CN213091957U

CN213091957U - Optical fiber coupling support, connecting structure and laser

Info

Publication number: CN213091957U
Application number: CN202022417667.5U
Authority: CN
Inventors: 周斌; 邢明明
Original assignee: Xi'an Bogao Photoelectric Technology Co ltd
Current assignee: Xi'an Bogao Photoelectric Technology Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-04-30
Anticipated expiration: 2030-10-27

Abstract

The utility model belongs to the laser field, concretely relates to fiber coupling support, connection structure and laser instrument. The optical fiber coupling support comprises a lens support and a connecting support, wherein a first through stepped hole is formed in the connecting support, the lens support is arranged at one end, with the smaller diameter, of the stepped hole, a connecting position, a laser receiving channel and a laser emitting channel are arranged on the lens support, the laser receiving channel is arranged on one side, close to the connecting support, of the connecting position, the laser emitting channel is arranged on one side, far away from the connecting support, of the connecting position, and the laser receiving channel, the connecting position and the laser emitting channel are communicated; the connecting position is coaxial with the step hole I. The utility model discloses a set up the connection position of lens support coaxial with the step hole of linking bridge, just can guarantee that lens and optical fiber splice are coaxial, make laser light source have higher axiality.

Description

Optical fiber coupling support, connecting structure and laser

Technical Field

The utility model belongs to the laser field, concretely relates to fiber coupling support, connection structure and laser instrument.

Background

A fiber coupled laser is a laser in which a laser light source is coupled into one end of an optical fiber and emits light through the other end of the optical fiber. Coupling refers to the process of subjecting a light source to certain adjustment operations, even assisted by certain optical components, and finally making the light emitted by the light source enter an optical fiber.

The laser light source emits laser, the laser is focused by the coupling lens, and the focused light spot enters the optical fiber by adjusting the position of the coupling lens.

The fiber coupled laser is widely applied in various industries, and compared with solid lasers, gas lasers, fiber lasers and other types of lasers, the fiber coupled laser has the characteristics of high electro-optic conversion efficiency, long service life, capability of being directly modulated and the like.

However, since the optical fiber used in the optical fiber coupled laser is flexible and thin, the position of the light exit of the optical fiber connector formed by a plurality of optical fibers needs to be assembled and debugged during assembly, so as to achieve better coaxiality.

SUMMERY OF THE UTILITY MODEL

The utility model provides an optical fiber coupling support, connection structure and laser instrument. The utility model discloses a set up the connection position of lens support coaxial with the step hole of linking bridge, just can guarantee that lens and optical fiber splice are coaxial, make laser light source have higher axiality.

The utility model discloses a following technical scheme realizes:

an optical fiber coupling support comprises a lens support and a connecting support, wherein a first through stepped hole is formed in the connecting support, the lens support is arranged at one end, with the smaller diameter, of the stepped hole, a connecting position, a laser receiving channel and a laser emitting channel are arranged on the lens support, the laser receiving channel is arranged on one side, close to the connecting support, of the connecting position, the laser emitting channel is arranged on one side, far away from the connecting support, of the connecting position, and the laser receiving channel, the connecting position and the laser emitting channel are communicated; the connecting position is coaxial with the step hole I.

Further, the lens support and the connecting support are integrally formed.

Further, the lens support is provided with a second stepped hole, the section of the second stepped hole with the larger diameter comprises a laser emitting channel and a connecting position, and the section of the second stepped hole with the smaller diameter is a laser receiving channel.

An optical fiber coupling connection structure comprises the support and an optical fiber connector, wherein the optical fiber connector is in interference fit with one end, with the larger diameter, of a stepped hole.

The optical fiber connector further comprises a connecting ring, the outer surface of the connecting ring is in interference fit with one end of the stepped hole with a larger diameter, and the inner surface of the connecting ring is in interference fit with the optical fiber connector.

Further, the connecting position is provided with a collimating lens.

