Optical assembly and optical module

Abstract

The application relates to the technical field of optical communication, and provides an optical assembly and an optical module. The application is designed to bear different sets of FA plugs of a transmitting assembly and a receiving assembly. The optical fiber array end faces on all the FA plugs constitute the optical fiber array end face on the FA base by inserting the different sets of FA plugs on the FA base. The FA base and an MT tail are butted to mutually couple the optical fiber array end face on the FA base and the optical fiber array end face of the MT tail, so that corresponding optical path transmission between the MT and the FA plugs is realized.

Description

Technical Field

[0001] This invention relates to the field of optical communication technology, and in particular to an optical component and optical module. Background Technology

[0002] In the field of optical communication, optical devices and modules often use MT-FA components. One end of the MT-FA component is an integrated mechanical transfer connector (MT), and the other end consists of several fiber arrays (FAs). Figure 1 As shown, a simplified structure of an MT-FA component is provided. The MT-FA component includes two receiving FA components and one transmitting FA component. The assembly and combination are very difficult and costly. At the same time, if any fiber or component fails during production or use, the entire MT-FA component will be scrapped, resulting in a high material loss rate.

[0003] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to avoid the complete scrapping of an optical device and reduce the material loss rate when some components in an optical device fail.

[0005] The present invention adopts the following technical solution: In a first aspect, an optical component is provided, including a standard MT11, an FA base 21, and at least two sets of FA plugs 31 each having an optical fiber array; wherein the optical fiber array on each set of the FA plugs 31 is used to carry a set of transmitting components or a set of receiving components. The FA plug 31 is inserted and fixed on the FA base 21, wherein the fiber array end faces on all the FA plugs 31 constitute the fiber array end faces on the FA base 21. The FA base 21 is connected to the tail of the MT11; The fiber array end face on the FA base 21 is coupled to the fiber array end face at the tail of the MT11.

[0006] Secondly, an optical module suitable for optical components is provided. The optical components include a standard MT11 and FA base 21, and at least two sets of FA plugs 31 respectively provided with fiber arrays; wherein, the fiber array on each set of FA plugs 31 is used to carry a set of transmitting components or a set of receiving components. The FA plug 31 is inserted and fixed on the FA base 21, wherein the fiber array end face of all the FA plugs 31 constitutes the fiber array end face of the FA base 21; wherein the fiber array end face of the FA base 21 is coupled to the fiber array end face of the tail of the MT11. Before being fixed to the optical module, the optical component is pre-embedded in the MPO standard interface housing; the MPO standard interface housing is set in the preset optical port slot of the optical module.

[0007] This invention designs different sets of FA plugs to carry transmitting and receiving components. By inserting the different sets of FA plugs into the FA base, the fiber array end faces on all the FA plugs constitute the fiber array end faces on the FA base. Then, the FA base and the MT tail are connected, thereby coupling the fiber array end faces on the FA base with the fiber array end faces at the MT tail, realizing the corresponding optical path transmission between the MT and each FA plug. With the above-mentioned independent sets of FA plugs, when there is a fiber outgoing fault on an FA plug, only the corresponding FA plug needs to be replaced and maintained. Other FA plugs and the MT will not be affected and do not need to be replaced, thereby improving the stability of structural maintenance and saving costs. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0009] Figure 1 This is a schematic diagram of a conventional optical component provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of an optical component provided in an embodiment of the present invention; Figure 3 This is a partially exploded schematic diagram of an optical component provided in an embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of an FA base in an optical component provided by an embodiment of the present invention; Figure 5 This is a partially exploded schematic diagram of an optical component provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the FA base and FA plug in an optical component before they are connected, according to an embodiment of the present invention. Figure 7 This is a schematic diagram of the connection between the FA base and the FA plug in an optical component according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the FA base and FA plug before they are connected in another optical component provided in this embodiment of the invention; Figure 9 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided in an embodiment of the present invention; Figure 10 This is a cross-sectional view of an optical component after the FA base and FA plug are connected, according to an embodiment of the present invention. Figure 11 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided by an embodiment of the present invention; Figure 12 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided by an embodiment of the present invention; Figure 13 This is a schematic diagram of an FA connector in an optical component provided by an embodiment of the present invention; Figure 14 This is a cross-sectional schematic diagram of the FA base in another optical component provided in an embodiment of the present invention; Figure 15 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided by an embodiment of the present invention; Figure 16 This is a cross-sectional view of the FA base and FA plug after docking in another optical component provided by an embodiment of the present invention; Figure 17 This is a schematic diagram of an FA connector in another optical component provided in an embodiment of the present invention; Figure 18 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided by an embodiment of the present invention; Figure 19 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided by an embodiment of the present invention; Figure 20 This is a schematic diagram of the connection between the FA base and the FA plug in another optical component provided by an embodiment of the present invention; Figure 21 This is a cross-sectional view of the FA base and FA plug after docking in another optical component provided by an embodiment of the present invention; Figure 22 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 23 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 24 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 25 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 26 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 27 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 28 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 29 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 30 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 31 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 32 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 33 This is a schematic diagram of another optical component provided in an embodiment of the present invention; Figure 34 This is a schematic diagram of an optical component being connected to a PCB board according to an embodiment of the present invention; Figure 35 This is a schematic diagram of an optical component docking to an optical module according to an embodiment of the present invention; The accompanying figure is labeled as follows: MT11; PIN pin positioning hole 111; FA base 21; positioning sub-hole 211; through slot 212; inverted grid 213; target transverse slot 214; ear receiving slot 215; slot seat 216; PIN pin 217; FA plug 31; column 311; ear 12; hook 121; L-shaped ear 412; short arm 4121; long arm 4122; arched ear 512. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0011] In the description of this invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0012] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0013] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "coupled" can refer to an electrical connection that enables signal transmission.

