means) 21, and liquid refractive index matching at one end of the optical fiber 2. A holding device (matching body holding means) 26 that holds the body 12 and a moving mechanism (relative movement means) 29 that moves the end surface of the optical fiber 2 and the liquid surface of the liquid refractive index matching body 12 close to and away from each other are provided. Note that the optical fiber 2 may be placed directly or appropriately on the electrostatic chuck 21 without providing the holder 22. As shown in FIG. 8, the holder 22 and the electrostatic chuck 21 may be juxtaposed on the movable stage 31 so that a gap exists between the optical fiber 2 and the electrostatic chuck 21. The size of the gap is preferably about 100 μm to 200 μm.

  Referring also to FIG. 5, the electrostatic chuck 21 includes an electrode sheet plate 23 formed by coating a printed electrode sheet 23 a with a dielectric material such as polyamide on a metal substrate 24 via a highly insulating adhesive 25. It is configured as a bonded electrostatic dielectric device, and the optical fiber 2 is disposed on the electrostatic chuck 21 via a holder 22. In this state, the optical fiber 2 is held in the holder 22 in a charged state by applying a voltage to the printed electrode sheet 23a. The electrostatic chuck 21 is disposed on the movable stage 31, for example.

  The holding device 26 includes a holding wall (holding mechanism) 27 that forms a facing surface 27 a that faces the end face of the optical fiber 2 held by the electrostatic chuck 21, and a liquid refractive index matching body on the facing surface 27 a of the holding wall 27. And a dispenser 28 for supplying 12. The dispenser 28 appropriately supplies the liquid refractive index matching body 12 stored in the cylinder onto the facing surface 27a through the nozzle. The operation of the dispenser 28 is electronically controlled by a control circuit (not shown), for example. The holding device 26 is disposed on the fixed stage 32, for example. Here, as the holding mechanism for attaching the liquid refractive index matching body 12, a holding wall 27 having a simple device configuration is used. However, as the holding mechanism, in addition to the wall, a prismatic or cylindrical container or liquid can be used. A flat or curved surface to which the reservoir or the liquid refractive index matching body 12 is attached can also be used.

  The moving mechanism 29 is provided on the movable stage 31 side. For example, the movable stage 31 is fixed to the frame 33 by moving the movable stage 31 along the substantially horizontal direction with respect to the frame 33 by a combination of a motor and a ball screw mechanism. The fixed stage 32 is moved close to and away from the fixed stage 32. The operation of the moving mechanism 29 is electronically controlled by the control circuit. By the operation of the moving mechanism 29, the end surface of the optical fiber 2 held by the electrostatic chuck 21 and the liquid surface of the liquid refractive index matching body 12 attached to the holding wall 27 are separated from each other.

  When manufacturing the optical fiber 10 with a refractive index matching body in the manufacturing apparatus 20 having such a configuration, first, the optical fiber 2 is placed on the holder 22, and a voltage is applied to the electrostatic chuck 21 to place the optical fiber 2. While being held in a charged state, the dispenser 28 is operated to supply the liquid refractive index matching body 12 to the opposing surface 27a of the holding wall 27 to form a new liquid surface.

  Next, as shown in FIG. 6, the movable stage 31 is moved to the fixed stage 32 side by the operation of the moving mechanism 29, and the end surface 2a of the optical fiber 2 and the liquid surface 12a of the liquid refractive index matching body 12 on the opposing surface 27a Close. At this time, the liquid refractive index matching body 12 on the facing surface 27 a is attracted by the electrostatic coulomb force applied to the optical fiber 2, and the liquid surface 12 a is attracted to the end surface 2 a of the optical fiber 2. In the above description, after the optical fiber 2 is charged, the optical fiber and the liquid refractive index matching body 12 are brought close to each other. On the contrary, after the optical fiber 2 and the liquid refractive index matching body 12 are brought close to each other. The optical fiber may be charged.

  Thereafter, as shown in FIG. 7, the movable stage 31 is moved to the opposite side of the fixed stage 32 by the operation of the moving mechanism 29, and the end surface 2a of the optical fiber 2 is moved to the liquid surface of the liquid refractive index matching body 12 on the opposing surface 27a. When separated from 12 a, the liquid refractive index matching body 12 is applied and transferred to the end face 2 a of the optical fiber 2. The liquid refractive index matching body 12 thus formed is forcibly dried to volatilize the solvent, whereby the optical fiber 10 with the refractive index matching body in which the coating film of the refractive index matching body 11 is formed only on the end face of the optical fiber 2. Is configured.

Hereinafter, an example of the optical fiber 10 with a refractive index matching body manufactured using the manufacturing method (and the manufacturing apparatus 20) of the present embodiment will be further described.
First, as the optical fiber 2, an optical fiber core with an outer diameter of 250 μm and a cladding outer diameter of 125 μm manufactured by Furukawa Electric is prepared, and after removing the coating in the range of 20 mm from one end thereof, the optical fiber is bare, An optical fiber was cut at a portion 10 mm from the one end.

