Polarization maintaining optical fiber array

Abstract

The utility model relates to the field of polarization maintaining optical fiber arrays, in particular to a polarization maintaining optical fiber array which comprises an array substrate, a cover plate is arranged at the top of the array substrate, polarization maintaining optical fibers are installed between the cover plate and the array substrate, the array substrate comprises a first substrate, a clamping groove and a limiting block, the clamping groove is formed in the first substrate, and the limiting block is arranged in the clamping groove. The limiting blocks are installed on the inner walls of the clamping grooves, the polarization maintaining optical fibers are located in inner cavities of the clamping grooves, the limiting blocks are used for limiting and fixing the polarization maintaining optical fibers, the number of the clamping grooves and the number of the limiting blocks are both multiple, and every two limiting blocks correspond to one clamping groove; the clamping groove is formed in the array substrate, the polarization maintaining optical fiber can be conveniently placed in the inner cavity of the clamping groove, the limiting block is arranged in the clamping groove, the clamping effect on the polarization maintaining optical fiber can be enhanced when the polarization maintaining optical fiber is placed in the clamping groove, the polarization maintaining optical fiber is made to be in a stable state, and the overturning phenomenon of the polarization maintaining optical fiber is avoided.

Description

Technical Field

[0001] The utility model relates to the field of polarization-maintaining optical fiber arrays, in particular to a polarization-maintaining optical fiber array. Background Art

[0002] In ordinary optical fibers, the polarization state of optical signals may change during propagation due to imperfect fiber symmetry and external environmental influences. However, polarization-maintaining fiber, through its unique structure and material design, such as the presence of two symmetrical stress zones within the fiber, can significantly reduce these effects, thereby maintaining the polarization stability of the optical signal.

[0003] When arraying polarization-maintaining optical fibers, a conventional optical fiber array method is usually adopted. A single optical fiber or optical fiber ribbon is mounted on an array substrate using a V-groove, and then a pressure cover is applied and glued together. However, for polarization-maintaining optical fibers, the angle of the array also needs to be paid attention to. Different angles will affect the transmission quality of the optical fiber. Therefore, when arraying polarization-maintaining optical fibers, it is necessary to ensure that the polarization-maintaining optical fibers are fixed at a predetermined angle. However, when installing a general optical fiber array structure, especially when the pressure cover is not applied, the optical fiber is in a loose state, which makes it easy for it to flip over. Utility Model Content

[0004] Based on the above description, the present invention provides a polarization-maintaining optical fiber array to solve the problem of the lack of preliminary fixation of the optical fibers during array installation in existing polarization-maintaining optical fibers.

[0005] The utility model provides a technical solution to the above-mentioned technical problem as follows: a polarization-maintaining optical fiber array, comprising an array substrate;

[0006] A cover plate is provided on the top of the array substrate, and a polarization-maintaining optical fiber is installed between the cover plate and the array substrate;

[0007] The array substrate includes a first substrate, a card slot and a limit block. The card slot is opened on the first substrate, the limit block is installed on the inner wall of the card slot, the polarization-maintaining optical fiber is located in the inner cavity of the card slot, and the limit block is used to limit and fix the polarization-maintaining optical fiber.

[0008] Furthermore, the number of the card slots and the limiting blocks are both several, and every two limiting blocks correspond to one card slot, and the two limiting blocks inside a card slot are symmetrically distributed on both sides of the inner wall of the card slot.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the cross section of the card slot is designed to be V-shaped, two limiting blocks are located on both side inner walls of the V-shaped card slot, and the polarization-maintaining optical fiber is located between the two limiting blocks.

[0011] Furthermore, the top of the limit block is designed to be arc-shaped, and the side of the limit block close to the polarization-maintaining optical fiber is designed to be an inclined surface.

[0012] Furthermore, the array substrate also includes a second substrate, one end of which is fixedly connected to one end of the first substrate, the front end of the polarization-maintaining optical fiber is inserted into the card slot of the first substrate, and the tail end of the polarization-maintaining optical fiber is located on the top of the second substrate.

[0013] Furthermore, the cover plate includes a plate body, a pressing groove and a pressing block, the pressing groove is opened at the bottom of the plate body, and the pressing block is installed in the inner wall of the pressing groove.

[0014] Furthermore, there are a plurality of pressing grooves, and the pressing grooves correspond to the card slots one by one, and the cross section of the pressing groove is designed to be V-shaped.

[0015] Furthermore, an installation groove is opened on the inner wall of the pressing groove, and the pressing block is fixedly installed in the inner cavity of the installation groove. Two pressing blocks are installed in one pressing groove, and the two pressing blocks are symmetrically distributed on the inner walls on both sides of the inner cavity of the pressing groove.