[0014] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] Example 1: Embodiment 1 of the present invention provides an optical component, such as... Figure 2 and Figure 3 As shown, the optical component includes a standard MT11, an FA base 21, and at least two sets of FA connectors 31, each equipped with an optical fiber array. Each set of FA connectors 31 has an optical fiber array that carries a set of transmitting components or a set of receiving components. The FA connectors 31 are plugged into and fixed to the FA base 21, and the end faces of the optical fiber arrays on all FA connectors 31 constitute the end faces of the optical fiber arrays on the FA base 21. The FA base 21 is mated to the tail of the MT11. As shown... Figure 3 As shown, the fiber array end faces on all FA plugs 31 facing the direction of MT11 constitute the fiber array end faces on the FA base 21 facing the direction of MT11, and the fiber array end faces on the FA base 21 facing the direction of MT11 are coupled to each other with the fiber array end faces at the tail of MT11.

[0016] In this embodiment, MT stands for Mechanical Transfer, and MT11 contains an optical fiber array including multiple optical fibers. MT11 is rectangular in shape. FA stands for Fiber Array, and FA plug 31 contains an optical fiber array including multiple optical fibers. FA plug 31 is rectangular in shape.

[0017] In this embodiment, the number of optical fibers in the fiber arrays on different sets of FA plugs 31 can be the same or different; the type of fiber arrays on different sets of FA plugs 31 can be the same or different; the fiber array on each FA plug 31 can be used to carry a transmitting component to emit optical signals; or it can be used to carry a receiving component to receive optical signals. The carrying refers to the coupling of the fiber array on the FA plug 31 to a port on the transmitting component, or the coupling of the fiber array on the FA plug 31 to a port on the receiving component.

[0018] like Figure 2 , Figure 3 and Figure 6 As shown, the FA base 21 is a rectangular column. A through slot 212 is provided on the FA base 21, which passes through both end faces of the FA base 21. The through slot 212 is used for inserting the corresponding FA plug 31. The FA plug 31 is inserted into the through slot 212 on one end face of the FA base 21 and extends to the other end face of the FA base 21 within the through slot 212. Through the above structure and installation method, all FA plugs 31 are inserted and fixed, so that the fiber arrays of all FA plugs 31 inserted on the FA base 21 can be positionally corresponding with the fiber arrays on the MT11. The tail of the MT11 is the end of the MT11 used to connect with the FA base 21. By connecting the extended end of the FA plug 31 on the FA base 21 with the tail of the MT11, the fiber arrays of all FA plugs 31 on the FA base 21 and the fiber arrays at the tail of the MT11 are correspondingly coupled, completing the corresponding optical path transmission between the MT11 and each FA plug 31.

[0019] In this embodiment, different sets of FA plugs 31 are designed to support the transmitting and / or receiving components. By inserting the different sets of FA plugs 31 onto the FA base 21, the fiber array end faces on all FA plugs 31 constitute the fiber array end faces on the FA base 21. Then, the FA base 21 and the tail of the MT11 are connected, thereby coupling the fiber array end faces on the FA base 21 with the fiber array end faces at the tail of the MT11, realizing the corresponding optical path transmission between the MT11 and each FA plug 31. With the above-mentioned independent sets of FA plugs 31, when there is a fiber outgoing fault on the FA plug 31, the corresponding FA plug 31 can be replaced and maintained. Other FA plugs 31 and MT11 will not be affected and do not need to be replaced, thereby improving the stability of structural maintenance and saving costs.

[0020] In this embodiment, to ensure the docking stability between the FA base 21 and the tail of MT11 in terms of structural dimension, it is necessary to ensure that the docking end face of the FA base 21 and the docking end face of the MT11 are dimensionally compatible. Therefore, this embodiment also involves the following design: Figure 4 As shown, the envelope of the cross section of the FA base 21 coincides with the envelope of the tail section of the MT11 (or the envelope of the cross section of the FA base 21 is slightly smaller than the envelope of the tail section of the MT11). Figure 4 The dashed line in the figure is the envelope of the cross section of the FA base 21.

[0021] In this embodiment, the envelope is used to describe the outer boundary shape of the cross-sectional profile of the object. Considering that the contour surfaces of the FA base 21 and the tail of MT11 may be provided with grooves for mating with other structures, and these grooves may damage the integrity of the contour surfaces, it is necessary to make the envelope of the cross-section of the FA base 21 coincide with the envelope of the cross-section of the tail of MT11. This ensures that when the FA base 21 and the tail of MT11 are docked, the fit between the end face of the FA base 21 and the end face of the tail of MT11 meets the requirements, thus avoiding the presence of additional protruding structures in the cross-sectional profile that may affect the subsequent assembly of the device.

[0022] In this embodiment, the docking between the FA base 21 and the tail of the MT11 requires a corresponding structure to ensure the stability and accuracy of the docking. Therefore, this embodiment also involves the following design: Figure 5 As shown, the MT11 has PIN pin positioning holes 111 on both sides of its own fiber array; relative to the PIN pin positioning holes 111, the FA base 21 has positioning sub-holes 211 coaxially arranged.

