Low-insertion-loss optical socket, optical module and optical communication device
By setting positioning marks and eccentric marks in the low insertion loss optical socket, the eccentric position of the socket core is accurately controlled, and the correspondence between the optical fiber jumper and the eccentric position of the socket core is solved, and the high loss problem caused by the random eccentric position of the optical socket core is achieved, and the optical communication effect with low insertion loss is achieved.
Patent Information
- Application Number
- CN202420501303.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-14
AI Technical Summary
In the prior art, the eccentric position of the optical socket core is random, resulting in higher losses when the optical socket is connected to the optical fiber jumper.
By setting positioning marks and eccentric marks in the low insertion loss optical socket, the eccentric position of the socket core of the socket fiber is accurately controlled, and through precise marking and alignment assembly, the eccentric fixed area of the jumper core of the optical fiber jumper overlaps and docks with the eccentric fixed area of the socket core of the socket fiber fiber.
This achieves the reduction of insertion loss and ensures that the loss of optical signals during transmission is minimized, thereby improving the performance of optical communication links.
Smart Images
Figure CN222671995U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical fiber communication, in particular to a low insertion loss optical socket, an optical module and an optical communication device. Background Art
[0002] High-speed (400G / 800G) networks use more complex encoding methods, which reduces the loss budget of the cabling link compared to low-speed (10G / 40G) transmission rates. In addition, network complexity introduces more connection points, and each connection in the optical fiber transmission link introduces signal loss. This is a design problem that requires an end-to-end channel approach. To meet link performance requirements, components with lower insertion loss should be selected.
[0003] Insertion loss is a measure of the reduction in effective optical power of the transmission line caused by the intervention of the optical fiber connector. The smaller the value, the better. The ITU (International Telecommunication Union) recommends that the insertion loss should not be greater than 0.5dB. The reasons for this loss include: core misalignment, fiber tilt, fiber end face gap, Fresnel reflection, different core diameters, different fiber numerical apertures, etc. In addition, under non-ideal conditions, when the ends of two optical fibers are butt-jointed, it is impossible for the fiber end faces to achieve 100% physical contact, and there must be a gap in the middle that causes insertion loss.
[0004] At present, the use of UPC (Universal Product Code, barcode standard) docking basically solves the influence of fiber tilt and fiber end face gap. However, the core misalignment is affected by the ceramic ferrule and ceramic sleeve. The current solution is to adjust the core eccentricity of the fiber jumper to a fixed area to reduce the connection loss after the connector docking, but the corresponding optical socket core eccentricity position is still random.
[0005] Therefore, the prior art still needs to be improved and developed. Utility Model Content
[0006] The main purpose of the utility model is to provide a low insertion loss optical socket, optical module and optical communication device, aiming to solve the problem in the prior art that the optical socket core has a random eccentric position, thereby resulting in high loss when the optical socket core is connected to the optical fiber jumper core.
[0007] To achieve the above-mentioned object, a first aspect of an embodiment of the present application provides a low insertion loss optical socket, the low insertion loss optical socket comprising:
[0008] The pressing block has a positioning surface, and a positioning mark is provided on the positioning surface;
[0009] An insert is arranged in the pressing block, and an eccentric mark is correspondingly arranged on the insert;
[0010] A socket optical fiber is arranged in the ferrule, and the eccentricity mark is used to mark the eccentricity of the socket fiber core of the socket optical fiber after centering;
[0011] The positioning mark is arranged corresponding to the eccentricity mark, and the optical socket is installed on the optical module through the positioning surface, so that the core eccentricity of the socket corresponds to the core eccentricity of the optical fiber jumper installed on the optical module after centering.
[0012] In a possible implementation manner, the eccentricity mark at least covers a point on a boundary line of a position area formed by the eccentricity of the socket fiber core.
[0013] In a possible implementation manner, the eccentricity mark is located at the midpoint of a boundary line of a position area formed by the eccentricity of the socket fiber core.
[0014] In a possible implementation manner, the position area formed by the eccentricity of the socket fiber core is in the shape of a fan, a semicircle or a polygon, so that the position areas formed by the eccentricity of the socket fiber core and the eccentricity of the jumper fiber core overlap.
[0015] In a possible implementation manner, the positioning surface is flat, and the positioning mark is located on a boundary line of the positioning surface.
