Optical fiber array end face coupling packaging structure

Abstract

The utility model discloses an optical fiber array end face coupling packaging structure, which relates to the field of optical fiber communication, and comprises a glass substrate and a glass cover plate, the top surface of the glass substrate is provided with a plurality of V-shaped grooves for placing optical fiber arrays, and one ends of two groups of optical fiber arrays are arranged in the V-shaped grooves and are in butt joint one by one; the glass cover plate is arranged on the top surface of the glass substrate and used for being matched with the glass substrate to fix the optical fiber array; and injecting optical glue into one side where the glass substrate and the glass cover plate are connected so as to bond and cure the two groups of butted optical fiber arrays. According to the utility model, the glass substrate with the V-shaped groove is used for bearing the two groups of optical fiber arrays, so that the two groups of optical fiber arrays are respectively arranged at the two sides of the glass substrate with the V-shaped groove and are matched with the glass cover plate to complete fixation, and the two groups of optical fiber arrays are positioned in the same V-shaped groove to complete butt joint coupling without professional coupling equipment, thereby not only improving the butt joint precision, but also improving the accuracy of butt joint. And the operation is simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication, and in particular to an optical fiber array end-face coupling packaging structure. Background Technology

[0002] An optical fiber coupler is a device that provides a detachable (movable) connection between optical fibers. It precisely aligns the two end faces of the fibers to maximize the coupling of light energy from the transmitting fiber to the receiving fiber, thus minimizing its impact on the system. Due to the small core diameter of optical fibers, the alignment and coupling between fiber arrays require even higher precision, often necessitating high-precision mechanical adjustment frames at the sub-micron level. This results in high equipment costs and low coupling efficiency.

[0003] Traditional coupling methods involve butt-joining two fiber optic connectors (FAs) and bonding the intermediate interface with optical adhesive. This method requires specialized coupling equipment to precisely control the end faces of the two FA fibers, resulting in high packaging costs and significant packaging difficulty. With the increasing prevalence of high-density optical interface technology, there are increasingly higher requirements for coupling accuracy in high-density fiber arrays. Therefore, achieving efficient and low-cost coupling packaging for high-density fiber arrays has become a problem that needs to be solved. This necessitates a new fiber coupling packaging method that not only reduces the significant costs associated with coupling packaging but also simplifies the process, improves coupling tolerance, and is suitable for high-density fiber array packaging. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an optical fiber array end-face coupling packaging structure to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a fiber array end-face coupling encapsulation structure, comprising:

[0006] The glass substrate has multiple V-shaped grooves on its top surface for placing fiber optic arrays. One end of each of the two fiber optic arrays is placed in the V-shaped grooves and connected one by one.

[0007] A glass cover plate is placed on the top surface of the glass substrate to help fix the fiber optic array to the glass substrate;

[0008] Optical adhesive is injected into the side where the glass substrate and glass cover plate are connected to bond and cure the two sets of fiber arrays after docking.

[0009] Preferably, the glass substrate has notches on both sides of its top surface, and the two notches form a protrusion in the middle of the top surface of the glass substrate.

[0010] Preferably, the notch is used to place the coated portion of the fiber array, thereby supporting the fiber array on the glass substrate.

[0011] Preferably, the V-groove is formed on the top surface of the protrusion, and the V-groove is used to place the portion of the fiber array whose coating has been removed.

[0012] Preferably, the glass cover is adapted to the size of the protrusion.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses a glass substrate with a V-groove to support two sets of fiber optic arrays. The two sets of fiber optic arrays are respectively located on both sides of the glass substrate with the V-groove and are fixed with a glass cover plate. This allows the two sets of fiber optic arrays to be docked and coupled within the same V-groove without the need for specialized coupling equipment. This not only improves docking accuracy but also makes the operation simpler and more convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a front view structural diagram of the present invention.

[0017] Figure 3 This is a top view of the glass substrate structure of this utility model.