[0016] Furthermore, the side of the pressing block away from the pressing groove is attached to the outer wall of the polarization-maintaining optical fiber, and the side surface of the pressing block away from the pressing groove is provided with a tooth groove.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. The present invention provides a card slot on the array substrate to facilitate the placement of the polarization-maintaining optical fiber into the inner cavity of the card slot. The limit block provided in the card slot can enhance the clamping effect on the polarization-maintaining optical fiber when the polarization-maintaining optical fiber is placed, so that it is in a stable state and avoids the phenomenon of flipping.

[0019] 2. By opening a pressing groove on the cover plate to cooperate with the card slot, the polarization-maintaining optical fiber is pressed and fixed. The pressure block set in the pressing groove can increase the pressing force on the polarization-maintaining optical fiber to achieve a stronger fixing effect and ensure that the polarization-maintaining optical fiber can be in a stable state after being fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a polarization-maintaining optical fiber array provided in an embodiment of the present utility model;

[0021] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0022] Figure 3 It is a schematic diagram of the overall explosion of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover plate of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the array substrate of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Array substrate; 101. First substrate; 102. Second substrate; 103. Card slot; 104. Limit block; 2. Cover plate; 201. Board body; 202. Pressing groove; 203. Pressing block; 3. Polarization-maintaining optical fiber. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0029] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.

[0030] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the technical product is usually placed when in use. They are only for the convenience of describing the present technology and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technology. In addition, "first" and "second" are only used for descriptive purposes and cannot 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. Therefore, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0033] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0034] In the description of this technology, it should also be noted that, unless otherwise specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this technology based on the specific circumstances.

[0035] See also Figure 1 、 Figure 2 and Figure 5 , a polarization-maintaining optical fiber array, comprising an array substrate 1;

[0036] A cover plate 2 is provided on the top of the array substrate 1, and a polarization-maintaining optical fiber 3 is installed between the cover plate 2 and the array substrate 1;

[0037] The array substrate 1 includes a first substrate 101, a card slot 103 and a limit block 104. The card slot 103 is opened on the first substrate 101, and the limit block 104 is installed on the inner wall of the card slot 103. The polarization-maintaining optical fiber 3 is located in the inner cavity of the card slot 103, and the limit block 104 is used to limit and fix the polarization-maintaining optical fiber 3.

[0038] The card slot 103 opened on the array substrate 1 can limit the polarization-maintaining optical fiber 3, and a limiting block 104 is added inside the card slot 103, so that the polarization-maintaining optical fiber 3 is clamped between the two limiting blocks 104, thereby completing the preliminary fixation effect of the polarization-maintaining optical fiber 3, and preventing the polarization-maintaining optical fiber 3 from flipping when the next polarization-maintaining optical fiber 3 is installed, so that it can be in a stable state according to the required angle.

[0039] See also Figure 1 、 Figure 2 and Figure 5 In this embodiment, the number of the card slots 103 and the limiting blocks 104 are both several, and every two limiting blocks 104 correspond to one card slot 103 , and the two limiting blocks 104 inside a card slot 103 are symmetrically distributed on both sides of the inner wall of the card slot 103 .

[0040] See also Figure 2 and Figure 5 In this embodiment, the cross section of the slot 103 is designed to be V-shaped, the two limit blocks 104 are located on the inner walls on both sides of the V-shaped slot 103, and the polarization-maintaining optical fiber 3 is located between the two limit blocks 104.

[0041] Two limiting blocks 104 are provided, and the polarization-maintaining optical fiber 3 can be fixed by means of the cooperation between the two limiting blocks 104 .

[0042] See also Figure 1 and Figure 2 In this embodiment, the top of the limiting block 104 is designed to be arc-shaped, and the side of the limiting block 104 close to the polarization-maintaining optical fiber 3 is designed to be an inclined surface.

[0043] The curved side can reduce friction, making it easier to press the polarization-maintaining fiber 3 onto the inclined side of the limiting block 104 . The inclined surfaces on both sides of the two limiting blocks 104 are used to limit and fix the polarization-maintaining fiber 3 .

[0044] See also Figure 1 、 Figure 2 and Figure 5 The array substrate 1 of this embodiment also includes a second substrate 102, one end of the second substrate 102 is fixedly connected to one end of the first substrate 101, the front end of the polarization-maintaining optical fiber 3 is inserted into the card slot 103 of the first substrate 101, and the tail end of the polarization-maintaining optical fiber 3 is located at the top of the second substrate 102.

[0045] A second substrate 102 is provided at one end of the first substrate 101 , and the second substrate 102 can support the tail end of the polarization-maintaining optical fiber 3 .

[0046] See also Figure 2 、 Figure 3 and Figure 4The cover plate 2 of this embodiment includes a plate body 201 , a pressing groove 202 and a pressing block 203 . The pressing groove 202 is opened at the bottom of the plate body 201 , and the pressing block 203 is installed in the inner wall of the pressing groove 202 .