[0016] In a possible implementation manner, the low insertion loss optical socket further includes:
[0017] A metal piece is connected to the insert core, and a connection mark is provided on the metal piece, and the connection mark is arranged corresponding to the eccentric mark.
[0018] In a possible implementation manner, the low insertion loss optical socket further includes:
[0019] A sleeve is sleeved on the outside of the ferrule and connected to the pressing block; the sleeve is used to limit the position of the optical fiber jumper.
[0020] A second aspect of an embodiment of the present application provides an optical module, characterized in that the optical module is applied to a low-insertion-loss optical socket as described in any one of the above-mentioned schemes, and is used to make the core eccentricity of the optical fiber jumper after centering correspond to the core eccentricity of the socket after centering; the optical module is provided with a bayonet, and the bayonet is arranged corresponding to the positioning surface.
[0021] A third aspect of an embodiment of the present application provides an optical communication device, characterized in that the optical communication device includes a low insertion loss optical socket as described in any one of the above schemes and an optical module as described in any one of the above schemes.
[0022] In a possible implementation manner, the optical communication device further includes:
[0023] An optical fiber connector centering instrument, used to eccentrically center the socket fiber core of the socket optical fiber to a first fixed area, and eccentrically center the jumper fiber core of the jumper fiber core to a second fixed area, wherein the first fixed area has the same shape as the first fixed area; and / or
[0024] An optical fiber connector is provided, wherein the first fixing area overlaps with the second fixing area.
[0025] Beneficial effect: The utility model provides a low-insertion loss optical socket, an optical module and an optical communication device. The positioning mark of the low-insertion loss optical socket is set corresponding to the eccentric mark. By accurately controlling the eccentric position of the socket core of the socket optical fiber and through precise marking and alignment assembly, the eccentric fixed area of the jumper core of the optical fiber jumper is overlapped and docked with the eccentric fixed area of the socket core of the socket optical fiber, ensuring that the loss of the optical signal during the transmission process is minimized, thereby achieving the purpose of reducing the insertion loss.
[0026] In addition to the technical problems solved by the present application, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the low insertion loss optical socket, optical module and optical communication device provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 A three-dimensional cross-sectional view of a low insertion loss optical socket provided in an embodiment of the present application;
[0029] Figure 2 A three-dimensional diagram of a low insertion loss optical socket provided in an embodiment of the present application;
[0030] Figure 3 A schematic diagram of the installation of a low insertion loss optical socket provided in an embodiment of the present application;
[0031] Figure 4 This is a schematic diagram of the classification of fiber optic connector grades according to IEC standards;
[0032] Figure 5 A schematic plan view of a low insertion loss optical socket provided in an embodiment of the present application before and after the eccentricity adjustment of the socket fiber core;
[0033] Figure 6 A schematic structural diagram of a metal piece provided on a pressing block of a low insertion loss optical socket provided in another embodiment of the present application;
[0034] Figure 7 A cross-sectional schematic diagram of an external coupling component that can be connected to a low insertion loss optical socket provided in an embodiment of the present application
[0035] Figure 8 A schematic diagram of the installation process of the optical communication device provided in an embodiment of the present application;
[0036] Fig. 9 A schematic diagram of the planar structure of an optical communication device provided in an embodiment of the present application.
[0037] Description of reference numerals:
[0038] 100, low insertion loss optical socket; 10, pressing block; 11, positioning surface; 12, positioning mark; 20, ferrule; 21, eccentricity mark; 30, socket optical fiber;
[0039] 200. Optical module; 300. Optical fiber jumper.
[0040] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical scheme and effect of the utility model clearer and more specific, the technical scheme in the embodiment of the present application will be described clearly and completely in combination with the drawings in the embodiment of the present application. Obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.