[0018] The attached figures are labeled as follows: 1. Glass substrate; 2. V-groove; 3. Fiber optic array; 4. Glass cover plate; 5. Notch; 6. Protrusion. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0020] This utility model provides an end-face coupling and encapsulation structure for fiber optic arrays, such as... Figure 1-3 As shown, it includes: a glass substrate 1, a V-groove 2, an optical fiber array 3, and a glass cover plate 4.

[0021] The top surface of the glass substrate 1 has multiple V-grooves 2 for placing the fiber optic arrays 3, so that one end of each set of fiber optic arrays 3 is placed in the V-grooves 2 and connected one by one. Specifically, notches 5 are provided on both sides of the top surface of the glass substrate 1. The notches 5 are used to place the coated parts of the fiber optic arrays 3, so that the glass substrate 1 supports the fiber optic arrays 3, thereby improving the stability when the two sets of fiber optic arrays 3 are placed, and thus improving the accuracy of the connection and encapsulation of the two sets of fiber optic arrays 3. In addition, the two notches 5 form a protrusion 6 in the middle of the top surface of the glass substrate 1, and the V-grooves 2 are formed on the top surface of the protrusion 6 for placing the coated parts of the fiber optic arrays 3.

[0022] It can be explained here that the height of the protrusion 6 is just matched with the thickness of the coating of the fiber array 3, so that the uncoated fiber is placed in the V-groove 2 opened in the protrusion 6, and the V-groove 2 supports the uncoated fiber, further improving the stability when the two sets of fiber arrays 3 are placed, so as to ensure the accuracy of the docking and encapsulation of the two sets of fiber arrays 3.

[0023] A glass cover plate 4 is placed on the top surface of the glass substrate 1, and the size of the glass cover plate 4 is adapted to the protrusion 6 to help fix the fiber optic array 3 to the glass substrate 1. Then, optical adhesive is injected on the side where the glass substrate 1 and the glass cover plate 4 are connected to bond and cure the two sets of fiber optic arrays 3 after docking.

[0024] During encapsulation, the diced fiber array 3 is placed into one V-groove 2, and the same diced fiber array 3 is placed into the other side. The end faces of the two fiber arrays 3 are then aligned, and the glass cover plate 4 is used to fix them. Optical adhesive is injected on either side for bonding and curing, ensuring that the two fiber arrays 3 are coupled together within the same V-groove 2. This eliminates the need for specialized coupling equipment, improving alignment accuracy and simplifying the operation. Furthermore, the number of fiber cores can be adjusted based on the number of V-grooves 2 to achieve coupling encapsulation.

[0025] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A fiber optic array end-face coupling and packaging structure, characterized in that, include: A glass substrate (1) has multiple V-shaped grooves (2) on its top surface for placing fiber arrays (3). One end of each of the two fiber arrays (3) is placed in the V-shaped grooves (2) and they are connected one by one. A glass cover plate (4) is placed on the top surface of the glass substrate (1) to cooperate with the glass substrate (1) to fix the fiber array (3); Optical adhesive is injected into the side where the glass substrate (1) and the glass cover plate (4) are connected to bond and cure the two sets of fiber arrays (3) after docking.

2. The fiber array end-face coupling packaging structure according to claim 1, characterized in that: The glass substrate (1) has notches (5) on both sides of its top surface, and the two notches (5) form a protrusion (6) in the middle of the top surface of the glass substrate (1).

3. The fiber array end-face coupling packaging structure according to claim 2, characterized in that: The notch (5) is used to place the coated portion of the fiber array (3) so that the glass substrate (1) supports the fiber array (3).

4. The fiber array end-face coupling packaging structure according to claim 3, characterized in that: The V-groove (2) is formed on the top surface of the protrusion (6), and the V-groove (2) is used to place the part of the fiber array (3) with the coating removed.

5. The fiber array end-face coupling packaging structure according to claim 2, characterized in that: The glass cover (4) is sized to match the protrusion (6).

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