An optical fiber coupling laser comprises the connecting structure and a light source coupling mechanism, wherein the light source coupling mechanism couples a laser source into an optical fiber joint.

Adopt above-mentioned technical scheme, the utility model has the advantages of as follows:

1. the utility model discloses a set up the connection position of lens support coaxial with the step hole of linking bridge, just can guarantee that lens and optical fiber splice are coaxial, make laser light source have higher axiality.

2. The utility model has the advantages of simple and compact structure, good coaxiality, low cost, batch production and the like.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an optical fiber coupling bracket according to the present invention;

fig. 2 is a schematic structural diagram of an optical fiber coupling connection structure according to the present invention;

FIG. 3 is a first schematic structural diagram of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the second embodiment of the present invention;

fig. 5 is a third schematic structural view of the embodiment of the present invention;

fig. 6 is a fourth schematic structural diagram of the embodiment of the present invention;

in the drawings: 10. the device comprises a lens support 11, a connecting position 12, a laser receiving channel 13, a laser emitting channel 14, a step hole II, a connecting support 20, a step hole I, a step hole 30, a connecting ring 40, an optical fiber connector 50, a collimating lens 60, a light source coupling mechanism 61, a laser light source 62, a coupling lens 70 and a shell.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1, the present embodiment provides an optical fiber coupling bracket, which includes a lens bracket 10 and a connecting bracket 20, wherein a first through stepped hole 21 is formed in the connecting bracket 20, the lens bracket 10 is disposed at one end of the first stepped hole 21 with a smaller diameter, a connecting position 11, a laser receiving channel 12 and a laser emitting channel 13 are disposed on the lens bracket 10, the laser receiving channel 12 is disposed at one side of the connecting position 11 close to the connecting bracket 20, the laser emitting channel 13 is disposed at one side of the connecting position 11 away from the connecting bracket 20, and the laser receiving channel 12, the connecting position 11 and the laser emitting channel 13 are communicated; the connecting position 11 is coaxial with the first stepped hole 21.

The connection position 11 is coaxial with the first stepped hole 21, which means that the central axis of the connection position 11 facing the first stepped hole 21 is collinear with the central axis of the first stepped hole 21.

The special structure and shape ensures that the lens is coaxial with the optical fiber connector 40 by directly mounting the lens and the optical fiber connector 40.

The coaxiality, also called concentricity, of the light source refers to the degree of coincidence of the directional axis of transmission of the light source with the mechanical central axis of the assembly position of the structural member.

The end, with the larger diameter, of the first step hole 21 is used for connecting the optical fiber connector 40, the optical fiber connector 40 is in interference fit with the first step hole 21, and the distance between the light outlet of the optical fiber connector 40 and the lens is adjusted by extending and contracting the optical fiber connector 40 in the first step hole 21; the step hole I21 is arranged to limit the telescopic limit position of the optical fiber connector 40; and when the optical fiber connector 40 needs to be arranged at the step of the first stepped hole 21 (namely, the position is the required distance), the optical fiber connector 40 can be quickly positioned and assembled through the action of the first stepped hole 21.

Further, the lens holder 10 is integrally formed with the connecting holder 20.

As shown in fig. 4, further, the lens holder 10 is provided with a second stepped hole 14, a section of the second stepped hole 14 with a larger diameter includes the laser emitting channel 13 and the connecting position 11, and a section of the second stepped hole 14 with a smaller diameter is the laser receiving channel 12.

And a second step hole 14 is arranged, so that the lens can be conveniently installed, and the lens is installed at the step of the second step hole 14.

As shown in fig. 5, preferably, the lens holder 10 is integrally formed with the connecting holder 20, and the diameter of the hole with the smaller diameter of the first stepped hole 21 is equal to the diameter of the hole with the smaller diameter of the second stepped hole 14.