[0042] In high-speed (400G / 800G) networks, insertion loss is a key parameter that measures the amount of reduction in effective optical power of an optical signal when it passes through a fiber optic connector. Ideally, this value should be as small as possible, because the smaller the loss, the higher the transmission efficiency and the better the signal quality. The insertion loss recommended by the ITU (International Telecommunication Union) should not be greater than 0.5dB. In the prior art, the core eccentricity of the optical fiber jumper is adjusted to a fixed area to reduce the connection loss after the connector is docked, but the corresponding optical socket core eccentricity position is still random. This means that although the loss at the jumper end is controlled, the optical socket end docked with it may still introduce additional loss due to the randomness of the core eccentricity position. This is because when the end faces of the two optical fibers are in physical contact, if the cores are not precisely aligned, it will cause the loss of the optical signal. In the related art, the core eccentricity of the optical fiber jumper is only adjusted to a fixed area to reduce the connection loss after the connector is docked. However, the eccentricity position of the optical socket core is random. If you want to further reduce the insertion loss, you need to fix the eccentricity position area of the optical socket core.
[0043] In order to further reduce the insertion loss, it is possible to consider fixing the eccentric position of the optical socket core in a specific area. In this way, whether it is a jumper or a socket, their cores can be better aligned when docked, thereby reducing the signal loss caused by core misalignment. This improvement can improve the performance of the entire link, which is crucial to meeting the link performance requirements of high-speed networks. In general, insertion loss is an important indicator for measuring the performance of optical fiber connections. By optimizing the design of optical fiber connectors, this loss can be significantly reduced and the overall performance of the network can be improved.
[0044] The technical concept of the utility model is: the position of the socket core eccentricity of the socket optical fiber (i.e. the optical socket core eccentricity) is adjusted to a fixed area, and after the jumper core eccentricity of the optical fiber jumper is adjusted to the fixed area, a fiber optic connector is used to connect the jumper core eccentricity fixed area of the optical fiber jumper with the socket core eccentricity fixed area of the socket optical fiber at the same position, so as to achieve the purpose of further reducing the insertion loss.
[0045] For ease of understanding, the terms involved in the embodiments of the present utility model are introduced as follows:
[0046] Optical fiber is a concentric glass body consisting of a core and a cladding, usually in a cylindrical shape. The core is composed of high-purity silica (quartz glass) and a small amount of dopants. The role of the dopants is to increase the refractive index of the core. In standard single-mode optical fibers, the core is usually located at the geometric center of the cladding to ensure that the light signal can be transmitted evenly. In some special optical fiber designs, such as eccentric core fiber, the core is deliberately set at a position off-center. This design makes the core close to the surface, causing part of the light field to overflow the cladding and propagate, forming an evanescent wave. The evanescent wave can be used to detect whether there is any material attached to the surface of the optical fiber and the change in the refractive index. Core eccentricity refers to the phenomenon that the core of the optical fiber is not in the center of the cladding, but is off-center and close to the outer line of the cladding. Core eccentricity may cause connection loss. This is because when two optical fibers are connected, if their cores are not precisely aligned, the light signal will be lost at the connection point. In short, core eccentricity is an important parameter in optical fiber design and manufacturing, which directly affects the transmission efficiency of optical signals.
[0047] Fiber optic connectors are devices used to connect fiber optic patch cords to achieve the transmission and routing of optical signals. Their main function is to precisely connect the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent. The design of fiber optic connectors requires that their impact on the system is as small as possible. Fiber optic connector centering gauge is an instrument specifically used to detect and adjust the concentricity of fiber optic connectors. It can measure the concentricity of assembled and unassembled fiber optic connectors, and can test the concentricity of bare ferrules. The centering gauge helps reduce the loss of fiber optic connectors by adjusting the deflection angle of the fiber core and marking the assembly position, thereby improving the overall quality of the connector. In other words, fiber optic connectors are physical components used to connect optical fibers, and fiber optic connector centering gauges are test tools used to ensure that these connectors are properly aligned and optimize performance.
[0048] In view of the problem mentioned above that the eccentric position of the optical socket core in the related art is random, so that the optical socket core and the optical fiber jumper core are connected, resulting in high loss, the present application provides a low insertion loss optical socket, optical module and optical communication device, in which the positioning mark and the eccentric mark are set correspondingly, and the eccentric position of the socket core of the socket optical fiber is precisely controlled, and through precise marking and alignment assembly, the eccentric fixed area of the jumper core of the optical fiber jumper overlaps and connects with the eccentric fixed area of the socket core of the socket optical fiber, ensuring that the loss of the optical signal during transmission is minimized, thereby achieving the purpose of reducing insertion loss. Thus, the technical problem that the eccentric position of the optical socket core in the related art is random, so that the optical socket core and the optical fiber jumper core are connected, resulting in high loss, is solved.