[0023] In this embodiment, as Figure 5 As shown, the fiber optic array on the MT11 can be located in the middle area of ​​the MT11, that is, no fiber optic array is provided on the two sides of the MT11, so as to reserve space for the PIN pin positioning hole 111. The PIN pin positioning hole 111 is located on the tail end face of the MT11 and is located on the left and right sides of the fiber optic array.

[0024] In one embodiment, three PIN pin positioning holes 111 can be respectively provided on the left and right sides of the fiber array on the tail end face of the MT11. The three PIN pin positioning holes 111 are arranged in a vertical direction. The PIN pin positioning holes 111 located at the top and bottom positions are blind holes, and the PIN pin positioning hole 111 located in the middle position is a first through hole, which passes through both ends of the MT11. The FA base 21 has at least four pins 217 at one end facing the tail of the MT11. Two pins 217 are located on one side of the end face of the FA base 21, and are coaxially corresponding to two blind holes on the corresponding side of the tail of the MT11, and are inserted into the two corresponding blind holes. The other two pins 217 are located on the other side of the end face of the FA base 21, and are coaxially corresponding to two blind holes on the corresponding side of the tail of the MT11, and are inserted into the two corresponding blind holes. The diameter of the pin positioning hole 111 is slightly larger than the cross-sectional diameter of the pin 217, allowing a small gap between the inner wall of the pin positioning hole 111 and the pin 217, so that the pin 217 can be inserted into the pin positioning hole 111. The PIN pin 217 is generally made of metal or ceramic, and has high rigidity and wear resistance. The cooperation between the PIN pin positioning hole 111 and the corresponding PIN pin 217 ensures that the MT11 and FA base 21 are basically aligned in the horizontal direction, and prevents reverse insertion and rotational misalignment during docking. It can also provide preliminary mechanical support and reduce assembly stress.

[0025] In this embodiment, as Figure 5 As shown, to further improve the docking stability between the tail of MT11 and FA base 21, at least two positioning sub-holes 211 are provided on the end face of the FA base 21 facing the tail of MT11. One positioning sub-hole 211 is located on one side of the FA base 21, and the other positioning sub-hole 211 is located on the other side of the FA base 21. It should be noted that... Figure 5 The positioning sub-hole 211 on the other side of the FA base 21 is blocked by the FA plug 31 and is therefore not shown in the figure. The positioning sub-hole 211 is a second through hole that passes through both ends of the FA base 21. The second through hole and the first through hole are coaxially arranged and used to insert corresponding guide pins, thereby further improving the docking stability between the tail of the MT11 and the FA base 21.

[0026] In this embodiment, to ensure the stability of the FA plug 31 inserted into the FA base 21 and to prevent the FA plug 31 from coming off the FA base 21 after insertion, corresponding mating structures are required on both the FA plug 31 and the FA base 21 to ensure the stability of the FA plug 31 inserted into the FA base 21. Therefore, this embodiment also involves the following design: Figures 6-9 As shown, the FA plug 31 includes the column 311 and a pair of lugs 12 disposed at the end or front end of the column 311; an optical fiber array is disposed through the middle of the column 311, and the outer contour of the column 311 is used to insert into the through slot 212 on the FA base 21; as shown Figure 6 and Figure 7 As shown, the pair of hooks 12 are attached to the two side walls of the FA base 21, or, as... Figure 8 and Figure 9 As shown, the pair of hooks 12 are embedded in the hook receiving groove 215 of the FA base 21, thereby forming a force exerted by the FA base 21 on the FA plug 31 and toward the front end of the column 311.

[0027] In this embodiment, the ear-holding groove 215 is located in the through groove 212 and is used to hold the ear 12.

[0028] In one embodiment, to Figure 7 For example, Figure 7 The rightmost FA connector 31 has a larger cross-section and contains eight optical fibers, which can be used to carry the transmitting components. Figure 7 The two FA plugs 31 near the left side have relatively small cross-sections. Each FA plug 31 near the left side has four optical fibers, which can be used to carry receiving components. Of course, the type of component carried by the FA plug 31 depends on the optical port type, and the arrangement of the FA plugs 31 on the FA base 21 is adapted to the order of the transmitting and receiving optical ports.

[0029] In this embodiment, the hook 12 is disposed on the side wall of the column 311. The hook 12 and the FA base 21 cooperate to fix the FA plug 31 and the FA base 21. The hook 12 has a partial structure that is elastic. Through the corresponding cooperation and rebound force, the FA base 21 acts on the FA plug 31 and toward the front end of the column 311, which constitutes the force in the direction of the FA plug 31 inserting into the through groove 212 of the FA base 21. The front end of the column 311 is the end where the column 311 and the tail of MT11 meet, and the end of the column 311 is the opposite end to the front end. The above structure improves the stability of the FA plug 31 inserted into the FA base 21.

[0030] This embodiment provides two different ear loop 12 structures. The first structure is as follows: Figure 6 As shown, the pair of lugs 12 are attached to the two side walls of the FA base 21; the second structural form is as follows. Figure 9 and Figure 10As shown, the pair of hooks 12 are embedded in the hook receiving groove 215 of the FA base 21. The two different hook structures will be described in detail later in this embodiment.

