10G / 25G SR optical engine coupling chuck

Abstract

The utility model relates to a 10G / 25G SR optical engine coupling chuck which comprises a first substrate and a second substrate which are connected, and the first substrate is provided with a plurality of air suction holes used for sucking TX lenses and RX lenses respectively. And a positioning structure is fixed on the second substrate, wherein the positioning structure is used for enabling the axes of the LC optical port on the TX lens and the LC optical port on the RX lens to be kept parallel and the distance between the axes is 6.25 + / -0.003 mm when the TX lens and the RX lens are respectively sucked by the suction holes. The device has the beneficial effects that the TX lens and the RX lens can be simultaneously sucked at one time, so that the TX lens and the RX lens can be simultaneously coupled by only one automatic coupling machine, the cost is effectively reduced, and when the TX lens and the RX lens are sucked, the axis distance between the LC optical port on the TX lens and the LC optical port on the RX lens is kept at an expected value by virtue of the positioning structure, so that the production efficiency is improved. And the LC optical port on the TX lens and the LC optical port on the RX lens are kept parallel in axis.

Description

Technical Field

[0001] The utility model relates to the technical field of optical engine production, and in particular to a 10G / 25G SR optical engine coupling chuck. Background Art

[0002] The 10G or 25G SR optical engine includes: PCB board, TX lens and RX lens. Since the TX lens usually needs to be treated with light attenuation, the lowest cost solution is to add carbon powder during injection molding. The RX lens cannot be treated with light attenuation, otherwise it will lead to low responsiveness and low sensitivity. Therefore, the TX lens and the RX lens are separated. At present, the TX lens and the RX lens of the 10G or 25G SR optical engine are coupled separately, that is, there are two coupling chucks to absorb / clamp the TX lens or the RX lens respectively, and then the two coupling chucks are respectively connected to two automatic coupling machines, and the lenses are coupled by the two automatic coupling machines. Usually, in order to save time, the two automatic coupling machines are coupled at the same time. This method has the following defects:

[0003] 1) Two automatic coupling machines are required, which is costly;

[0004] 2) There is a gap error when the two automatic coupling machines absorb / clamp the lens (for example, the TX lens or RX lens is not completely close to the coupling chuck, the LC ferrule of the TX lens or RX lens is not completely inserted into the lens, etc.), which can easily lead to a large relative position error between the TX lens and the RX lens, especially the axial distance of 6.25mm between the LC optical port on the TX lens and the LC optical port on the RX lens, and the parallel angle of the LC optical port on the TX lens and the LC optical port on the RX lens are difficult to guarantee, resulting in difficulty in plugging and unplugging the double LC jumper after the subsequent module assembly housing. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a 10G / 25G SR optical engine coupling chuck to overcome the deficiencies in the above-mentioned prior art.

[0006] The utility model solves the above technical problems with the following technical solutions: A 10G / 25G SR optical engine coupling chuck, comprising: a horizontally distributed first substrate and a second substrate arranged below the first substrate and fixed to the first substrate at its upper end, the first substrate being provided with a plurality of suction holes for respectively absorbing a TX lens and an RX lens, and a positioning structure being fixed on the second substrate for keeping the axes of the LC optical ports on the TX lens and the LC optical ports on the RX lens parallel to each other when the TX lens and the RX lens are respectively absorbed by the suction holes, and the axis spacing being 6.25±0.003mm.

[0007] The beneficial effects of the utility model are as follows: the 10G / 25G SR optical engine coupling chuck can absorb the TX lens and the RX lens at the same time, so only one automatic coupling machine is needed to couple the TX lens and the RX lens at the same time, which effectively reduces the cost compared with the two automatic coupling machines in the prior art. In addition, since the TX lens and the RX lens can be absorbed at the same time, there is no gap error, so as to avoid a large relative position error between the TX lens and the RX lens. Moreover, when absorbing the TX lens and the RX lens, the axial distance between the LC optical port on the TX lens and the LC optical port on the RX lens is maintained at 6.25±0.003mm by relying on the positioning structure, and the axial distance between the LC optical port on the TX lens and the LC optical port on the RX lens is maintained parallel to the LC optical port on the TX lens, so as to effectively ensure the coupling quality, avoid the difficulty of plugging and unplugging the double LC jumper after the subsequent module assembly housing, and adapt to low-cost, large-volume, high-quality production.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the positioning structure includes: two LC ferrules and two positioning holes opened on the second substrate, the axes of the two positioning holes are parallel and the axis spacing is 6.25±0.003mm; an LC ferrule is coaxially inserted in each positioning hole, and the LC ferrule is fixed to the second substrate.

[0010] The above further beneficial effects are: the structure is simple, and it can be effectively matched with the LC optical port to complete the positioning.

[0011] Furthermore, the angular error of each positioning hole is ±0.05°.

[0012] Furthermore, the number of suction holes opened on the first substrate is two, and the two suction holes are used to absorb the TX lens and the RX lens respectively.

