Pluggable fiber fa-cpo interface package structure and method

Abstract

The application provides a pluggable optical fiber FA-CPO interface packaging structure and method. The packaging structure comprises a base, an optical fiber array, a PIN pin and a collimating lens. The base is made of glass, and a first positioning groove is arranged on the top surface of the base. The optical fiber array comprises a pressing block and a plurality of optical fibers. The pressing block is provided with a mounting groove and a second positioning groove, and the plurality of optical fibers are assembled in the mounting groove and are bonded by an adhesive. The PIN pin is fixedly installed on the base and is in butt joint with the pressing block. Alternatively, the PIN pin is fixedly installed on the pressing block and is in pluggable connection with the base. The collimating lens is installed on the base and is coupled with the plurality of optical fibers. One of the first positioning groove and the second positioning groove is fixedly connected with the PIN pin, and the other is in pluggable connection with the PIN pin. The coupling of the optical fiber and the collimating lens is realized, so as to solve the problem that the length of the insertion hole for accommodating the PIN pin cannot be directly machined on the glass base, and the position accuracy of the PIN pin can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a pluggable fiber FA-CPO interface packaging structure and method. BACKGROUND

[0002] In the field of optical communication, the traditional connection method is called pluggable. The optical engine is a pluggable optical module. After the optical fiber comes, it is inserted into the optical module, and then sent to the network switching chip through the SerDes (SERializer (serial) / DESerializer (de-serializer) channel. CPO, the full name of English, Co-Packaged Optics, optical / electro-optical co-packaging, is to assemble the network switching chip and the optical engine together in the same Socketed (socket), forming a co-packaging of chips and modules. MPO, the full name of English, Multi-fiber Push On, is a multi-fiber connector composed of multiple optical fibers.

[0003] The traditional MPO / CPO interface uses a plastic base or a glass base. When combined, the PIN pin needs to be connected with the FA (the full name of English Fiber Array). However, the plastic base is not resistant to high temperature, resulting in a change in the position accuracy between the insertion holes of the plastic base carrying the PIN pin when heated. When the fiber array FA and the PIN pin are configured on the glass base, the glass is resistant to high temperature but brittle, and cannot be directly machined to have insertion holes that can accommodate the length of the PIN pin. SUMMARY

[0004] Therefore, the present application provides a pluggable fiber FA-CPO interface packaging structure and method to solve the technical problems of the plastic base not being resistant to high temperature, resulting in a change in the position accuracy between the insertion holes of the plastic base carrying the PIN pin when heated; and the glass base being resistant to high temperature but brittle, and not being able to be directly machined to have insertion holes that can accommodate the length of the PIN pin.

[0005] The technical solution of the present application is as follows:

[0006] In a first aspect, the present application provides a pluggable fiber FA-CPO interface packaging structure, comprising a base, a fiber array, a PIN pin, and a collimating lens, wherein:

[0007] The base is made of glass material, and a first positioning groove is arranged on the top surface of the base;

[0008] The fiber array comprises a pressing block and a plurality of optical fibers. The pressing block is provided with a mounting groove and a second positioning groove, and the plurality of optical fibers are assembled in the mounting groove and are bonded by an adhesive;

[0009] The PIN needle is fixedly installed on the base and is in butt joint with the pressing block, or the PIN needle is fixedly installed on the pressing block and is in pluggable connection with the base.

[0010] The first positioning slot and the second positioning slot, one of which is used for fixed connection with the PIN needle, and the other is used for pluggable connection with the PIN needle.

[0011] The collimating lens is installed on the base and is coupled with the plurality of optical fibers.

[0012] On the basis of the above technical scheme, preferably, the PIN needle is fixedly installed in the first positioning slot of the base, the PIN needle is inserted into the second positioning slot, and the pressing block is coveringly installed on the base so that the inner wall of the second positioning slot abuts against and compresses the PIN needle.

