JP2007178663A - Collimator lens, optical component, and manufacturing method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure reliability of joining strength and a jointing state with respect to a splicing technique for optical fiber and collimator lens. <P>SOLUTION: The collimator lens 101, structured such that a groove part 102 holding the optical fiber 120 is exposed, is prepared, and the optical fiber, having its optical fiber main body exposed by peeling a coating at the tip, is arranged at the groove part 102 and disposed. After the optical fiber positioning is finished, the optical fiber body 120a and collimator lens 101 are fused by discharging, and curing resin 140 is dripped and cured to complete the splicing of the optical fiber 120 and collimator lens 101. According to this structure, resin molding is carried out, while a coating 120b part of the optical fiber 120 is held at the groove part 102, so the optical fiber 120 is fixed firmly to the collimator lens 101 and high reliability is obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for bonding an optical fiber to an optical component used for optical communication, optical information processing, and the like, and particularly to a technique for bonding a collimator lens and an optical fiber.

  In the field of optical communication, various optical modules such as an optical switch, an optical isolator, an optical circulator, an optical attenuator, and an optical demultiplexer are required. These optical modules are used in combination with so-called optical fiber collimators.

  The optical fiber collimator has a structure in which an optical fiber is bonded to a collimator lens. The optical fiber collimator converts the light beam emitted from the end face of the optical fiber into a parallel light beam by a collimator lens and guides it into the optical module. Conversely, the parallel light beam that has passed through the optical module is converged by the collimator lens and guided to the optical fiber. It has a function.

  An optical fiber collimator is desired to be drastically reduced in price, and as a technology that meets this requirement, a method of directly joining an optical fiber and a collimator lens to reduce the number of parts has been proposed (for example, non-patent). Reference 1).

  In this method, after aligning the optical fiber and the collimator lens, discharge is performed in the vicinity of the joint, and both are welded. At this time, since it is necessary to heat the joining portion by electric discharge, it is necessary to peel off the protective coating at the tip of the optical fiber joined to the collimator lens and to expose the optical fiber main body at that portion. And after completion | finish of joining operation, the resin hardening | curing agent was dripped at the junction part and the exposed part of the optical fiber, and it was solidified and reinforced.

  Hereinafter, an example of the process of reinforcing with the resin curing agent will be described. FIG. 6 is a process diagram for explaining a joining process of an optical fiber and a collimator lens in the prior art. First, as shown in FIGS. 6A and 6B, the position of the collimator lens 302 and the optical fiber 301 where the optical fiber main body 301a (quartz fiber) is exposed by removing the coating (resin coating) 301b at the tip portion. Align. In this alignment, both optical axes are aligned, and the end of the optical fiber 301 is aligned with the focal position of the collimator lens 302.

  Next, the needle-like electrode is brought close to the joint portion 304, and discharge is performed, so that the optical fiber main body 301a and the collimator lens 302 are joined by welding. In this state, although both of them are fused, the contact area is small, and the optical fiber body 301a can be easily detached from the joint portion 304 by lightly bending. Therefore, a curable resin such as an ultraviolet curable resin is used. The resin mold 305 is used for reinforcement. Thus, the optical fiber collimator shown in FIG. 6C is completed.

Toshiaki Takahara “Packaging Technology for Ultra-Small Fiber Collimator”, 92nd Micro-Optics and 6th System Photonics Joint Study Group, 2004

  However, the method as shown in FIG. 6 has a problem that the reinforcement and hardening by the mold using the cured resin is still unreliable. That is, although the structure shown in FIG. 6C is reinforced by the resin mold 305, the strength of the joint between the optical fiber 301 and the collimator lens 302 is not sufficiently reliable, and the optical fiber 301 is not collimated during handling. There was a problem that the lens 302 was easily detached. As measures against this, methods such as further increasing the thickness of the resin mold 305, performing overcoating, and separately preparing and supporting a reinforcing member can be considered, but this is not appropriate because it increases the manufacturing cost.

  In such a background, an object of the present invention is to provide a technique capable of increasing the reliability of a joined state between an optical fiber and a collimator lens.