[0031] For the first structural form of the loop 12, this embodiment involves the following design: such as Figure 11 and Figure 12 As shown, the surface of the FA base 21 for supporting a pair of hooks 12 is provided with multiple rows of inverted grids 213 or target transverse grooves 214; wherein, the hooks 121 at the ends of the pair of hooks 12 are used to hook onto a designated row of the inverted grids 213 or within the target transverse grooves 214. Figure 13 As shown, the hook 12 is L-shaped. To distinguish it from the hook 12 of the second structural form, the hook 12 is referred to as L-shaped hook 412 in the description of the hook 12 of the first implementation. Combined with... Figure 13 The long arm 4122 of the L-shaped hook 412 is provided with the hook 121 at its end, and the short arm 4121 of the L-shaped hook 412 is coupled to the end of the column 311.

[0032] like Figure 13 As shown, when the hook 12 is an L-shaped hook 412, the short arm 4121 extends at the end of the column 311 in a direction perpendicular to the column 311. The long arm 4122 is coupled to the outer end of the short arm 4121. The long arm 4122 extends toward the front end of the column 311. The hook 121 is located at the end of the long arm 4122 and extends inward. The short arm 4121 is made of an elastic material. Figure 11 and Figure 12 As shown, the upper and lower sides of the FA base 21 are provided with slot seats 216, and the multiple rows of inverted grids 213 or target transverse grooves 214 are provided on the bottom surface of the slot seats 216. The inverted grids 213 are elongated protrusions, and the multiple rows of inverted grids 213 are multiple elongated protrusions arranged in parallel on the bottom of the slot seats 216; the target transverse grooves 214 are elongated grooves or inclined grooves, provided on the bottom of the slot seats 216.

[0033] When the FA plug 31 is inserted into the through slot 212 of the FA base 21, the L-shaped hook 412 is pushed into the corresponding slot 216, and the long arm 4122 is supported by the bottom of the slot 216. The hook 121 at the end of the long arm 4122 falls into the inverted grid 213 or the target horizontal slot 214 due to the rebound force of the short arm 4121. The inner sidewall of the inverted grid 213 or the target horizontal slot 214 abuts against the hook 121, preventing the FA plug 31 from coming out of the through slot 212, and forming a force acting on the FA plug 31 toward the front end of the FA base 21, thus improving the stability of the FA plug 31 when inserted into the FA base 21.

[0034] like Figure 12 As shown, when the target transverse groove 214 is used, the structure is relatively simpler and the manufacturing cost is relatively lower. However, the problem is that the slot 216 only has one groove structure, the target transverse groove 214, to hold the hook 121. Therefore, the positional accuracy of the target transverse groove 214 in the slot 216 is more critical. It needs to be ensured that when the FA plug 31 is fully inserted into the through groove 212 of the FA base 21, the hook 121 reaches the position of the target transverse groove 214 and abuts against the side wall of the target transverse groove 214. If the position of the target transverse groove 214 is not precise enough during manufacturing, the hook 121 may not be able to fit into the target transverse groove 214, or the hook 121 may fall into the target transverse groove 214 but the hook 121 and the inner side wall of the target transverse groove 214 may not abut against each other. Both of these will affect the stability of the FA plug 31 inserted into the FA base 21. Figure 11 As shown, when multiple rows of inverted grids 213 are used, since each inverted grid 213 is arranged in parallel and the width of the inverted grid 213 is small, multiple inverted grids 213 can expand the engagement range of the hook 121. When the FA plug 31 is fully inserted into the through slot 212 of the FA base 21, the hook 121 only needs to fall into any one of the inverted grids 213. Furthermore, since the width of the inverted grids 213 is small, it is easier to ensure that the hook 121 abuts against the side wall after falling into the corresponding inverted grid 213. The precision requirements of the manufacturing process are relatively low, and it is easier to ensure the stability of the FA plug 31 inserted into the FA base 21. In a specific implementation, for the implementation using the target transverse slot 214, there is also a feasible way to increase the contact force of the fiber end face on the FA base 21. That is, the corresponding hook 121 extends beyond the cross-sectional envelope of the FA base 21 by a small distance (e.g., 0.1~0.6mm). This way, when the optical component is installed on the optical module base and the top cover is applied, the hook 121 extending beyond the envelope will be pressed by the optical module base and the top cover, so that the hook 121 abuts against the target transverse slot 214 and generates an elastic contact force towards the fiber end face on the FA base 21, resulting in a better connection effect.

[0035] When the lug 12 is an L-shaped lug 412, since the L-shaped lug 412 mates with the FA base 21 on the outside of the structure, it is necessary to avoid the envelope of the L-shaped lug 412 relative to the FA base 21 protruding, which could cause problems in the assembly of subsequent devices. Therefore, this embodiment also involves the following design: Figure 14 As shown, the multi-row inverted grid 213 is formed in the groove 216 of the FA base 21; wherein, the depth of the groove 216 is such that while the hook 12 is hooked on the two side walls of the FA base 21, the long arm 4122 of the L-shaped hook 412 is within the envelope of the cross section of the FA base 21.

[0036] like Figure 14 As shown, Figure 14 The dashed box represents the envelope of the cross-section of the FA base 21. When the FA socket is inserted into the through slot 212 of the FA base 21, the long arm 4122 is located within the slot 216, and the highest point of the upper end of the long arm 4122 is within the envelope of the cross-section of the FA base 21. In this embodiment, the two side walls of the FA base 21 are the bottom surfaces of the upper and lower slots 216 in the FA base 21.