[0013] A further beneficial effect of adopting the above method is that when two air suction holes can meet the suction requirement, setting the number of air suction holes to two can reduce the number of opening holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a 10G / 25G SR optical engine coupling chuck in the utility model;

[0015] Figure 2 It is a cross-sectional view of the 10G / 25G SR optical engine coupling chuck in the utility model;

[0016] Figure 3 This is an overall stereogram of the 10G / 25G SR optical engine coupling chuck in the utility model when absorbing the TX lens and the RX lens;

[0017] Figure 4 This is the overall front view of the 10G / 25G SR optical engine coupling chuck when absorbing the TX lens and the RX lens in the utility model;

[0018] Figure 5 This is an overall top view of the 10G / 25G SR optical engine coupling chuck when absorbing the TX lens and the RX lens in the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. First substrate, 110. Air intake hole, 2. Second substrate, 3. Positioning structure, 310. LC ferrule, 320. Positioning hole, 4. TX lens, 5. RX lens, 6. LC optical port. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] like Figure 1 , Figure 2 As shown, a 10G / 25G SR optical engine coupling chuck includes: a first substrate 1 and a second substrate 2, wherein the first substrate 1 is horizontally distributed, the second substrate 2 is arranged below the first substrate 1, and the upper end of the second substrate 2 is fixed to the first substrate 1. At this time, the first substrate 1 and the second substrate 2 can form a T shape or an inverted L shape, and the shape formed in the drawings shown in the utility model is an inverted L shape;

[0024] A plurality of suction holes 110 are provided on the first substrate 1. When the suction holes 110 are connected to a vacuum suction device, the TX lens 4 and the RX lens 5 can be sucked respectively. A positioning structure 3 is fixed on the second substrate 2. When the TX lens 4 and the RX lens 5 are sucked respectively by the suction holes 110, the axis of the LC optical port 6 on the TX lens 4 and the axis of the LC optical port 6 on the RX lens 5 can be kept parallel through the positioning structure 3, and the axis distance between the LC optical port 6 on the TX lens 4 and the axis distance between the LC optical port 6 on the RX lens 5 is 6.25±0.003mm.

[0025] like Figure 3 , Figure 4 , Figure 5As shown, the 10G / 25G SR optical engine coupling chuck can absorb the TX lens 4 and the RX lens 5 at the same time, so only one automatic coupling machine is needed to couple the TX lens 4 and the RX lens 5 at the same time, which effectively reduces the cost compared with the two automatic coupling machines in the prior art. In addition, since the TX lens 4 and the RX lens 5 can be absorbed at the same time, there is no gap error, so as to avoid a large relative position error between the TX lens and the RX lens. Moreover, when absorbing the TX lens 4 and the RX lens 5, the axial distance between the LC optical port 6 on the TX lens 4 and the LC optical port 6 on the RX lens 5 is maintained at 6.25±0.003mm by relying on the positioning structure 3, and the LC optical port on the TX lens is parallel to the LC optical port on the RX lens, so as to effectively ensure the coupling quality, avoid the difficulty of plugging and unplugging the double LC jumper after the subsequent module assembly housing, and adapt to low-cost, large-volume, high-quality production.

[0026] Example 2

[0027] like Figure 1 , Figure 2 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0028] The positioning structure 3 includes: two LC ferrules 310 and two positioning holes 320 opened on the second substrate 2. The axes of the two positioning holes 320 are parallel, and the axis spacing of the two positioning holes 320 is 6.25±0.003mm. The two positioning holes 320 are processed by high-precision processing technology. An LC ferrule 310 is coaxially inserted in each positioning hole 320, and the LC ferrule 310 is fixed to the second substrate 2. The LC ferrule 310 is plugged into the LC optical port 6, and the angular error of each positioning hole 320 is ±0.05°.

[0029] Example 3

[0030] like Figure 2 As shown, this embodiment is a further improvement on the basis of Embodiment 1 or 2, and the details are as follows:

[0031] There are two suction holes 110 opened on the first substrate 1, and the two suction holes 110 are connected to a vacuum suction device to absorb the TX lens 4 and the RX lens 5 respectively. When two suction holes 110 can meet the suction requirements, setting the number of suction holes to two can reduce the number of openings.

[0032] 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 / 25G SR optical engine coupling chuck, characterized in that: include: A first substrate (1) is arranged horizontally, and a second substrate (2) is arranged below the first substrate (1) and the upper end of which is fixed to the first substrate (1). The first substrate (1) is provided with a plurality of suction holes (110) for respectively sucking a TX lens (4) and an RX lens (5). The second substrate (2) is fixed with a positioning structure (3) for keeping the axes of the LC optical port (6) on the TX lens (4) and the LC optical port (6) on the RX lens (5) parallel to each other when the TX lens (4) and the RX lens (5) are respectively sucked by the suction holes (110), and the spacing between the axes is 6.25±0.003 mm.

2. The 10G / 25G SR optical engine coupling chuck according to claim 1, characterized in that: The positioning structure (3) comprises: two LC ferrules (310) and two positioning holes (320) provided on the second substrate (2); the axes of the two positioning holes (320) are parallel and the distance between the axes is 6.25±0.003 mm; an LC ferrule (310) is coaxially inserted into each positioning hole (320), and the LC ferrule (310) is fixed to the second substrate (2).

3. The 10G / 25G SR optical engine coupling chuck according to claim 2, characterized in that: The angular error of each positioning hole (320) is ±0.05°.

4. The 10G / 25G SR optical engine coupling chuck according to claim 1, characterized in that: The number of the suction holes (110) opened on the first substrate (1) is two, and the two suction holes (110) are used to absorb the TX lens (4) and the RX lens (5) respectively.

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