  According to a first aspect of the present invention, the collimator lens is provided with a groove portion that extends while being exposed along the optical axis and holds the optical fiber. According to the first aspect of the invention, a collimator lens having a structure in which a groove is formed on an extension line that matches the optical axis and the groove is exposed is used. Since this groove is formed at a position that coincides with the optical axis of the collimator lens, the optical fiber can be laid and held in this groove so that the approximate optical axis of the optical fiber and the collimator lens can be adjusted. . In addition, the optical fiber is held in the groove so that the optical fiber coating (skin) is in contact with the groove, and the state in which the optical fiber is held in the groove is fixed by an adhesive or the like. The lens and the optical fiber can be bonded firmly and reliably.

  In this joint structure, in a state where the optical fiber is joined to the collimator lens, the optical fiber is held and supported by the groove portion of the collimator lens at a predetermined length portion. For example, even if the optical fiber is bent slightly, it is narrow. It is possible to greatly reduce the possibility that the optical fiber is detached from the collimator lens because the force is not concentrated on the region. In addition, since the protective coating of the optical fiber is excellent in strength, flexibility, and compatibility with the adhesive, a structure in which the protective coating of the optical fiber is fixed in the groove makes it possible to connect the collimator lens and the optical fiber. The joining state can be made stronger.

  The cross-sectional shape of the groove is not particularly limited as long as it can hold the optical fiber effectively and stably, and examples thereof include a semicircle, an inverted triangle, a quadrangle, and an inverted pentagon. The depth of the groove is not particularly limited, but a depth (for example, about 1/3 radius to radius) where the optical fiber is buried to some extent is necessary to ensure stability. Moreover, when workability is taken into consideration, a deeper depth is not preferable.

  In the first aspect of the invention, it is preferable that the collimator lens has a configuration in which a discharge path is formed from the side surface direction to the joint between the optical fiber and the collimator lens. According to this aspect, in a state where the optical fiber is received and held in the groove of the collimator lens, the discharge can be effectively blown to the joint portion between the optical fiber tip and the collimator lens. Thereby, waste of discharge energy can be reduced, and the reliability and reproducibility of the fusion work by discharge can be increased. Examples of the discharge path include a groove orthogonal to the groove that receives the optical fiber, a groove that crosses the collimator lens, and an opening or a notch structure that extends from both sides of the collimator lens to the joint portion.

  In the first invention, it is preferable that the exposed portion is covered with a cover member in which a groove portion is formed at a position facing the groove portion in a state where the optical fiber is received in the groove portion of the collimator lens. According to this aspect, in a state where the optical fiber is fixed to the collimator lens, the optical fiber can be sandwiched between the groove on the collimator lens side and the groove on the cover member side. The holding and fixing function can be further enhanced.

  The cross-sectional shape of the groove portion of the cover member may be matched to the shape of the groove on the collimator lens side. It is important that the groove on the cover member side be aligned with the groove on the collimator lens side when the cover member is aligned with the collimator lens.

  The present invention can also be grasped as an optical component including the collimator lens of the first invention described above. The optical component includes an optical module using an optical fiber collimator, an optical fiber collimator, or a collimator lens. An optical module is an optical functional device that uses an optical fiber collimator as an optical signal input / output unit, and examples thereof include an optical switch, an optical isolator, an optical circulator, an optical attenuator, and an optical demultiplexer.

  The present invention can also be understood as a method for manufacturing an optical component. That is, the method of manufacturing an optical component according to the present invention includes disposing an optical fiber in the groove portion of a collimator lens that extends while being exposed along the optical axis and includes a groove portion for holding the optical fiber; and The method includes the steps of aligning an optical fiber and the collimator lens, bonding the optical fiber and the collimator lens, and fixing the coating of the optical fiber in the groove.

  According to the invention relating to the manufacturing method, since the optical fiber is received and held in the groove portion of the collimator lens in the aligned state, inconvenience that the aligned state is shifted in the subsequent discharge process is avoided. be able to. In the final fixed state, the optical fiber is held in the groove portion of the collimator lens together with the coating, and the optical fiber coating is directly held and fixed by the collimator lens. Therefore, the joining state of both can be made strong and reliable.

  The invention relating to the manufacturing method includes a manufacturing process for bonding an optical fiber to a collimator lens, and a manufacturing process for bonding an optical fiber to an optical module such as an optical switch, an optical isolator, an optical circulator, an optical attenuator, and an optical demultiplexer. Can be used.