[0013] On the basis of the above technical scheme, preferably, the cover plate is further provided, the cover plate is provided with a third positioning slot, the cover plate is coveringly installed on the base, the third positioning slot is oppositely arranged with the first positioning slot to form a clamping hole for clamping and fixing the PIN needle, and the PIN needle is used for pluggable connection with the clamping hole.

[0014] The optical fiber array further comprises a base, the base is provided with a fourth positioning slot, the PIN needle is fixedly installed in the fourth positioning slot of the base, the pressing block is connected with the base, and the second positioning slot is oppositely arranged with the fourth positioning slot so that the inner wall of the second positioning slot abuts against and compresses the PIN needle.

[0015] On the basis of the above technical scheme, preferably, the diameter accuracy of the PIN needle is within ±0.1 um, the position accuracy of the PIN needle is within ±3 um, and the position accuracy of the optical fiber needs to be within ±0.5 um.

[0016] On the basis of the above technical scheme, preferably, the coupling of the collimating lens and the optical fiber needs to satisfy that the offset amount of the light beam center position in the X direction and the offset amount in the Y direction are both within ±5 um.

[0017] On the basis of the above technical scheme, preferably, the cross section of the first positioning slot, the third positioning slot, the fourth positioning slot and the second positioning slot is V-shaped or semicircular.

[0018] On the basis of the above technical scheme, preferably, the cross section of the installation slot is V-shaped or semicircular.

[0019] Based on the above technical solutions, preferably, it also includes a converging lens, which is mounted on the base and coupled to the multiple optical fibers, and the converging lens is located on the side of the collimating lens away from the base.

[0020] Based on the above technical solutions, preferably, the top surface of the base away from the cover plate is provided with an adhesive part, which is used to bond the PIC chip.

[0021] Secondly, this invention proposes a pluggable fiber optic FA-CPO interface encapsulation method, using the pluggable fiber optic FA-CPO interface encapsulation structure as described in the first aspect, including:

[0022] Mount the collimating lens on the base;

[0023] Multiple optical fibers are assembled into the mounting slot and bonded together with adhesive.

[0024] The PIN pin is fixedly installed in one of the first positioning groove and the second positioning groove;

[0025] Insert the PIN pin into the other of the first positioning slot and the second positioning slot to couple the collimating lens with the optical fiber.

[0026] The pluggable fiber optic FA-CPO interface packaging structure and method of the present invention have the following advantages over the prior art:

[0027] (1) The base is made of glass and a first positioning groove is provided on the top surface of the base; the pressure block is provided with an installation groove and a second positioning groove. Multiple optical fibers are assembled in the installation groove and bonded by adhesive. One of the first positioning groove and the second positioning groove is used to fix the PIN pin and the other is pluggable to the PIN pin, so as to realize the coupling between the optical fiber and the collimating lens on the base, so as to solve the problem that the glass base cannot be directly processed with a hole that can accommodate the length of the PIN pin, and at the same time, the positional accuracy of the PIN pin can be guaranteed.

[0028] (2) The PIN pin is fixedly installed in the first positioning groove of the base, the PIN pin is inserted into the second positioning groove, and the pressure block is installed on the base so that the inner wall of the second positioning groove abuts and presses the PIN pin, thereby realizing the positioning and connection between the base and the fiber array, and thus realizing the coupling between the fiber and the collimating lens on the base;

[0029] (3) The PIN pin is fixedly installed in the fourth positioning groove of the base. The pressure block is connected to the base. The inner wall of the second positioning groove contacts and presses the PIN pin to fix it. The cover plate is fixedly connected to the base to form the clamping hole. The PIN pin is inserted into the clamping hole to realize the positioning and connection between the base and the fiber array, thereby realizing the coupling between the fiber and the collimating lens on the base.

[0030] (4) The diameter accuracy of the PIN pin is within ±0.1um, the position accuracy of the PIN pin is within ±3um, and the position accuracy of the optical fiber is within ±0.5um, so that the coupling between the collimating lens and the optical fiber meets the accuracy requirements after the PIN pin is connected to the base and the optical fiber array.