[0037] In this embodiment, to further ensure the stability of the FA plug 31 inserted into the FA base 21, the following design is also involved: Figure 15 As shown, the short arm 4121 of the L-shaped hook 412 is an elastic arm; after the long arm 4122 of the L-shaped hook 412 is provided to be attached to a designated row of inverted grids 213, the elastic deformation of the short arm 4121 of the L-shaped hook 412 generates a force toward the front end of the column 311.

[0038] In this embodiment, the force is the contact force between the fiber array end face on the FA base 21 and the fiber array end face at the tail of the MT11. Figure 15 The direction of the middle arrow indicates the applied force, which ensures the stability of the FA socket inserted into the FA base 21. In this embodiment, when the two L-shaped lugs 412 are open and hooked onto the inverted grid 213, the short arms 4121 of the two L-shaped lugs 412 undergo outward deformation, with the outward deformation direction facing away from the front end of the column 311. Therefore, the restoring force of the elastic deformation of the short arms 4121 is directed towards the front end of the column 311, thereby applying a force to the column 311 towards the front end of the FA base 21 and improving the stability of the column 311 inserted into the through slot 212.

[0039] It is important to note that, such as Figure 15As shown, when using a multi-row inverted grid 213 structure design, during the insertion of the FA plug 31 into the through slot 212, the hook 121 needs to pass through the multi-row inverted grid 213 and be lifted by multiple protruding multi-row inverted grids 213. Therefore, the short arm 4121 of the L-shaped hook 412 needs to undergo deformation and bending for a long time. Thus, the elastic deformation requirement of the short arm 4121 of the L-shaped hook 412 is relatively high. In this structure, a deformation guide groove is provided on the side wall of the short arm 4121 of the L-shaped hook 412 to improve the elastic deformation performance of the short arm 4121 of the L-shaped hook 412. Figure 12 As shown, when the target transverse groove 214 is adopted, since the hook 121 of the L-shaped lug 412 only needs to reach into the target transverse groove 214, the short arm 4121 of the L-shaped lug 412 does not need to deform and bend for a long time. The hook 121 can quickly spring back to the target transverse groove 214. Therefore, the elastic deformation requirement of the short arm 4121 of the L-shaped lug 412 is relatively low. A deformation guide groove can be provided on the short arm 4121 under this structure, or no deformation guide groove can be provided.

[0040] This embodiment also provides a second structural form of the hanging ear 12. The hanging ear 12 can also be set at the front end of the column 311 and extend towards the end of the column 311. During the extension process, the hanging ear 12 first extends diagonally upward, and after reaching the highest point, it extends diagonally downward. The hanging ear 12 is arched in shape. In order to adapt to the second structural form of the hanging ear 12 and realize the cooperation between the hanging ear 12 and the FA base 21, this embodiment also involves the following design: Figure 16 and Figure 17 As shown, the inner wall of the FA base 21 for supporting a pair of hooks 12 is provided with hook receiving grooves 215; wherein, the pair of hooks 12 are deformed and embedded in the hook receiving grooves 215. The hooks 12 are arched. In order to distinguish them from the hooks 12 of the first structural form, the hooks 12 in the description of the second implementation of the hooks 12 are referred to as arched hooks 512. One end of the arched hooks 512 is located near the front end of the column 311; the other end is suspended at the end of the column 311.

[0041] In this embodiment, as Figure 16 and Figure 17 As shown, each through slot 212 is provided with at least two lug receiving slots 215, so as to... Figure 16 Taking a through slot 212 with two ear-receiving grooves 215 as an example, the two ear-receiving grooves 215 are located on two opposite inner sidewalls of the through slot 212. When the FA plug 31 is inserted into the through slot 212, the two arched ears 512 correspond to the two ear-receiving grooves 215 respectively. The inner wall of the ear-receiving groove 215 is arched, that is, the depth is greatest at the middle position of the ear-receiving groove 215. Figure 16The dimension h marked in the figure represents the maximum depth at the center of the ear-receiving groove 215. As the groove extends towards both sides, the depth decreases. The shape change of the ear-receiving groove 215 corresponds to the shape change of the arched ear 512. The arched ear 512 is made of elastic material. When the FA plug 31 is inserted into the through groove 212, the arched ear 512 is compressed and deformed at the entrance of the through groove 212. When the FA plug 31 is inserted into the through groove 212, the arched ear 512 reaches the position of the ear-receiving groove 215 and, due to the elastic restoring force, returns to its arched shape, allowing the arched ear 512 to fit snugly within the ear-receiving groove 215. This prevents the FA plug 31 from coming out of the through groove 212, ensuring the stability of the FA plug 31 inserted into the through groove 212. Figure 16 As shown, when the arched lug 512 is fitted into the lug receiving groove 215, the long arm of the arched lug 512 is squeezed by the inner wall of the lug receiving groove 215, applying a force a to the long arm of the arched lug 512. Force a is decomposed into a vertical force b and a horizontal axial force c. Force c provides a force to the entire column 311 towards the front end of the FA base 21, ensuring the stability of the FA plug 31 inserted into the through groove 212, and also ensuring the stability of the subsequent connection between the front end of the FA plug 31 and the tail end of the MT11. It is worth mentioning that in this embodiment, as... Figure 16 As shown, a gap is left between the short arm of the arched lug 512 and the inner wall of the corresponding lug receiving groove 215. This gap is mainly used to avoid the problem that the front end of the column 311 cannot reach the front end of the FA base 21 when the axial length of the column 311 is short due to machining errors. When there is a gap between the short arm of the arched lug 512 and the inner wall of the corresponding lug receiving groove 215, and the axial length of the column 311 is short, the column 311 can continue to move towards the front end of the FA base 21 in the through groove 212 until the front end of the column 311 reaches the front end of the FA base 21, so as to meet the requirements of the subsequent docking stability between the front end of the FA plug 31 and the tail of MT11.