  In the invention relating to the above manufacturing method, the step of fixing the film in the groove and the step of joining may be reversed. That is, the step of disposing an optical fiber in the groove portion of a collimator lens that extends while being exposed along the optical axis and has a groove portion for holding the optical fiber, and alignment of the optical fiber and the collimator lens And a step of fixing the coating of the optical fiber to the groove, and a step of bonding the optical fiber and the collimator lens.

  In the invention relating to the above manufacturing method, the collimator lens is formed with a discharge path from the lateral direction to the joint between the optical fiber and the collimator lens, and in the step of joining, welding by discharge using this discharge path is performed. It is preferable to adopt a structure.

  In the invention relating to the above manufacturing method, it is preferable that the optical fiber held in the groove portion of the collimator lens is covered with a cover member in which the groove portion is formed at a position opposite to the groove portion at or after the fixing step. According to this aspect, since the optical fiber is sandwiched and held between the groove portion of the collimator lens and the groove portion of the cover member, the bonding state between the optical fiber and the collimator lens can be made stronger and more reliable. .

  According to the present invention, since the optical fiber is held for a certain length by the collimator lens and the contact area between the two can be secured, it is possible to realize a structure in which the force is not concentrated on the welded portion between the two, The strength and reliability of the joined state with the collimator lens can be increased. In addition, by forming a discharge path in the collimator lens, it is possible to improve the reliability and workability of the joining operation between the optical fiber and the collimator lens by discharge. Moreover, the optical fiber held in the groove portion of the collimator lens is pressed and held by the cover member having the groove portion formed at a position facing the groove portion of the collimator lens, thereby further strengthening the joint structure between the collimator lens and the optical fiber. Can be.

1. First Embodiment FIG. 1 is a process diagram showing a process of bonding an optical fiber and a collimator lens using the present invention. First, in the present embodiment, a collimator lens 101 shown in FIG. The collimator lens 101 is formed by molding a borosilicate multi-component glass having a softening point of 607 ° C., and includes an objective lens 101a. The groove portion 102 along the optical axis is formed on the surface including the optical axis of the objective lens 101a.

  The cross-sectional shape of the groove part 102 is substantially semicircular, and the radius thereof is set to be slightly larger than the radius of the optical fiber (the radius including the covering part) described later. By doing so, the optical fiber holding effect by the groove portion 102 can be effectively exhibited, and a dimensional margin for performing the alignment operation described later is secured. Further, the objective lens 100 is optically designed so that the focal point is located at the abutting portion 102 a of the groove 102.

  In addition to the collimator lens 101 shown in FIG. 1A, an optical fiber 120 shown in FIG. 1B is prepared. The optical fiber 120 is processed in a state in which the coating 120b is removed at the tip portion and the optical fiber main body 120a is exposed. The exposed length of the optical fiber main body 120a is shorter than the length of the groove 102, and when the optical fiber main body 120a is disposed in the groove 102, the exposed tip of the optical fiber main body 120a contacts (or is close to) the collimator lens 101, and at the same time. The coating 120 b is in contact with the groove 102. The optical fiber main body 120a is a core portion having a function of transmitting an optical signal, and is usually composed of a material mainly composed of quartz.

  When the collimator lens 101 and the optical fiber 120 are prepared, the tip end side where the coating of the optical fiber 120 is peeled off is fitted into the groove 102 of the collimator lens main body 101, and the optical fiber 120 and the collimator lens main body 101a are aligned. At this time, a part of the coating 120b is received and received in the groove 102 (FIG. 1B).

  This alignment is performed in order to align the optical axes of the objective lens 100 and the optical fiber 120 of the collimator lens main body 101a and to position the tip of the optical fiber 120 at the focal position of the objective lens 100. Here, an optical multimeter, which is a test apparatus having a function of outputting laser light having a predetermined intensity and a predetermined wavelength and capable of accurately measuring the intensity of the input light, is used. That is, an optical multimeter (not shown) is connected to the other end of the optical fiber 120, the objective lens 100 is made to face a reflecting mirror (not shown), and test light is generated from the optical multimeter. At this time, the light beam from the objective lens 101a is allowed to enter a reflecting mirror (not shown) perpendicularly.

  Test light emitted from an optical multimeter (not shown) follows the optical fiber 120 → collimator lens body 101 → objective lens 101a → reflecting mirror (not shown) → reverse path, returns to the optical multimeter (not shown), and is detected there. In this state, the relative position of the optical fiber main body 120a with respect to the collimator lens main body 101 is finely adjusted so that the amount of detection light detected by the optical multimeter is maximized.