[0031] (5) The cross-sections of the first positioning groove, the second positioning groove, the third positioning groove and the fourth positioning groove are V-shaped or semi-circular, which facilitates the pressing of the PIN pin and makes it easier to slot on the glass base, thus improving the processing convenience of the device. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a perspective view of a pluggable fiber optic FA-CPO interface packaging structure according to an embodiment of the present invention;

[0034] Figure 2 This is an exploded view of a pluggable fiber optic FA-CPO interface packaging structure according to an embodiment of the present invention;

[0035] Figure 3 For the present invention Figure 1 A schematic diagram of the base structure;

[0036] Figure 4 For the present invention Figure 1 A schematic diagram of the fiber optic array structure in the diagram;

[0037] Figure 5 This is a perspective view of another pluggable fiber optic FA-CPO interface packaging structure according to an embodiment of the present invention.

[0038] Figure 6 This is an exploded view of another pluggable fiber optic FA-CPO interface packaging structure in an embodiment of the present invention;

[0039] Figure 7 Fig. 8 is a structural schematic view of another installation mode of the pluggable optical fiber FA-CPO interface package structure in the embodiment of the present application;

[0040] Figure 8 Fig. 9 is a perspective view of the base in the embodiment of the present application; Figure 5

[0041] Figure 9 Fig. 10 is a perspective view of the cover plate in the embodiment of the present application; Figure 5

[0042] Figure 10 Fig. 11 is a structural schematic view of the base in the embodiment of the present application; Figure 5

[0043] Figure 11 Fig. 12 is a structural schematic view of the pressing block in the embodiment of the present application; Figure 5

[0044] Figure 12 Fig. 13 is a partial enlarged view of the A part in the embodiment of the present application; Figure 11

[0045] Figure 13 Fig. 14 is a flow schematic view of the pluggable optical fiber FA-CPO interface package method in the embodiment of the present application.

[0046] Marked with reference numerals: 1-base, 2-cover plate, 3-optical fiber array, 4-PIN needle, 5-collimating lens, 6-converging lens;

[0047] 100-clamping hole;

[0048] 11-first positioning groove, 12-bonding part;

[0049] 21-third positioning groove;

[0050] 31-pressing block, 311-installation slot, 312-second positioning groove, 32-optical fiber, 33-base, 331-fourth positioning groove. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0052] Reference Figures 1-12 ​​​​​As shown, the first aspect of the present application provides a pluggable fiber array CPO interface packaging structure, comprising a base 1, a fiber array 3, a PIN needle 4 and a collimating lens 5, wherein:

[0053] The base 1 is made of glass material, and a first positioning groove 11 is arranged on the top surface of the base 1. The first positioning groove 11 can be a V-shaped groove, which facilitates the slotting on the glass base 1 and improves the processing convenience of the device.

[0054] A third positioning groove 21 is arranged on the cover plate 2, which can be a V-shaped groove. The cover plate 2 is installed on the base 1, and the third positioning groove 21 is arranged opposite to the first positioning groove 11 to form a clamping hole 100 for clamping and fixing the PIN needle 4. The cover plate 2 is in an inverted U shape and can accommodate the collimating lens 5.

[0055] The fiber array 3 comprises a pressing block 31 and a plurality of optical fibers 32. The pressing block 31 is provided with a mounting groove 311 and a second positioning groove 312, which can be a V-shaped groove. The pressing block 31 is connected to the base 33 in a cover joint manner. The plurality of optical fibers 32 are assembled in the mounting groove 311 and are bonded by an adhesive. The mounting groove 311 can be a V-shaped groove.

[0056] The PIN needle 4 is fixedly installed on the base 1 and is in butt joint with the pressing block 31. Alternatively, the PIN needle 4 is fixedly installed on the pressing block 31 and is pluggably connected with the base 1.

[0057] One of the first positioning groove 11 and the second positioning groove 312 is used for fixed connection with the PIN needle 4, and the other is used for pluggable connection with the PIN needle 4. The PIN needle 4 is in a cylindrical shape, and there are two PIN needles 4. The two PIN needles 4 are arranged in parallel, and both of them are used for fixed connection at one end and pluggable connection at the other end.