[0049] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0050] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a low insertion loss optical socket, and the low insertion loss optical socket 100 includes:
[0051] The pressing block 10 has a positioning surface 11, and a positioning mark 12 is provided on the positioning surface 11;
[0052] The core plug 20 is disposed in the pressing block 10, and an eccentric mark 21 is correspondingly provided on the core plug 20;
[0053] The socket optical fiber 30 is arranged in the ferrule 20, and the eccentricity mark 21 is used to mark the eccentricity of the socket fiber core of the socket optical fiber 30 after centering;
[0054] The positioning mark 12 is arranged corresponding to the eccentricity mark 21 , and the optical socket is installed on the optical module 200 through the positioning surface 11 , so that the core eccentricity of the socket corresponds to the core eccentricity of the optical fiber jumper 300 installed on the optical module 200 after centering.
[0055] It is worth noting that the utility model adjusts the eccentric position of the optical socket core to a fixed area so as to overlap and dock with the eccentric position fixed area of the jumper core after centering. Specifically, the ceramic ferrule 20 that has been polished through the optical fiber is adjusted to the fixed area by using the optical fiber connector centering instrument, and then a mark (i.e., eccentric mark 21) is made on the ceramic ferrule 20, and the eccentric mark 21 locates the eccentric fixed area of the socket core; then, the eccentric mark 21 on the ceramic ferrule 20 and the positioning mark 12 (i.e., flat position) of the pressing block 10 (i.e., structural member) are aligned and assembled to form a low insertion loss optical socket 100; finally, the positioning mark 12 on the pressing block 10 of the low insertion loss optical socket 100 is aligned and assembled with the bayonet of the optical module 200, ensuring that the eccentric fixed area of the socket core of the low insertion loss optical socket 100 and the eccentric fixed area of the jumper core of the optical fiber jumper 300 are in the same position, thereby reducing the insertion loss.
[0056] like Figure 3 As shown, the optical fiber core eccentricity of the socket is adjusted to a fixed area using an optical fiber connector centering instrument. After the adjustment is in place, a mark, namely an eccentricity mark 21, is made on the ceramic ferrule 20; then the eccentricity mark 21 of the ceramic ferrule 20 is aligned and assembled with the positioning mark 12 on the positioning surface 11 of the pressing block 10, and finally a low insertion loss optical socket 100 is formed.
[0057] Specifically, the pressing block 10 is a structural member, which is connected to the bayonet of the optical module 200 through at least one positioning surface 11 of the pressing block 10. Since the positioning mark 12 on the positioning surface 11 corresponds to the eccentric mark 21 on the ferrule 20, and the eccentric mark 21 is a mark made after the eccentricity of the socket core is adjusted by the optical fiber connector centering instrument, it is ensured that the deflection mark of the ferrule 20 corresponds to the eccentric position of the socket core, thereby realizing the alignment relationship of the positioning mark 12-deflection mark-eccentric position of the socket core, and the low insertion loss optical socket 100 is installed on the optical module 200 according to the positioning mark 12, and the eccentric position of the jumper core after the adjustment is completed is installed on the optical module 200 accordingly, thereby ensuring that the eccentric fixing area of the socket core and the eccentric fixing area of the jumper core are at the same position for docking, thereby ensuring the minimum loss of optical signals when transmitted between different components.
[0058] like Figure 4 As shown, Figure 4 According to the IEC standard, the fiber optic connector grades are divided into B, C, D and Fail grades, and the definition table is as follows:
[0059]
[0060] In an embodiment of the present invention, the eccentricity mark 21 at least covers a point on the boundary line of the position area formed by the eccentricity of the socket fiber core.
[0061] In an embodiment of the present invention, the eccentricity mark 21 is located at the midpoint of the boundary line of the position area formed by the eccentricity of the socket fiber core.
[0062] In an embodiment of the present invention, the position area formed by the eccentricity of the socket fiber core is in the shape of a fan, a semicircle or a polygon, so that the position areas formed by the eccentricity of the socket fiber core and the eccentricity of the jumper fiber core overlap.
