CN216927161U

CN216927161U - Optical fiber adapter, optical receiver and optical fiber interface structure

Info

Publication number: CN216927161U
Application number: CN202123276862.1U
Authority: CN
Inventors: 徐虎; 刘宏亮; 陈方均; 杨彦伟
Original assignee: Core Technology Shenzhen Co ltd
Current assignee: Core Technology Shenzhen Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-08
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses an optical fiber adapter which comprises a structural part and a sleeve, wherein the sleeve is arranged inside the structural part, the structural part is provided with a positioning window, and an optical fiber can be embedded into the sleeve and is aligned to the positioning window. The utility model also discloses an optical receiver and an optical fiber interface structure. The utility model has simple structure and can reduce the optical transmission loss.

Description

Optical fiber adapter, optical receiver and optical fiber interface structure

Technical Field

The utility model relates to the technical field of photoelectric conversion devices, in particular to an optical fiber adapter, an optical receiver and an optical fiber interface structure.

Background

The light receiving device generally comprises a base, a light detection chip, an optical element and an optical fiber adapter, wherein the optical fiber adapter comprises a structural member, a ceramic ferrule and an optical fiber. The external optical fiber is connected with the ceramic inserting core through the optical fiber connector or the optical fiber, is connected into the optical fiber adapter of the optical receiving device, conducts optical signals through the optical fiber in the optical fiber adapter, and then irradiates the optical detection chip through the optical element. When the optical fiber is changed from the conventional 125um to the outer diameter of 230um,330um,430um or larger, the process tolerance precision between the ceramic ferrules is different, so that the external optical fiber passes through the optical fiber connector or the optical fiber connection ceramic ferrule, and after the external optical fiber is connected into the optical fiber adapter of the optical receiver, the optical transmission loss becomes large, and the optical-electrical responsivity of the whole device is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an optical fiber adapter, an optical receiver and an optical fiber interface structure which have simple structures and can reduce optical transmission loss.

In order to solve the technical problems, the utility model adopts a technical scheme that: an optical fiber adapter is provided, comprising a structural member and a sleeve, wherein the sleeve is arranged inside the structural member, the structural member is provided with a positioning window, and an optical fiber can be embedded into the sleeve and aligned with the positioning window.

In order to solve the technical problem, the utility model adopts another technical scheme that: there is provided an optical receiver comprising a fibre optic adapter as described above.

In order to solve the technical problem, the utility model adopts another technical scheme that: there is provided a fibre optic interface structure comprising an optical receiver as described above.

The optical fiber adapter of the utility model omits the traditional ferrule structure, and the optical fiber can automatically align to the positioning window after being embedded into the sleeve, thereby avoiding the trouble that the traditional ferrule structure needs to carry out optical fiber matching alignment. When the sizes of the optical fibers are different, the traditional ferrule structure needs to customize the matched ferrule structure, the optical fiber ferrule structure can be directly used, the matched ferrule structure does not need to be customized, the material cost is saved, the optical fiber ferrule structure is applicable to the optical fibers with different sizes, the application of large-size optical fibers is facilitated, the mode of aligning the ferrule structure is omitted, the optical transmission loss can be avoided after the optical fibers are embedded, and the photoelectric transmission efficiency is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings that are needed to be used in the present invention will be briefly described below, it being understood that the following drawings only show some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for a person skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a fiber optic adapter according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an optical receiver according to a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an optical fiber interface structure according to a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a connection patch cord of a fiber interface structure according to a third embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like reference numerals represent like elements in the drawings. It is apparent that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the embodiments of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the utility model. As used in the description of embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a fiber optic adapter according to a first embodiment of the present invention.

The utility model provides an optical fiber adapter 60, which comprises a structural member 10 and a sleeve 20, wherein the sleeve 20 is arranged inside the structural member 10, the structural member 10 is provided with a positioning window 13, and an optical fiber 73 can be embedded into the sleeve 20 and aligned with the positioning window 13.

Further, the structure is equipped with inlays the chamber, inlay the chamber and seted up the opening, the sleeve sets up inlay the intracavity, positioning window with inlay the chamber intercommunication.

Understandably, the sleeve 20 is inlaid in the inlay cavity 11, the inlay cavity 11 has an opening 12, the opening 12 is trapezoidal, on one hand, the installation of the sleeve 20 is facilitated, and on the other hand, the entry of the optical fiber 73 is facilitated.

Furthermore, the structural member 10 is further provided with a positioning surface 14, and the positioning surface 14 is located at the back of the positioning window 13.

Further, the inlay cavity 11 is opened with an opening 12.

Further, the positioning window 13 is trumpet-shaped.

Understandably, be provided with location window 13 on the structure 10, location window is the loudspeaker form and is favorable to the light to throw away, can be used to optic fibre 73 and get into and throw light to inside from location window 13 after inlaying chamber 11, and locating surface 14 is the chamber wall of inlaying chamber 11, and sleeve 20's one end can butt locating surface 14 when inlaying in inlaying chamber 11.