[0058] The collimating lens 5 is installed on the base 1 and is coupled with the plurality of optical fibers 32.

[0059] The pluggable fiber array CPO interface packaging structure provided by the present embodiment is made of glass material, and the base 1 is provided with a first positioning groove 11 on the top surface. The pressing block 31 is provided with a mounting groove 311 and a second positioning groove 312. The plurality of optical fibers 32 are assembled in the mounting groove 311 and are bonded by an adhesive. One of the first positioning groove 11 and the second positioning groove 312 is used for fixed connection with the PIN needle 4, and the other is used for pluggable connection with the PIN needle 4. The coupling between the optical fibers 32 and the collimating lens 5 on the base 1 is realized, so as to solve the problem that the length of the PIN needle 4 cannot be directly machined on the glass base 1, and the position accuracy of the PIN needle 4 can be ensured.

[0060] In some embodiments, in combination with Figures 1-4 As shown, the PIN needle 4 is fixedly installed in the first positioning groove 11 of the base 1, the first positioning groove 11 bears the PIN needle 4, the PIN needle 4 is inserted into the second positioning groove 312, and the pressing block 31 is coveringly installed on the base 1 so that the inner wall of the second positioning groove 312 abuts and presses the PIN needle 4. After the PIN needle 4 is assembled in the base 1 to form assembly one, assembly one is mated with the assembled fiber array 3, the bottom surface of the pressing block 31 is attached to the top surface of the base 1, the PIN needle 4 is inserted into the second positioning groove 312 to a specified depth, the positioning and connection of the base 1 and the fiber array 3 are realized, and thus the coupling of the optical fiber 32 and the collimating lens 5 on the base 1 is realized.

[0061] In other embodiments, in combination with Figures 5-12 As shown, the pluggable fiber FA-CPO interface package structure further includes a cover plate 2, the cover plate 2 is provided with a third positioning groove 21, the third positioning groove 21 can be a V-shaped groove, the cover plate 2 is coveringly installed on the base 1, the third positioning groove 21 is oppositely arranged with the first positioning groove 11 to form a clamping hole 100 for clamping and fixing the PIN needle; the cover plate 2 is inverted U-shaped and can accommodate the collimating lens 5 inside; the PIN needle 4 is used for pluggable connection with the clamping hole 100; the fiber array 3 further includes a base 33, the base 33 is provided with a fourth positioning groove 331, the fourth positioning groove 331 can be a V-shaped groove, the PIN needle 4 is fixedly installed in the fourth positioning groove 331 of the base 33, the fourth positioning groove 331 bears the PIN needle 4, the pressing block 31 is connected with the base 33, the inner wall of the second positioning groove 312 abuts and presses the PIN needle 4, the PIN needle 4 is fixed by an adhesive, and the PIN needle 4 extends out of the fourth positioning groove 331 by a distance; the cover plate 2 is fixedly connected with the base 1 to form the clamping hole 100, and the PIN needle 4 is inserted into the clamping hole 100. After the PIN needle 4 is assembled in the base 33 and the pressing block 31 to form the fiber array 3, assembly two formed by the fixed connection of the cover plate 2 and the base 1 is mated with the assembled fiber array 3, the PIN needle 4 is inserted into the clamping hole 100, the positioning and connection of the base 1 and the fiber array 3 are realized, and thus the coupling of the optical fiber 32 and the collimating lens 5 on the base 1 is realized.

[0062] In some embodiments, the diameter accuracy of the PIN needle 4 is within ±0.1 um, the position accuracy of the PIN needle 4 is within ±3 um, and the position accuracy of the optical fiber 32 is within ±0.5 um. By setting the accuracy of the PIN needle 4 and the optical fiber 32, it can be ensured that the coupling of the collimating lens 5 and the optical fiber 32 after the PIN needle 4 is connected to the base 1 and the optical fiber array 3 meets the accuracy requirements. The insertion loss of the PIN needle 4 is not more than 0.25 dB. The pitch tolerance of the optical fiber array 3 and the PIN needle 4 is ≤±3 um.