  When the alignment is completed, a needle-shaped electrode (not shown) is brought close to the vicinity of the tip of the optical fiber main body 120a, and discharge is performed to melt and expand the constituent material of the collimator lens 101 that contacts (or is close to) the optical fiber 120a. The optical fiber main body 120a and the collimator lens 101 are joined by welding. The joining by this discharge may be performed under the condition that both are melted.

  When the joining between the optical fiber main body 120a and the collimator lens 101 by the discharge is completed, the ultraviolet curable resin 140 is dropped and irradiated with ultraviolet rays to cure the structure, and the vicinity of the joining is covered with a resin mold to strengthen the structure. obtain. The coating 120 b of the optical fiber 120 and the optical fiber main body 120 a are fixed to the collimator lens 101 by the ultraviolet curable resin 140. Thus, the optical fiber collimator shown in FIG. 1C is completed.

  In this embodiment, since the coating 120b of the optical fiber 120 is held by the groove 102, it is easy to align the optical fiber 120 and the collimator lens 101. In particular, since the groove 102 is formed by molding, its positional accuracy and dimensional accuracy are high. Therefore, the groove part 102 functions as a positioning part of the optical fiber 120, and workability at the time of alignment can be improved.

  Further, as shown in FIG. 1C, since the molding with the ultraviolet curable resin is performed in a state where the coating 120b of the optical fiber 120 is held in the groove portion 102, the bonding strength between the optical fiber 120 and the collimator lens 101 is increased. Can be kept high. In particular, since the strength of the coating 120b is sufficiently high, a structure in which the optical fiber 120 is firmly fixed to the collimator lens 101 is obtained by forming the structure in which the coating 120b is held in the groove 102 and further reinforced by a resin mold. be able to. According to this bonding structure, for example, in the structure shown in FIG. 1C, when the collimator lens 101 is fixed and the optical fiber 120 is moved, the force is not concentrated on the portion welded by the above-described discharge. Is less likely to come off. That is, durability can be increased.

2. Second Embodiment FIG. 2 is a process diagram showing a process of bonding an optical fiber and a collimator lens. In this embodiment, a canopy member (cover) 130 is further added to the collimator lens 101 shown in FIG.

  The canopy member 130 has a structure that compensates for the vertically divided cylindrical portion of the collimator lens 101, and a groove 131 is formed along the optical axis of the collimator lens 101. The groove 131 is formed at a position facing the groove 102 and is complementary to the groove 102. These two grooves are combined to form a cylindrical space in which the optical fiber 120 is accommodated. That is, the groove 131 is substantially semicircular, and its radius is set to be slightly larger than the radius of the optical fiber 120 (the radius including the covering portion), and the light of the collimator lens 101 is located near the center of this semicircle. Designed to position the shaft. By doing so, it is possible to obtain a structure in which the groove 102 and the groove 131 are combined to form a cylindrical space in which the optical fiber 120 is held.

  In the present embodiment, the process up to the step of joining the collimator lens 101 and the optical fiber 120 by discharge is the same as in the case of the first embodiment. When the state in which the collimator lens 101 and the optical fiber 120 are joined by discharge is obtained, the groove 131 of the canopy member 130 is aligned with the optical fiber 120 and united with the collimator lens 101 as shown in FIG. At this time, a small amount of ultraviolet curable resin is adhered to the bonding surface to exert an adhesive force.

  In the optical fiber collimator shown in FIG. 2C obtained in this way, in addition to the superiority of the first embodiment, the optical fiber 120 is further pressed from above the coating 120b by the canopy member 130. The holding state on the collimator lens 101 can be further strengthened. In particular, since the coating 120b of the optical fiber 120 is fixed while being sandwiched from above and below by the groove 102 of the collimator lens 101 and the groove 131 of the canopy member 130, the optical fiber is collimated when the optical fiber 120 is routed. It is possible to effectively suppress the occurrence of inconveniences that come off the lens 101.

3. 3rd Embodiment FIG. 3: is process drawing which shows the process of joining an optical fiber and a collimator lens. The present embodiment relates to a configuration in which a discharge path for effectively discharging is provided in the configuration shown in the first embodiment.