[0042] In this embodiment, after the FA plug 31 is inserted into the FA base 21, in order to improve the coupling stability between the fiber arrays of each FA plug 31 and the fiber array on the MT11, this embodiment also involves the following design: such as Figure 18As shown, before the front end of the FA base 21 is connected to the tail end of the MT11, the FA plug 31 needs to be pushed into the FA base 21. After the FA plug 31 is pushed into the FA base 21, the front end of the column 311 protrudes from the front end of the FA base 21 under the action of the arched lug 512 being embedded in the lug receiving groove 215. After the front end of the FA base 21 is connected to the tail end of the MT11, the abutment force of the tail end of the MT11 on the front end of the column 311 is used to cause the arched lug 512 to bend and deform within the lug receiving groove 215.

[0043] In this embodiment, the front end of the column 311 protrudes beyond the front end of the FA base 21 under the action of the arched lug 512 being embedded in the lug receiving groove 215. Specifically, when the FA plug 31 is fully inserted into the through groove 212 of the FA base 21, the front end of the column 311 of the FA plug 31 slightly protrudes from the through groove 212 to the front end of the FA base 21. When the FA base 21 and the end of MT11 are connected, the end face of MT11 abuts against the protruding portion of the column 311 on the end face of the FA base 21, applying force towards the end of the FA base 21. When force is applied, the arched lug 512 is simultaneously subjected to the same force in the same direction within the lug receiving groove 215. Therefore, the suspended end of the arched lug 512 will be abutted against the groove wall of the lug receiving groove 215, causing the arched lug 512 to bend and deform within the lug receiving groove 215. At the same time, due to the elastic recovery force brought about by the bending deformation of the arched lug 512 itself, the arched lug 512 will exert a force on the column 311 towards the end of MT11, thereby improving the abutment stability between the front end of the column 311 and the end of MT11, and thus improving the optical path coupling stability between MT11 and FA plug 31.

[0044] like Figure 19 As shown, in this embodiment, after the arched hook 512 is embedded in the hook receiving groove 215, the other end of the arched hook 512 is suspended outside the hook receiving groove 215, and the part of the structure extending into the hook receiving groove 215 is not subjected to force, such as... Figure 16As shown, when the arched lug 512 is fitted into the lug receiving groove 215, the long arm of the arched lug 512 is squeezed by the inner wall of the lug receiving groove 215, applying a force a to the long arm of the arched lug 512. The force a is decomposed into a vertical force b and a horizontal axial force c. The force c provides the entire column 311 with a force towards the front end of the FA base 21. Because the force applied to the long arm of the arched lug 512 by the inner wall of the lug receiving groove 215 under this structure is perpendicular to the long arm and inconsistent with the axial direction of the column 311, the axial force applied to the column 311 is limited, and the effect on improving the optical path coupling stability between MT11 and FA plug 31 is limited.

[0045] Based on the above structure, in order to further improve the effect of the rebound force of the arched lug 512 on the column 311 itself, the structure of the arched lug 512 needs to be designed accordingly, as follows: Figure 20 As shown, the other end of the arched lug 512 is embedded in the lug receiving groove 215 and abuts against the inner wall of the lug receiving groove 215.

[0046] In this embodiment, the ear-receiving groove 215 is provided with an abutment surface near the end of the FA base 21. During the process of inserting the FA plug 31 into the through groove 212, the arched ear 512 is first squeezed until the FA plug 31 is fully inserted into the through groove 212. The arched ear 512 is then embedded into the ear-receiving groove 215 by the rebound force. At the same time, the other end of the arched ear 512 falls into the ear-receiving groove 215 by the rebound force and is opposite or abutting the abutment surface. When the FA base 21 and the end of MT11 are connected, the end of MT11 abuts against the front end of the column 311. At this time, the other end of the arched ear 512 abuts against the abutment surface. Figure 20 As shown, when the arched lug 512 is fitted into the lug receiving groove 215, the long arm of the arched lug 512 is squeezed by the inner wall of the lug receiving groove 215, applying a force d to the long arm of the arched lug 512. The force d is decomposed into a vertical force e and a horizontal axial force f. The abutting surface also applies a force to the end face of the arched lug 512 in the axial direction. This force and the force f are in the same direction, both providing a force to the entire column 311 towards the front end of the FA base 21. Therefore, it can more effectively improve the force applied to the column 311 towards the front end of the FA base 21, and more effectively improve the optical path coupling stability between MT11 and FA plug 31.

[0047] In this embodiment, to further enhance the effect of the rebound force of the arched lug 512 on the column 311 itself, another feasible structure is provided, specifically designed as follows: Figure 21As shown, the other end of the arched lug 512 is suspended outside the lug receiving groove 215, and before the front end of the FA base 21 is connected to the tail of the MT11, the other end of the arched lug 512 abuts against the surface of the column 311.