Further, the sleeve 20 is provided with a fiber channel 21.

It should be noted that, the size of the optical fiber channel is larger than the size of the positioning window 13, when the sleeve 20 abuts against the positioning surface 14 and the optical fiber 73 is accessed, the optical fiber 73 is located in the sleeve 20, and one end of the optical fiber 73 located in the sleeve 20 also abuts against the positioning surface 14, and projects light to the inside from the positioning window 13, the sizes of the positioning window 13 and the sleeve 20 are set in advance according to requirements, and there is no need to perform alignment of the conventional ferrule.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an optical receiver according to a second embodiment of the present invention.

The utility model provides an optical receiver, which comprises a base 30, an optical detection chip 40, an optical element 50 and the optical fiber adapter 60, wherein the optical detection chip 40, the optical element 50 and the optical fiber adapter 60 are installed on the base 30.

According to the optical receiver provided by the utility model, the optical fiber adapter 60 omits a traditional ferrule structure, after the optical fiber 73 enters the base 30 through the optical fiber adapter 60, an optical signal is directly projected to the optical detection chip 40 through the optical element 50, the trouble that the matched ferrule structures of the optical fibers 73 with different sizes need to be customized is avoided while the structure is optimized, and the material cost is saved.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of an optical fiber interface structure according to a third embodiment of the present invention, and fig. 4 is a schematic structural diagram of a connection jumper of the optical fiber interface structure according to the third embodiment of the present invention.

The utility model provides an optical fiber interface structure, which comprises a base 30, an optical detection chip 40, an optical element 50, a connection jumper wire 70 and the optical fiber adapter 60, wherein the optical detection chip 40, the optical element 50 and the optical fiber adapter 60 are installed on the base 30, and the connection jumper wire 70 is detachably connected with the optical fiber adapter 60.

The connecting jumper 70 comprises a joint 71, a ferrule 72 and an optical fiber 73, wherein one end of the ferrule 72 is embedded on the joint 71, one end of the optical fiber 73 is inserted into the ferrule 72, and the other end of the optical fiber 73 extends out of the other end of the joint 71.

According to the optical fiber interface structure provided by the utility model, the traditional ferrule structure of the optical fiber adapter 60 is omitted, the optical fiber 73 is connected into the optical fiber adapter 60 through the connecting jumper wire 70, the optical signal is directly projected to the optical detection chip 40 through the optical element 50, after the connecting jumper wire 70 is connected with the optical fiber adapter 60, the optical fiber 73 in the ferrule structure in the optical fiber adapter 60 does not need to be matched and aligned, the connecting jumper wire 70 is adopted to replace the traditional pigtail to connect the optical fiber 73, the optical fiber interface structure is suitable for the optical fibers 73 with different sizes, and the application of the optical fiber 73 with large size is facilitated. Even if the size of the optical fiber changes or the size of the optical fiber is larger, the loss of optical transmission can be avoided, and the photoelectric transmission efficiency is improved.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present 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 defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, while the utility model has been described with respect to the above-described embodiments, it will be understood that the utility model is not limited thereto but may be embodied with various modifications and changes.

While the utility model has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An optical fibre adapter, characterized in that it comprises a structural part (10) and a sleeve (20), said sleeve (20) being arranged inside said structural part (10), said structural part (10) being provided with a positioning window (13), an optical fibre being insertable into said sleeve (20) and aligned with said positioning window (13).

2. The fiber optic adapter of claim 1, wherein the structural member (10) is provided with a inlay cavity (11), the sleeve (20) is disposed within the inlay cavity (11), and the positioning window (13) is in communication with the inlay cavity (11).

3. Fiber optic adapter according to claim 2, characterized in that the structural part (10) is further provided with a positioning face (14), the positioning face (14) being located at the back of the positioning window (13).

4. A fiber optic adapter according to claim 3, wherein the inlay cavity (11) is provided with an opening (12).

5. Fiber optic adapter according to claim 1, characterized in that the positioning window (13) is flared.

6. A fibre optic adapter according to claim 1, wherein the sleeve (20) is provided with a fibre channel (21).

7. An optical receiver, characterized in that it comprises a fiber optic adapter (60) according to any one of claims 1 to 6.

8. The optical receiver of claim 7, further comprising a base (30), a light detecting chip (40), and an optical element (50), the light detecting chip (40), the optical element (50), and a fiber optic adapter (60) being mounted on the base (30).

9. An optical fiber interface structure comprising an optical receiver according to any one of claims 7 to 8.

10. The fiber optic interface structure of claim 9, further comprising a connection jumper (70), wherein the connection jumper (70) comprises a splice (71), a ferrule (72), and an optical fiber (73), wherein one end of the ferrule (72) is mounted on the splice (71), one end of the optical fiber (73) is inserted into the ferrule (72), the other end of the optical fiber (73) extends out from the other end of the splice (71), and the connection jumper (70) is detachably connected to the fiber optic adapter (60).