  In addition, an acrylic adhesive having a refractive index adjusted to 1.46 in accordance with the optical fiber 2 was prepared as the liquid refractive index matching body 12. Specifically, 30% ethyl acetate of acrylic resin comprising n-butyl acrylate / methyl acrylate / acrylic acid / 2-hydroxyethyl methacrylate copolymer (blending ratio = 82/15 / 2.7 / 0.3) To 100 parts of the solution, 1.0 part of Coronate L (manufactured by Nippon Polyurethane Industry Co., Ltd., trimethylolpropane tolylene diisocyanate adduct) was mixed to prepare a solution. The viscosity of the liquid refractive index matching body 12 is not particularly limited, but is preferably about 0.005 to 1 Pa · s.

Next, the optical fiber 2 is set in a Furukawa Electric holder 22, and the holder 22 is placed on the electrostatic chuck 21, and then a voltage (about 3 kV) is applied to the electrostatic chuck 21 to generate static electricity. The optical fiber 2 was held on the holder 22 and the optical fiber 2 was charged through the holder 22.
When the end face of the optical fiber 2 thus charged is brought close to the liquid surface of the liquid refractive index matching body 12 on the holding wall 27, the liquid refractive index matching body 12 is adsorbed on the end face of the optical fiber 2, and then light By separating the fiber 2 from the liquid refractive index matching body 12, a liquid refractive index matching body having a film thickness of about 5 to 50 μm (measured value) was applied and transferred to the end face of the optical fiber 2.

As described above, after the liquid refractive index matching body 12 is attached to the end face of the optical fiber 2, the optical fiber 2 is heated in an oven at about 70 ° C. for about 1.5 hours. By evaporating the solvent, a film of the adhesive refractive index matching body 11 having elasticity only on the end face of the optical fiber 2 was formed.
When this refractive index matching body 11 (measured film thickness 15.7 μm) and the end face of the uncut (unpolished) optical fiber 9 to be connected are abutted and connected, the return loss is 51.4 dB and the connection loss. Was 0.1 to 0.2 dB.
In this embodiment, the electrostatic chuck 21 which is a representative electrostatic dielectric device using an electric field is used. However, the same applies to a friction charging device such as a rotary friction device.

  As described above, in the manufacturing method of the optical fiber 10 with the refractive index matching body in the above embodiment, the end surface of the optical fiber 2 is charged with the liquid refractive index matching body (polymer material solution) 12 while the optical fiber 2 is charged. After the liquid refractive index matching body 12 is adsorbed on the end face of the optical fiber 2, the liquid refractive index matching body 12 is solidified to form the refractive index matching body 11.

According to this configuration, after the end surface of the optical fiber 2 and the liquid surface of the liquid refractive index matching body 12 are relatively close to each other, the liquid refractive index matching body 12 is adsorbed only on the end surface of the optical fiber 2, and then the liquid The refractive index matching body 12 is solidified to form the refractive index matching body 11, thereby simplifying the process by eliminating the need for exact alignment of the optical fiber 2, and the optical fiber 2 end face and the refractive index matching body 11. It is possible to effectively prevent air from entering between.
In addition, since the refractive index matching body 11 is formed only on the end face of the optical fiber 2, it is possible to ensure centering accuracy when the optical fiber 2 is incorporated into the optical connector 3. A good optical connection can be realized.

  Furthermore, the liquid refractive index matching body 12 is adsorbed to the end face of the optical fiber 2 by adjusting the charge amount of the optical fiber 2 and the movement amount of the liquid refractive index matching body 12 with respect to the liquid surface and the viscosity of the liquid refractive index matching body 12. Since the amount can be adjusted and the shape and thickness of the refractive index matching body 11 can be easily stabilized, the refractive index matching body 11 is provided on the end face of the optical fiber 2 with good reproducibility, and the cost can be reduced by simplifying the process. Can be planned.

  In addition, since the refractive index matching body 11 is provided only on the end face of the optical fiber 2, the occupation range becomes extremely small and the degree of freedom in design is improved, and the adhesive refractive index matching body 11 stains the side surface of the optical fiber 2. In addition, dirt from the surroundings does not adhere. Further, since the refractive index matching body 11 has a single structure, no light is reflected inside. In addition, it is not necessary to newly provide a special support means for holding the refractive index matching body 11, space saving can be achieved, and attachment to the existing optical connector is easy.