[0047] See also Figure 2 、 Figure 3 and Figure 4 In this embodiment, there are a plurality of pressing grooves 202 , and the pressing grooves 202 correspond to the card slots 103 one by one. The cross section of the pressing grooves 202 is designed to be V-shaped.

[0048] The pressing groove 202 cooperates with the clamping groove 103 to press and fix the top of the polarization-maintaining optical fiber 3 , thereby further improving the stability of the polarization-maintaining optical fiber 3 .

[0049] See also Figure 2 、 Figure 3 and Figure 4 In this embodiment, an installation groove is opened on the inner wall of the pressing groove 202, and the pressing block 203 is fixedly installed in the inner cavity of the installation groove. Two pressing blocks 203 are installed in one pressing groove 202, and the two pressing blocks 203 are symmetrically distributed on the inner walls on both sides of the inner cavity of the pressing groove 202.

[0050] The pressing block 203 is a rubber block. After the cover plate 2 is fastened, the pressing block 203 is pressed and fitted with the polarization-maintaining optical fiber 3 to enhance the fixing effect of the polarization-maintaining optical fiber 3 .

[0051] The cover plate 2 and the array substrate 1 can be fixedly installed by using conventional bolts and nuts.

[0052] See also Figure 2 、 Figure 3 and Figure 4 In this embodiment, the side of the pressing block 203 away from the pressing groove 202 is attached to the outer wall of the polarization-maintaining optical fiber 3, and the side surface of the pressing block 203 away from the pressing groove 202 is provided with a tooth groove.

[0053] The teeth and grooves on the pressing block 203 can enhance the friction on the pressing block 203, so that the pressing block 203 has a high friction effect when contacting the polarization-maintaining optical fiber 3, further enhancing the limiting effect on the polarization-maintaining optical fiber 3 and preventing the polarization-maintaining optical fiber 3 from flipping after installation.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A polarization-maintaining optical fiber array, comprising an array substrate (1), characterized in that: A cover plate (2) is provided on the top of the array substrate (1), and a polarization-maintaining optical fiber (3) is installed between the cover plate (2) and the array substrate (1); The array substrate (1) comprises a first substrate (101), a card slot (103) and a limiting block (104); the card slot (103) is provided on the first substrate (101); the limiting block (104) is mounted on the inner wall of the card slot (103); the polarization-maintaining optical fiber (3) is located in the inner cavity of the card slot (103); and the limiting block (104) is used to limit and fix the polarization-maintaining optical fiber (3).

2. The polarization-maintaining fiber array according to claim 1, wherein: The number of the slots (103) and the limiting blocks (104) is several, and every two limiting blocks (104) correspond to one slot (103). The two limiting blocks (104) inside one slot (103) are symmetrically distributed on both sides of the inner wall of the slot (103).

3. The polarization-maintaining fiber array according to claim 1, wherein: The cross section of the card slot (103) is designed to be V-shaped, two limiting blocks (104) are located on two side inner walls of the V-shape of the card slot (103), and the polarization-maintaining optical fiber (3) is located between the two limiting blocks (104).

4. The polarization-maintaining fiber array according to claim 1, wherein: The top of the limiting block (104) is designed to be arc-shaped, and the side of the limiting block (104) close to the polarization-maintaining optical fiber (3) is designed to be an inclined surface.

5. The polarization-maintaining fiber array according to claim 1, characterized in that: The array substrate (1) further comprises a second substrate (102), one end of the second substrate (102) being fixedly connected to one end of the first substrate (101), the front end of the polarization-maintaining optical fiber (3) being inserted into the card slot (103) of the first substrate (101), and the tail end of the polarization-maintaining optical fiber (3) being located on the top of the second substrate (102).

6. The polarization-maintaining fiber array according to claim 1, characterized in that: The cover plate (2) comprises a plate body (201), a pressing groove (202) and a pressing block (203); the pressing groove (202) is opened at the bottom of the plate body (201); and the pressing block (203) is installed in the inner wall of the pressing groove (202).

7. The polarization-maintaining optical fiber array according to claim 6, characterized in that: There are a plurality of pressing grooves (202), and the pressing grooves (202) correspond to the card slots (103) one by one. The cross section of the pressing groove (202) is designed to be V-shaped.

8. The polarization-maintaining optical fiber array according to claim 6, characterized in that: The inner wall of the pressing groove (202) is provided with a mounting groove, and the pressing block (203) is fixedly mounted in the inner cavity of the mounting groove. Two pressing blocks (203) are mounted in one pressing groove (202), and the two pressing blocks (203) are symmetrically distributed on the inner walls on both sides of the inner cavity of the pressing groove (202).

9. The polarization-maintaining optical fiber array according to claim 6, characterized in that: The side of the pressing block (203) away from the pressing groove (202) is attached to the outer wall of the polarization-maintaining optical fiber (3), and a tooth groove is provided on the side surface of the pressing block (203) away from the pressing groove (202).

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