[0048] In the above structure, the other end of the arched lug 512 abuts against the surface at the end of the column 311. When the arched lug 512 is embedded in the lug receiving groove 215 and the FA base 21 is connected to the tail end of the MT11, the arched lug 512 is subjected to a force toward the end of the column 311. The arched lug 512 is abutted against by the inner wall of the lug receiving groove 215, and at the same time, the other end of the arched lug 512 abuts against the surface at the end of the column 311. This improves the force exerted by the arched lug 512 on the column 311, and can more effectively improve the optical path coupling stability between the MT11 and the FA plug 31.

[0049] In this embodiment, for all FA plugs 31 inserted in the FA base 21, corresponding FA plugs 31 need to be designed according to requirements to set up the transmitting optical path or the receiving optical path, specifically involving the following design: the arrangement of the at least two sets of FA plugs 31 in the FA base 21 is as follows: one set of FA plugs 31 for setting up the receiving optical path and one set of FA plugs 31 for setting up the transmitting optical path; or, one set of FA plugs 31 for setting up the transmitting optical path and two sets of FA plugs 31 for setting up the receiving optical path; or, four sets of FA plugs 31 for setting up the receiving optical path; or, four sets of FA plugs 31 for setting up the transmitting optical path; wherein, the arrangement of the FA plugs 31 on the FA base 21 is adapted to the order of the transmitting optical port and the receiving optical port.

[0050] The differences between different sets of FA connector 31 lie in the different types of optical paths they are configured with and / or the different numbers of optical fibers in the fiber optic array; such as Figures 22-24 As shown, there is one set of FA connector 31 for setting the receiving optical path and one set of FA connector 31 for setting the transmitting optical path under different interface structures; as follows Figures 25-30 As shown, under different interface structures, there is one set of FA connector 31 for setting the transmitting optical path and two sets of FA connector 31 for setting the receiving optical path; as follows Figures 31-33 As shown, under different interface structures, there are four sets of FA connectors 31 for setting up the receiving optical path; or four sets of connectors for setting up the transmitting optical path. Moreover, the arrangement order of the FA connectors 31 carrying optical components with different functions is not specifically limited, and can be arranged in an adaptive layout according to the order of the optical ports.

[0051] Example 2: This embodiment is based on embodiment 1, such as... Figure 34 and Figure 35 As shown, an optical module with an optical component is provided. The optical component includes a standard MT11 and an FA base 21, and at least two sets of FA plugs 31, each equipped with an optical fiber array. The optical fiber array on each set of FA plugs 31 carries a set of transmitting components 6 or a set of receiving components 7. The FA plugs 31 are inserted and fixed onto the FA base 21, wherein the end faces of the optical fiber arrays on all the FA plugs 31 constitute the end faces of the optical fiber arrays on the FA base 21. The end faces of the optical fiber arrays on the FA base 21 are coupled to the end faces of the optical fiber arrays at the tail of the MT11. Before being fixed to the optical module, the optical component is pre-embedded in an MPO standard interface housing. The MPO standard interface housing is disposed in a preset optical port slot of the optical module. As shown... Figure 34 As shown, the carrier is: the fiber array on the FA plug 31 is coupled to the port on the transmitting component 6, or the fiber array on the FA plug 31 is coupled to the port on the receiving component 7.

[0052] The accompanying drawings of this embodiment show three sets of FA connectors 31, two sets of FA connectors 31 are used to carry a set of transmitting components 6, and the other set of FA connectors 31 is used to carry a receiving component 7. In actual use, the number of FA connectors 31 is determined according to the number of optical ports, the type of component carried by the FA connectors 31 is set according to the type of optical port, and the arrangement of the FA connectors 31 on the FA base 21 is adapted to the order of the transmitting and receiving optical ports. No specific limitations are made here.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optical component comprising a standard MT (11), characterized in that, It also includes an FA base (21) and at least two sets of FA plugs (31) each equipped with an optical fiber array; wherein the optical fiber array on each set of FA plugs (31) is used to carry a set of transmitting components or a set of receiving components; The FA plug (31) is plugged into and fixed on the FA base (21), wherein the fiber array end face on all the FA plugs (31) constitutes the fiber array end face on the FA base (21). The FA base (21) is connected to the tail of the MT (11); The fiber array end face on the FA base (21) is coupled to the fiber array end face at the tail of the MT (11).

2. The optical component according to claim 1, characterized in that, The envelope of the cross section of the FA base (21) coincides with the envelope of the tail section of the MT (11).

3. The optical component according to claim 1, characterized in that, The MT (11) has PIN pin positioning holes (111) on both sides of its own fiber array; relative to the PIN pin positioning holes (111), the FA base (21) has positioning sub-holes (211) coaxially.

4. The optical component according to claim 1, characterized in that, The FA plug (31) includes a post (311) and a pair of lugs (12) disposed at the end or front end of the post (311). The column (311) has a fiber array running through its middle, and the outer contour of the column (311) is used to insert into the through slot (212) on the FA base (21). A pair of the hooks (12) are attached to the two side walls of the FA base (21), or a pair of the hooks (12) are embedded in the hook receiving groove (215) of the FA base (21), thereby forming a force of the FA base (21) acting on the FA plug (31) and toward the front end of the column (311).

5. The optical component according to claim 4, characterized in that, The surface of the FA base (21) for supporting a pair of the hooks (12) is provided with multiple rows of inverted grids (213) or target transverse grooves (214); wherein, the hooks (121) at the ends of the pair of hooks (12) are used to hang on a designated row of the inverted grids (213) or in the target transverse grooves (214).