  In the present embodiment, as shown in FIG. 3A, a groove 103 that is orthogonal to the optical axis of the collimator lens 101 is provided. The groove 103 is a groove that functions as a discharge path, and is formed at the same time when the collimator lens 101 is molded by molding. The groove 103 is deeper than the groove 102 and has a larger cross-sectional diameter than the groove 102. . Note that the groove 103 constituting the discharge path is preferably formed so as to extend from both side surfaces of the collimator lens 101 to the vicinity of the joining point of the optical fiber in order to effectively discharge.

  The manufacturing process is the same as that in the first embodiment, but the discharge needle shape is used so that the groove 103 becomes a discharge path when the tip of the optical fiber main body 120a and the collimator lens 101 are joined by discharge. The electrodes 104 a and 104 b are brought close to the groove 103 to discharge. According to this method, the constituent material of the collimator lens 101 having a high relative dielectric constant does not exist in the space where the discharge occurs, and the needle-like electrode can be brought close to the tip of the optical fiber body 120a. It can be carried out well, stably and with good controllability.

  When the discharge shown in FIG. 3 (B) is performed and the tip of the optical fiber 120a is joined to the collimator lens 101, the ultraviolet curable resin 140 is dropped, and the ultraviolet curable resin 140 is cured by irradiating ultraviolet rays. I do. Thus, an optical fiber collimator in which the optical fiber 120 is bonded to the collimator lens 101 can be obtained (FIG. 3C).

4). Fourth Embodiment FIG. 4 is a process diagram showing a process of bonding an optical fiber and a collimator lens. This embodiment is an example in which, in the configuration shown in the third embodiment, the canopy member 150 is further covered to improve the bonding strength between the optical fiber and the collimator lens.

  In the present embodiment, as shown in FIG. 4A, a canopy member 150 is prepared to be combined with the collimator lens 101 in which the discharge path groove 103 shown in FIG. 3A is formed. The canopy member 150 has the same function as the canopy member 130 of FIG. 2, and a groove portion 151 is formed at a position corresponding to the groove portion 102.

  In this configuration, after the step of performing the discharge shown in FIG. 3B, the canopy member 150 is covered with the collimator lens 101 using an ultraviolet curable resin as an adhesive, and further irradiated with ultraviolet rays. The lens 101 is bonded to obtain the state shown in FIG. By doing so, since the optical fiber 120 is reliably held by the collimator lens 101 and the canopy member 150 together with the coating 120b, the reliability of the joined state between the optical fiber 120 and the collimator lens 101 can be further increased.

  In the configuration using the canopy member 150, after the optical fiber 120 and the collimator lens 101 are aligned, the canopy member 150 is put on, the optical fiber 120 is fixed to the collimator lens 101, and then the groove 103 is used as a discharge path. The discharge may be performed using the optical fiber main body 120a and the collimator lens 101 to be joined.

5. Fifth Embodiment In this embodiment, an example in which the present invention is applied to an optical module is shown. FIG. 5 is a side view showing the structure of an example of an optical module using the present invention. FIG. 5A shows an example in which the structure illustrated in FIG. 1 is applied to an optical attenuator.

  An optical module 400 shown in FIG. 5A has a configuration in which a collimator lens 402, an optical attenuator element 403, and a collimator lens 404 are housed in a mold structure 401. In this example, in the collimator lens 402, a groove portion 402a that holds the optical fiber is formed in a portion along the optical axis, and in the collimator lens 404, a groove portion 404a that holds the optical fiber in a portion along the optical axis. Is formed. The groove portions 402a and 404a have the same function as the groove portion 102 in FIG.

  The joint structure of the optical fiber to the optical module 400 is the same as that shown in FIG. 1 for each of the collimator lenses 402a and 404a. In this structure, an optical fiber (not shown) from which the coating of the tip is removed is held in the grooves 402a and 404a of the collimator lenses 402 and 404 together with the coating, and the state is further solidified by an adhesive. According to this structure, the optical fiber 400 (not shown) and the optical module 400 can be firmly joined, and the reliability can be increased.

  In the structure shown in FIG. 5A, the optical fiber joined to the collimator lens may be covered using the canopy member (cover) 130 shown in FIG. By doing so, the bonding strength of the optical fiber to the optical module 400 and the reliability of the bonding state can be further increased.

  FIG. 5B shows an example in which the structure shown in FIG. 3 is applied to an optical module. An optical module 500 shown in FIG. 5B has a configuration in which a collimator lens 502, an optical attenuator element 503, and a collimator lens 405 are housed in a mold structure 501.