  Further, in the above manufacturing method, the refractive index matching body 11 has elasticity and adhesiveness, so that it flexibly deforms in correspondence with the end face shape of the optical fibers 2 and 9, and the optical fiber is in close contact with the end faces. This prevents the air from being pinched between 2 and 9, and can maintain this tight contact state, so that it is possible to make an optical connection with low loss and eliminate the need for an end face polishing step, and the restoring force can be used multiple times. An optical connection can be made.

  Here, in the manufacturing apparatus 20 of the optical fiber with a refractive index matching body, as the means for charging the optical fiber 2, the electrostatic chuck 21 that holds the optical fiber 2 in a charged state is used. It is possible to charge and hold the fiber 2 only by placing it, and it is possible to reduce the cost by simplifying the apparatus itself and the process.

  In the manufacturing apparatus 20, the means for holding the liquid refractive index matching body 12 supplies the holding wall 27 to which the liquid refractive index matching body 12 is attached, and supplies the liquid refractive index matching body 12 to the holding wall 27. By having the dispenser 28, the liquid level of the liquid refractive index matching body 12 can be kept new at all times, and the liquid refractive index matching body 12 can be secured to the end face of the optical fiber 2 by preventing the liquid surface from solidifying. Can be adsorbed well.

Note that the present invention is not limited to the above-described embodiment. For example, a charging unit that charges the optical fiber 2 and a holding unit that holds the optical fiber 2 are separately provided. The liquid refractive index matching body 12 relative to the liquid surface and the means for supplying the liquid refractive index matching body 12 to the holding wall 27 are manually operated, or the liquid refractive index matching body 12 is moved relative to the optical fiber 2. For example, the optical fiber 2 and the liquid refractive index matching body 12 may be configured to approach and separate from each other along the vertical direction. At this time, the means for holding the liquid refractive index matching body 12 has, for example, a configuration in which the liquid refractive index matching body 12 is dropped on a horizontal holding surface, or a configuration in which the liquid refractive index matching body 12 is stored in a container. It may be.
In addition, the liquid refractive index matching body 12 can be applied and transferred uniformly to a large number of optical fibers 2 at once. In addition, since the liquid refractive index matching body 12 is a solution of the refractive index matching body 11, the process for solidifying the liquid refractive index matching body 12 can be simplified to reduce the cost. Further, since the liquid refractive index matching body 12 is provided on the end face of the optical fiber 2, the vaporization property of the solvent is improved and it is easy to solidify.
In the above embodiment, the optical fiber is charged in advance, but the liquid refractive index matching member may be charged in advance. Moreover, you may charge beforehand so that both may have a reverse charge. In addition, the configuration in the above embodiment is an example, and can be applied to a method of forming a polymer material coating on an optical transmission medium other than an optical fiber, an optical component, and a fiber-like dielectric such as glass, ceramic, and plastic. Needless to say, various modifications can be made without departing from the scope of the invention.

2 Optical fiber (optical transmission medium)
10 Optical fiber with refractive index matching body (optical connection component)
DESCRIPTION OF SYMBOLS 11 Refractive index matching body 12 Liquid refractive index matching body 20 Manufacturing apparatus 21 Electrostatic chuck (medium charging means, electrostatic dielectric apparatus)
26 Holding device (Alignment body holding means)
27 Retaining wall (holding mechanism)
28 Dispenser
29 Movement mechanism (relative movement means)

Claims (7)

In an apparatus for manufacturing an optical connecting part in which an end face of an optical transmission medium is provided with a refractive index matching body, the apparatus includes a medium charging unit that charges the optical transmission medium, and a matching body holding unit that holds a liquid refractive index matching body , The liquid refractive index matching body held by the matching body holding means is adsorbed to an end face of the optical transmission medium charged by the medium charging means, and the adsorbed liquid refractive index matching body is solidified to cause the refractive index. An apparatus for manufacturing an optical connecting component, characterized by being a matching body .   The apparatus for manufacturing an optical connection component according to claim 1, further comprising a relative moving unit that moves an end surface of the optical transmission medium and a liquid surface of the liquid refractive index matching body close to and away from each other.   3. The medium charging means is an electrostatic dielectric device composed of an electrode and a dielectric, and the electrostatic dielectric device holds the optical transmission medium in a charged state. An apparatus for manufacturing an optical connecting component according to 1.   4. The apparatus for manufacturing an optical connection component according to claim 3, wherein the medium charging unit is an electrostatic chuck that holds the optical transmission medium in a charged state.   The apparatus for manufacturing an optical connection component according to claim 1, wherein the medium charging unit is a friction charging device that holds the optical transmission medium in a charged state.   The matching body holding means includes a holding mechanism for attaching the liquid refractive index matching body, and a feeder for supplying the liquid refractive index matching body to the holding mechanism. 6. The apparatus for manufacturing an optical connecting component according to any one of 5 above.   The apparatus for manufacturing an optical connection component according to claim 6, wherein the holding mechanism is a holding wall.

Images