6. The optical component according to claim 5, characterized in that, The hook (12) is L-shaped, and the long arm (4122) of the L-shaped hook (412) is provided with the hook (121) at the end. The short arm (4121) of the L-shaped hook (412) is coupled to the end of the column (311).

7. The optical component according to claim 6, characterized in that, The multi-row inverted grid (213) is made in the groove (216) of the FA base (21); wherein the depth of the groove (216) is such that while the lugs (12) are attached to the two side walls of the FA base (21), the long arm (4122) of the L-shaped lugs (412) is within the envelope of the cross section of the FA base (21).

8. The optical component according to claim 6, characterized in that, The short arm (4121) of the L-shaped hook (412) is an elastic arm; after the long arm (4122) of the L-shaped hook (412) is provided with a designated row of inverted grids (213) for mounting, the elastic deformation of the short arm (4121) of the L-shaped hook (412) generates a force toward the front end of the column (311).

9. The optical component according to claim 4, characterized in that, The FA base (21) has an ear receiving groove (215) on its inner wall for supporting a pair of ear loops (12); wherein the pair of ear loops (12) are deformed and embedded in the ear receiving groove (215).

10. The optical component according to claim 9, characterized in that, The hanging ear (12) is arched; one end of the arched hanging ear (512) is located near the front end of the column (311); the other end is suspended at the end of the column (311).

11. The optical component according to claim 10, characterized in that, Before the front end of the FA base (21) is connected to the rear end of the MT (11), the FA plug (31) needs to be pushed into the FA base (21). After the FA plug (31) is pushed into the FA base (21), the front end of the column (311) protrudes into the front end of the FA base (21) under the action of the arched lug (512) being embedded in the lug receiving groove (215); In this process, after the front end of the FA base (21) is connected to the tail end of the MT (11), the force of the tail end of the MT (11) acting on the front end of the column (311) is the bending deformation of the arched hanging ear (512) in the hanging ear receiving groove (215).

12. The optical component according to claim 11, characterized in that, The other end of the arched ear (512) is embedded in the ear receiving groove (215) and abuts against the inner wall of the ear receiving groove (215); or, the other end of the arched ear (512) is suspended outside the ear receiving groove (215).

13. The optical component according to claim 12, characterized in that, The other end of the arched lug (512) is suspended outside the lug receiving groove (215), and before the front end of the FA base (21) is connected to the tail of the MT (11), the other end of the arched lug (512) abuts against the surface of the column (311).

14. The optical component according to claim 1, characterized in that, The at least two sets of FA plugs (31) are arranged within the FA base (21) as follows: One set of the FA connector (31) for setting the receiving optical path, and one set of the FA connector (31) for setting the transmitting optical path; or, One set of the FA connector (31) for setting the transmitting optical path, and two sets of the FA connector (31) for setting the receiving optical path; or, Four sets of the FA plugs (31) for setting up the receiving optical path; or, four sets of the FA plugs (31) for setting up the transmitting optical path. The arrangement of the FA plugs (31) on the FA base (21) is adapted to the order of the transmitting and receiving optical ports.

15. An optical module suitable for optical components, characterized in that, The optical component includes a standard MT (11) and FA base (21), and at least two sets of FA plugs (31) each equipped with an optical fiber array; wherein the optical fiber array on each set of FA plugs (31) is used to carry a set of transmitting components or a set of receiving components. The FA plug (31) is plugged into and fixed on the FA base (21), wherein the fiber array end face on all the FA plugs (31) constitutes the fiber array end face on the FA base (21); wherein the fiber array end face on the FA base (21) is coupled to the fiber array end face at the tail of the MT (11). Before being fixed to the optical module, the optical component is pre-embedded in the MPO standard interface housing; the MPO standard interface housing is set in the preset optical port slot of the optical module.

16. The optical module of the applicable optical component according to claim 15, characterized in that, The FA plug (31) includes a post (311) and a pair of lugs (12) disposed at the end or front end of the post (311). The column (311) has a fiber array running through its middle, and the outer contour of the column (311) is used to insert into the through slot (212) on the FA base (21). A pair of the hooks (12) are attached to the two side walls of the FA base (21), or a pair of the hooks (12) are embedded in the hook receiving groove (215) of the FA base (21), thereby forming a force of the FA base (21) acting on the FA plug (31) and toward the front end of the column (311).

17. The optical module of the applicable optical component according to claim 16, characterized in that, The surface of the FA base (21) for supporting a pair of the hooks (12) is provided with multiple rows of inverted grids (213) or target transverse grooves (214); wherein, the hooks (121) at the ends of the pair of hooks (12) are used to hang on a designated row of the inverted grids (213) or in the target transverse grooves (214).

18. The optical module of the applicable optical component according to claim 17, characterized in that, The hook (12) is L-shaped, and the long arm (4122) of the L-shaped hook (412) is provided with the hook (121) at the end. The short arm (4121) of the L-shaped hook (412) is coupled to the end of the column (311).

19. The optical module of the applicable optical component according to claim 16, characterized in that, The FA base (21) has an ear receiving groove (215) on its inner wall for supporting a pair of ear loops (12); wherein the pair of ear loops (12) are deformed and embedded in the ear receiving groove (215).

20. The optical module of the applicable optical component according to claim 19, characterized in that, The hanging ear (12) is arched; one end of the arched hanging ear (512) is located near the front end of the column (311); the other end is suspended at the end of the column (311).

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