  In this example, in the collimator lens 502, a groove portion 502a for holding the optical fiber is formed at a portion along the optical axis, and a discharge path groove portion 502b orthogonal to the groove portion 502a at the abutting portion of the groove portion 502a. Is formed. Further, in the collimator lens 504, a groove portion 504a for holding the optical fiber is formed at a portion along the optical axis, and a groove portion 504b for a discharge path orthogonal to the groove portion 504a is formed at the abutting portion of the groove portion 504a. ing.

  The optical fiber is bonded to the optical module 500 shown in FIG. 5B by applying the process shown in FIG. 3 to each of the collimator lenses 502 and 504.

  In joining the optical fiber to the optical module shown in FIG. 5B, the canopy member (cover member) 150 shown in FIG. 4 may be covered with the optical fiber fixed to the grooves 502a and 504a. By doing so, the bonding strength of the optical fiber to the optical module 500 and the reliability of the bonding state can be further increased.

  Examples of the optical module include an optical switch, an optical isolator, an optical circulator, and an optical demultiplexer. These optical components have a device structure in which an optical fiber collimator is used as an input / output, and the present invention can be used for the optical fiber collimator portion.

  INDUSTRIAL APPLICABILITY The present invention can be used for a collimator lens constituting an optical fiber collimator, a technique for connecting an optical fiber to the collimator lens, and an optical component using the collimator lens.

It is process drawing which shows the process of joining an optical fiber to a collimator lens. It is process drawing which shows the process of joining an optical fiber to a collimator lens. It is process drawing which shows the process of joining an optical fiber to a collimator lens. It is process drawing which shows the process of joining an optical fiber to a collimator lens. It is a side view which shows an example of the structure of the optical module using this invention. It is process drawing explaining the joining process of the optical fiber and collimator lens in a prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Collimator lens, 101a ... Objective lens, 102 ... Groove part holding optical fiber, 102a ... Abutting part of groove part, 120 ... Optical fiber, 120a ... Optical fiber main body (optical fiber core wire), 120b ... Cover of optical fiber, DESCRIPTION OF SYMBOLS 130 ... Canopy member (cover member), 131 ... Groove part, 103 ... Groove part which comprises discharge path, 150 ... Canopy member, 151 ... Groove part, 301 ... Optical fiber, 302 ... Collimator lens, 301a ... Optical fiber main body (optical fiber core wire) ), 301b ... Coating of optical fiber, 305 ... resin mold, 400 ... optical module, 402 ... collimator lens, 402a ... groove for holding optical fiber, 403 ... optical attenuator element, 404 ... collimator lens, 404a ... holding optical fiber Groove portion 500, optical module 502, stiffness Tarenzu, grooves for holding the 502a ... optical fiber, the groove portion constituting the 502b ... discharge path 503 ... optical attenuator element, 504 ... collimator lens, a groove portion for holding the 504a ... optical fiber, the groove portion constituting the 504b ... discharge path.

Claims (8)

  A collimator lens comprising a groove for extending along an optical axis and holding an optical fiber.   The collimator lens according to claim 1, wherein a discharge path is formed from a side surface direction to a junction with the optical fiber. In a state where an optical fiber is received in the groove,
The collimator lens according to claim 1, wherein the exposed portion is covered with a cover member having a groove portion formed at a position facing the groove portion.   An optical component comprising the collimator lens according to claim 1. Extending the optical fiber along the optical axis, and disposing the optical fiber in the groove of the collimator lens having a groove for holding the optical fiber; and
Aligning the optical fiber and the collimator lens;
Bonding the optical fiber and the collimator lens;
A step of fixing the coating of the optical fiber in the groove. Extending the optical fiber along the optical axis, and disposing the optical fiber in the groove of the collimator lens having a groove for holding the optical fiber; and
Aligning the optical fiber and the collimator lens;
Fixing the coating of the optical fiber in the groove;
Bonding the optical fiber and the collimator lens;
An optical component manufacturing method comprising: In the collimator lens, a discharge path from the side surface direction to the joint between the optical fiber and the collimator lens is formed,
7. The method of manufacturing an optical component according to claim 5, wherein in the joining step, the optical fiber body and the collimator lens are welded by discharge using the discharge path. In the fixing step or thereafter,
The method of manufacturing an optical component according to claim 5, wherein the optical fiber held in the groove is covered with a cover member having a groove formed at a position facing the groove.

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