The structure is more convenient to process and is more beneficial to ensuring the coaxiality. If a column is used, a small diameter through hole is formed in the middle, and then two larger diameter holes are formed at the two ends.

As shown in fig. 2 and fig. 3, the present embodiment provides an optical fiber coupling connection structure, which includes the above-mentioned bracket, and further includes an optical fiber connector 40, where the optical fiber connector 40 is in interference fit with one end of the first stepped hole 21 with a larger diameter. The connection is realized in an interference fit mode, so that the connection is convenient, and the position of the optical fiber connector 40 is also convenient to adjust.

In the prior art, the optical fiber connector 40 is fixed by screws, and the connection mode has the disadvantages of complex installation, low installation efficiency and increased cost; and when the position of the optical fiber connector 40 needs to be adjusted, the screw needs to be taken down first, and the adjustment is also complicated.

Further, the optical fiber connector further comprises a connecting ring 30, wherein the outer surface of the connecting ring 30 is in interference fit with one end with the larger diameter of the first stepped hole 21, and the inner surface of the connecting ring 30 is in interference fit with the optical fiber connector 40. Namely, the connection ring 30 is arranged in the first stepped hole 21, and the optical fiber connector 40 is arranged in the connection ring 30 and connected with each other by interference fit.

By arranging the connection ring 30, the use of various optical fiber connectors 40 can be satisfied by replacing the connection rings 30 with different inner diameters under the condition that the connection brackets 20 are produced in large scale; such as ST fiber splices, FC fiber splices.

Further, the connection site 11 is provided with a collimating lens 50.

The present embodiment provides a fiber coupled laser, which includes the above-mentioned connection structure, and includes a light source coupling mechanism 60, where the light source coupling mechanism 60 couples a laser source into the fiber joint 40.

As shown in fig. 6, the light source coupling mechanism 60 includes a laser light source 61 and a coupling lens 62.

The fiber coupled laser can realize a fiber laser light source 61 with better coaxiality.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An optical fiber coupling bracket, comprising: the laser device comprises a lens support (10) and a connecting support (20), wherein a first through step hole (21) is formed in the connecting support (20), the lens support (10) is arranged at the end, with the smaller diameter, of the first step hole (21), a connecting position (11), a laser receiving channel (12) and a laser emitting channel (13) are arranged on the lens support (10), the laser receiving channel (12) is arranged on one side, close to the connecting support (20), of the connecting position (11), the laser emitting channel (13) is arranged on one side, far away from the connecting support (20), of the connecting position (11), and the laser receiving channel (12), the connecting position (11) and the laser emitting channel (13) are communicated; the connecting position (11) is coaxial with the first stepped hole (21).

2. A fiber coupling mount according to claim 1, wherein: the lens support (10) and the connecting support (20) are integrally formed.

3. A fiber coupling mount according to claim 1, wherein: the lens support (10) is provided with a second step hole (14), the section of the second step hole (14) with the larger diameter comprises a laser emitting channel (13) and a connecting position (11), and the section of the second step hole (14) with the smaller diameter is a laser receiving channel (12).

4. A fiber-coupled connection structure comprising a support according to any one of claims 1 to 3, wherein: the optical fiber connector (40) is in interference fit with one end of the first stepped hole (21) with the larger diameter.

5. An optical fiber coupling connection structure according to claim 4, wherein: the optical fiber connector further comprises a connecting ring (30), the outer surface of the connecting ring (30) is in interference fit with one end of the first stepped hole (21) with the larger diameter, and the inner surface of the connecting ring (30) is in interference fit with the optical fiber connector (40).

6. An optical fiber coupling connection structure as claimed in claim 4 or 5, wherein: the connecting position (11) is provided with a collimating lens (50).

7. A fiber coupled laser comprising the connection structure of any one of claims 4 to 6, wherein: a light source coupling mechanism (60) is included, the light source coupling mechanism (60) coupling a laser source into the fiber optic splice (40).