[0063] like Figure 5 As shown, the left side of the figure shows the eccentric position of the socket fiber core of the socket optical fiber 30 before adjustment, and the right side of the figure shows the eccentric position of the socket fiber core of the socket optical fiber 30 after adjustment by the optical fiber connector centering instrument. In this embodiment, the position area formed by the eccentricity of the socket fiber core is fan-shaped (similar to a fan-shaped), and an eccentricity mark 21 is provided on the upper end of the socket optical fiber 30, which is indicated by a key.
[0064] In an embodiment of the present invention, the positioning surface 11 is flat, and the positioning mark 12 is located on the boundary line of the positioning surface 11 .
[0065] In an embodiment of the present utility model, the low insertion loss optical socket 100 further includes:
[0066] A sleeve is sleeved on the outside of the ferrule 20 and connected to the pressing block 10 ; the sleeve is used to limit the optical fiber jumper 300 .
[0067] Specifically, Figure 1 As shown, the low insertion loss optical socket 100 includes a pressing block 10, a ferrule 20, a socket ferrule 20, a sleeve and a front cover, and the front cover is connected to the pressing block 10. It should be noted that the assembly method of the low insertion loss optical socket 100 can be set to one or more of interference fit, welding assembly and gluing assembly.
[0068] In an embodiment of the present invention, the low insertion loss optical socket 100 further includes: a metal piece connected to the ferrule 20 , a connection mark is provided on the metal piece, and the connection mark is provided corresponding to the eccentricity mark 21 .
[0069] like Figure 6 As shown, when the ferrule 20 is assembled with the metal part, the eccentric mark 21 corresponds to the connection mark on the metal part. In another embodiment, the mark on the ferrule 20 can be marked on the metal part press-fitted with the ferrule 20, in which case the ferrule 20 and the metal part are integrally formed.
[0070] like Figure 7 As shown, the product type can be a fiber with an optical fiber, and the other end can be a capillary, a collimator, a bare fiber, or an angled bare fiber. It is understood that the low insertion loss optical receptacle 100 is at least used to connect Figure 7 One of the capillary (a), fiber collimator (b), fiber array (c), bare fiber bevel (d), bare fiber spherical surface (e), and polarization-maintaining fiber plug (f).
[0071] Based on the above embodiments, the utility model also provides an optical module 200, wherein the optical module 200 is applied to the low insertion loss optical socket 100 described in any of the above items, and is used to make the jumper fiber core eccentricity of the optical fiber jumper 300 after centering correspond to the eccentricity of the socket fiber core after centering; the optical module 200 is provided with a bayonet, and the bayonet is arranged corresponding to the positioning surface 11.
[0072] Specifically, the optical module 200 is provided with a bayonet to abut against the positioning surface 11, thereby ensuring that the positioning mark 12 of the positioning surface 11 is aligned and assembled with the optical module 200. Further, the bayonet is a plane bayonet, and there may be multiple bayonet, one of which is provided as a rectangular groove formed by two opposing baffles.
[0073] Based on the above embodiments, the present invention further provides an optical communication device, wherein the optical communication device comprises the low insertion loss optical socket 100 as described in any one of the above embodiments and the optical module 200 as described in the above embodiments.
[0074] In one embodiment of the present utility model, the optical communication device further includes:
[0075] An optical fiber connector centering instrument, used to eccentrically center the socket fiber core of the socket optical fiber 30 to a first fixed area, and eccentrically center the jumper fiber core of the jumper fiber core to a second fixed area, wherein the first fixed area has the same shape as the first fixed area; and / or
[0076] An optical fiber connector is provided, wherein the first fixing area overlaps with the second fixing area.
[0077] like Figure 8 As shown, the positioning mark 12 on the pressing block 10 is aligned with the optical module 200 bayonet to assemble the positioning area, and then the optical fiber jumper 300 that has been processed by the centering process is corresponding; Fig. 9 As shown, the eccentric fixing area of the socket fiber core and the eccentric fixing area of the jumper fiber core are at the same position and are butt-jointed.
[0078] The working principle of the optical communication device is described below:
[0079] First, adjust the eccentricity of the optical fiber core: by using a special centering instrument, adjust the eccentricity of the optical fiber core in the ceramic ferrule 20 that has been polished through the optical fiber to a fixed area. The purpose of this is to ensure that the position of the fiber core is as consistent as possible and reduce the signal loss caused by eccentricity;
[0080] Secondly, mark the ceramic ferrule 20: After adjusting the eccentric position of the fiber core, mark the ceramic ferrule 20. This mark is used to indicate that the eccentric position of the fiber core has been adjusted to a predetermined fixed area, so as to facilitate subsequent assembly work.
