10G or 25G AOC optical module
By opening two through holes in the LC optical port and adding glue to it, the optical fiber LC ceramic ferrule core with the LC optical port is bonded and fixed, which solves the problem of inclination angle caused by bending stress in the existing AOC optical module, and significantly improves the yield and stability of the optical power of the optical module.
Patent Information
- Application Number
- CN202421942601.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In existing 10G or 25G AOC optical modules, the fiber-optic LC ceramic ferrule is affected by bending stress due to the limited size, which causes a slight force to drive it to produce an inclination angle under the lever principle, resulting in a slight gap and dislocation between the fiber core and the LC optical port of the lens, which in turn deteriorates the optical power and light return loss.
Two through holes are each opened on the outer peripheral surface of the LC optical port. The through holes are located between the outlet of the LC optical port and the end surface of the optical port with optical fiber LC ceramic ferrule with optical fiber, and glue is placed in the through hole to bond and fix the optical fiber LC ceramic ferrule with optical fiber and the LC optical port. Combined with the glue at the outlet of the LC optical port, there are 3 dispensing fixing points in the length direction between the optical fiber LC ceramic ferrule with optical fiber and the LC optical port of the lens.
By adding through holes and glue, the fixing effect is better, avoiding the inclination angle of the LC ceramic ferrule with optical fiber due to slight force, reducing the gap and misalignment between the core and the lens, and significantly improving the yield of the optical module. It is especially suitable for products with small lens optical path tolerance.
Smart Images
Figure CN222882884U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of AOC optical modules, in particular to a 10G or 25G AOC optical module. Background Art
[0002] In the traditional 10G or 25G AOC optical module, after the optical port end with the fiber LC ceramic ferrule is plugged into the LC optical port of the lens, a little glue is applied at the exit of the LC optical port to bond and fix the LC optical port with the fiber LC ceramic ferrule to the LC optical port of the lens. Figure 1 As shown in the figure, this solution has the following disadvantages: Due to the limited size of the AOC module, the pigtail with the fiber LC ceramic ferrule is inevitably affected by bending stress, and its bending force will generate upward or downward force, such as Figure 2 As shown, because the LC ceramic ferrule with fiber and the LC optical port of the lens are fixed at a single point with glue, a slight force under the principle of leverage drives the LC ceramic ferrule with fiber to produce a slight tilt angle, resulting in a tiny gap and misalignment between the fiber core of the LC ceramic ferrule with fiber and the LC optical port of the lens, thereby deteriorating the optical power and optical return loss, resulting in poor performance of some products, especially at high and low temperatures, which will amplify the proportion of poor performance. Utility Model Content
[0003] The technical problem to be solved by the present invention is to provide a 10G or 25G AOC optical module to overcome the deficiencies in the above-mentioned prior art.
[0004] The utility model solves the above technical problems with the following technical solutions: a 10G or 25G AOC optical module, comprising: a lens and an LC ceramic ferrule with an optical fiber, wherein the optical port end of the LC ceramic ferrule with an optical fiber is inserted into the LC optical port of the lens, a glue for bonding and fixing the LC ceramic ferrule with an optical fiber to the LC optical port is applied at the outlet of the LC optical port, a through hole is respectively opened above and below the LC ceramic ferrule with an optical fiber on the outer peripheral surface of the LC optical port, the through hole is between the outlet of the LC optical port and the optical port end face of the LC ceramic ferrule with an optical fiber, and a glue for bonding and fixing the LC ceramic ferrule with an optical fiber to the LC optical port is applied in the through hole.
[0005] The beneficial effect of the utility model is as follows: by opening two additional through holes on the LC optical port, and applying glue in both through holes to bond and fix the LC ceramic ferrule with optical fiber to the LC optical port, and combining with the glue applied at the outlet of the LC optical port, there are three glue-applying fixing points in the length direction between the LC ceramic ferrule with optical fiber and the LC optical port of the lens, so as to achieve a better fixing effect, so as to avoid a slight tilt angle of the LC ceramic ferrule with optical fiber caused by a slight force under the lever principle, thereby causing a small gap and misalignment between the fiber core of the LC ceramic ferrule with optical fiber and the LC optical port of the lens, thereby deteriorating the optical power and optical return loss, and greatly improving the yield rate, and being particularly suitable for products with small optical path tolerance of the lens.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows.
[0007] Furthermore, the diameter of the through hole is 0.4 mm to 0.8 mm.
[0008] Furthermore, the through hole is a tapered hole, and the large diameter end of the tapered hole faces outwards.
[0009] A further beneficial effect of the above method is that it is convenient to dispense glue into the through hole.
[0010] Furthermore, the two through holes opened on the LC optical port are coaxially distributed.
[0011] Furthermore, the through hole opened on the LC optical port is located near the center point in the length direction thereof.
[0012] The above further beneficial effect is: if the through hole is too close to the exit of the LC optical port, the lever arm will still be relatively long; if the through hole is too close to the end face of the optical port of the LC ceramic ferrule with optical fiber (i.e., the rightmost end face), there is a risk of glue overflow and blocking the fiber core. Choosing to make the through hole on the LC optical port near the center point in its length direction can effectively reduce the length of the lever arm, thereby greatly improving the fixing effect.
[0013] Furthermore, the distance between the through hole on the LC optical port and its outlet is greater than 1.5 mm, and the distance between the through hole on the LC optical port and the end face of the optical port of the LC ceramic ferrule with optical fiber is 1 mm to 1.5 mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural diagram of a 10G or 25G AOC optical module in the prior art;
[0015] Figure 2 A structural diagram of a 10G or 25G AOC optical module in the prior art in which a pigtail is subjected to upward bending stress;
[0016] Figure 3 This is a structural diagram of a 10G or 25G AOC optical module in the present invention;
[0017] Figure 4 for Figure 3 Structural diagram when no glue is applied to the through hole on the LC optical port.
[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0019] 1. Lens, 110, LC optical port, 111, through hole, 2. LC ceramic ferrule with optical fiber, 3. Glue. DETAILED DESCRIPTION
[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0021] Example 1
[0022] like Figure 3 , Figure 4 As shown, a 10G or 25G AOC optical module includes: a lens 1 and an LC ceramic ferrule 2 with an optical fiber, wherein the optical port end of the LC ceramic ferrule 2 with an optical fiber is inserted into the LC optical port 110 of the lens 1, and a glue 3 for bonding and fixing the LC ceramic ferrule 2 with an optical fiber to the LC optical port 110 is applied at the exit of the LC optical port 110;
[0023] A through hole 111 is formed on the outer peripheral surface of the LC optical port 110 above and below the LC ceramic ferrule 2 with optical fiber. The through hole 111 is located between the outlet of the LC optical port 110 and the optical port end face of the LC ceramic ferrule 2 with optical fiber. Glue 3 is applied in the through hole 111 to bond and fix the LC ceramic ferrule 2 with optical fiber to the LC optical port 110.
[0024] Two additional through holes 111 are opened on the LC optical port 110, and glue 3 is applied in both through holes 111 to bond and fix the LC ceramic ferrule 2 with optical fiber to the LC optical port 110, and combined with the glue applied at the outlet of the LC optical port 110, there are three glue-application fixing points in the length direction between the LC ceramic ferrule 2 with optical fiber and the LC optical port 110 of the lens 1, so as to achieve a better fixing effect, so as to avoid a slight tilt angle of the LC ceramic ferrule 2 with optical fiber caused by a slight force under the lever principle, thereby causing a small gap and misalignment between the fiber core of the LC ceramic ferrule 2 with optical fiber and the LC optical port 110 of the lens 1, thereby deteriorating the optical power and optical return loss, thereby greatly improving the yield rate, and being particularly suitable for products with small lens optical path tolerance.
[0025] Example 2
[0026] like Figure 4 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:
[0027] The diameter of the through hole 111 is preferably 0.4 mm to 0.8 mm, which can accommodate a sufficient amount of glue to ensure a firm bond, and the through hole 111 is preferably a tapered hole with the large diameter end of the tapered hole facing outwards, which facilitates dispensing glue into the through hole 111.
[0028] Example 3
[0029] like Figure 3 , Figure 4 As shown, this embodiment is a further improvement on the basis of Embodiment 1 or 2, and the details are as follows:
[0030] The two through holes 111 opened on the LC optical port 110 are coaxially distributed, which is convenient for processing. In addition, the through hole 111 opened on the LC optical port 110 is located near the center point of the length direction of the LC optical port 110. If the through hole 111 is too close to the exit of the LC optical port 110, the lever arm is still relatively long. If the through hole 111 is too close to the end face of the optical port end of the LC ceramic ferrule 2 with optical fiber (i.e., the end face on the far right), there is a risk of overflowing glue and blocking the fiber core. The through hole 111 opened on the LC optical port 110 is located near the center point of the length direction of the LC optical port 110, which can effectively reduce the length of the lever arm and greatly improve the fixing effect. Furthermore, the distance between the through hole 111 opened on the LC optical port 110 and its exit is greater than 1.5 mm, and the distance between the through hole 111 opened on the LC optical port 110 and the end face of the optical port end of the LC ceramic ferrule 2 with optical fiber is 1 mm to 1.5 mm.
[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A 10G or 25G AOC optical module, comprising: A lens (1) and an LC ceramic ferrule (2) with an optical fiber, wherein the optical port end of the LC ceramic ferrule (2) with an optical fiber is inserted into the LC optical port (110) of the lens (1), and glue (3) for bonding and fixing the LC ceramic ferrule (2) with an optical fiber and the LC optical port (110) is applied at the outlet of the LC optical port (110), characterized in that a through hole (111) is respectively opened above and below the LC ceramic ferrule (2) with an optical fiber on the outer peripheral surface of the LC optical port (110), and the through hole (111) is located between the outlet of the LC optical port (110) and the optical port end face of the LC ceramic ferrule (2) with an optical fiber, and glue (3) for bonding and fixing the LC ceramic ferrule (2) with an optical fiber and the LC optical port (110) is applied inside the through hole (111).
2. A 10G or 25G AOC optical module according to claim 1, characterized in that: The through hole (111) has a diameter of 0.4 mm to 0.8 mm.
3. A 10G or 25G AOC optical module according to claim 1 or 2, characterized in that: The through hole (111) is a tapered hole, with the large diameter end of the tapered hole facing outwards.
4. A 10G or 25G AOC optical module according to claim 1, characterized in that: The two through holes (111) opened on the LC optical port (110) are coaxially distributed.
5. The 10G or 25G AOC optical module according to claim 1, characterized in that: The through hole (111) opened on the LC optical port (110) is located near the center point in the length direction thereof.
6. A 10G or 25G AOC optical module according to claim 5, characterized in that: The distance between the through hole (111) opened on the LC optical port (110) and its outlet is greater than 1.5 mm, and the distance between the through hole (111) opened on the LC optical port (110) and the end surface of the optical port of the LC ceramic ferrule (2) with optical fiber is 1 mm to 1.5 mm.