[0081] Reassemble the optical socket: align and assemble the marked ceramic ferrule 20 and the pressing block 10 to make an optical socket. The key here is to ensure that the mark on the ceramic ferrule 20 is correctly aligned with the flat position (mark) of the structural member to ensure the accuracy of the eccentric position of the fiber core.
[0082] Finally, assemble the optical module 200 bayonet: align and assemble the optical module 200 bayonet according to the flat position (mark) on the optical socket pressing block 10, and ensure that the eccentric fixing area of the optical socket optical fiber 30 and the eccentric fixing area of the optical jumper optical fiber core are in the same position. The purpose of this step is to ensure the minimum loss of optical signals when transmitting between different components.
[0083] This embodiment can accurately control the eccentric position of the optical fiber core and ensure that the loss of the optical signal during transmission is minimized through precise marking and alignment assembly. This is crucial for the performance of high-speed networks, because even a small loss may affect the quality and transmission distance of the signal. In addition, for single-mode optical fibers, due to their smaller core diameter, the requirements for the end face condition are more stringent, so this precise adjustment is particularly important.
[0084] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0085] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0087] It should be noted that: in this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0088] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A low insertion loss optical socket, characterized in that: The low insertion loss optical socket comprises: The pressing block has a positioning surface, and a positioning mark is provided on the positioning surface; An insert is arranged in the pressing block, and an eccentric mark is correspondingly arranged on the insert; A socket optical fiber is arranged in the ferrule, and the eccentricity mark is used to mark the eccentricity of the socket fiber core of the socket optical fiber after centering; The positioning mark is arranged corresponding to the eccentricity mark, and the optical socket is installed on the optical module through the positioning surface, so that the eccentricity of the socket core corresponds to the eccentricity of the jumper core of the optical fiber jumper installed on the optical module after centering.
2. The low insertion loss optical socket according to claim 1, characterized in that: The eccentricity mark at least covers a point on the boundary line of the position area formed by the eccentricity of the receptacle core.
3. The low insertion loss optical socket according to claim 2, characterized in that: The eccentricity mark is located at the midpoint of the boundary line of the position area formed by the eccentricity of the socket core.
4. The low insertion loss optical socket according to claim 1, characterized in that: The position area formed by the eccentricity of the socket fiber core is in the shape of a fan, a semicircle or a polygon, so that the position areas formed by the eccentricity of the socket fiber core and the eccentricity of the jumper fiber core overlap.
5. The low insertion loss optical socket according to claim 1, characterized in that: The positioning surface is flat, and the positioning mark is located on the boundary line of the positioning surface.
6. The low insertion loss optical receptacle according to claim 1, characterized in that: The low insertion loss optical socket also includes: A metal piece is connected to the insert core, and a connection mark is provided on the metal piece, and the connection mark is arranged corresponding to the eccentric mark.
7. The low insertion loss optical receptacle according to claim 1, characterized in that: The low insertion loss optical socket also includes: A sleeve is sleeved on the outside of the ferrule and connected to the pressing block; the sleeve is used to limit the position of the optical fiber jumper.
8. An optical module, characterized in that: The optical module is applied to the low insertion loss optical socket according to any one of claims 1-7, and is used to make the jumper fiber core eccentricity after the optical fiber jumper is aligned correspond to the eccentricity of the socket fiber core after the alignment; the optical module is provided with a bayonet, and the bayonet is arranged corresponding to the positioning surface.
9. An optical communication device, characterized in that: The optical communication device comprises the low insertion loss optical socket according to any one of claims 1 to 7 and the optical module according to claim 8.
10. The optical communication device according to claim 9, characterized in that: The optical communication device further comprises: An optical fiber connector centering instrument, used to eccentrically center the socket fiber core of the socket optical fiber to a first fixed area, and eccentrically center the jumper fiber core of the jumper fiber core to a second fixed area, wherein the first fixed area has the same shape as the first fixed area; and / or An optical fiber connector is provided, wherein the first fixing area overlaps with the second fixing area.