[0063] In some embodiments, the end face angle tolerance of the end face of the base 33 that is in contact with the end face of the base 1 is ≤±0.5°. By the above setting, it can be ensured that the butt joint of the PIN needle 4 will not cause angle error after the end face of the base 33 is in contact with the base 1, thereby improving the coupling accuracy of the collimating lens 5 and the optical fiber 32.

[0064] In some embodiments, the mounting groove 311 is cut by a high-precision dicing machine to form a V-shaped groove. The mounting groove 311 needs to meet the following requirements: the X-axis adjacent tolerance is ≤±0.5 um, the X-axis cumulative tolerance is ≤±1 um, and the length-width-height tolerance is ≤±0.05 um. The X-axis adjacent tolerance refers to the tolerance band relationship of adjacent dimensions (or features) on the same shaft part. The X-axis cumulative tolerance refers to the cumulative error of each measurement value or calculation result in the X-axis direction.

[0065] In some embodiments, the coupling of the collimating lens 5 and the optical fiber 32 needs to meet the following requirements: the offset of the beam center position in the X direction and the offset in the Y direction are both within ±5 um. By setting the above offset, the coupling accuracy of the collimating lens 5 and the optical fiber 32 is met, the collimating effect of the collimating lens 5 on the optical fiber 32 is better, and the accuracy and reliability of the data transmission of the optical fiber 32 are improved.

[0066] In some embodiments, the cross section of the first positioning groove 11, the third positioning groove 21, the fourth positioning groove 331, and the second positioning groove 312 can also be a semicircle or a small semicircle of a poor arc, and the diameter is the same as or slightly larger than the diameter of the PIN needle 4. When the cross section is a semicircle, the clamping hole 100 is a complete circular hole. When the cross section is a small semicircle of a poor arc, the clamping hole 100 formed by the first positioning groove 11 and the third positioning groove 21 is an incomplete circular hole.

[0067] In some embodiments, the cross section of the mounting groove 311 can also be a semicircle, and the diameter of the mounting groove 311 is the same as the diameter of the optical fiber 32, thereby facilitating the support of the optical fiber 32. In actual design, the diameter of the mounting groove 311 can be slightly larger than the diameter of the optical fiber 32, thereby facilitating the fixation of the optical fiber 32 by using adhesive.

[0068] In some embodiments, the pluggable fiber optic FA-CPO interface packaging structure further includes a converging lens 6, which is mounted on the base 1 and coupled to the plurality of optical fibers 32. The converging lens 6 is located on the side of the collimating lens 5 away from the base 33. After the converging lens 6 is mounted on the base 1 and the PIN pins 4 are used to position and connect the base 1 and the fiber array 3, the optical fibers 32 can be coupled to the converging lens 6. The function of the converging lens 6 is that when light passes through the condenser lens, the light is refracted due to the difference in refractive index between the lens material and the surrounding environment, thus concentrating the originally dispersed light.

[0069] In some embodiments, an adhesive portion 12 is provided at the end of the top surface of the base 1 away from the cover plate 2, the adhesive portion 12 being used to adhere a PIC chip. PIC, short for Photonic Integrated Circuit, is a microchip containing two or more photonic elements that form a functional circuit. PIC chips utilize photons (or particles of light) instead of electrons to transmit information. Because photons travel at the speed of light, they have a wide bandwidth and minimal energy loss, enabling PIC chips to transmit data quickly and are highly energy-efficient. They can be used to create faster, more energy-efficient devices and can sense with the highest precision, making them very efficient in processing and transmitting data.

[0070] Based on the same concept, referring to Figure 13 As shown, a second aspect of the present invention provides a pluggable fiber optic FA-CPO interface encapsulation method, using the pluggable fiber optic FA-CPO interface encapsulation structure as described in the first aspect, comprising:

[0071] Step S101: Install the collimating lens 5 onto the base 1;

[0072] After the collimating lens 5 is pre-coupled with the optical fiber 32, it is glued and fixed to the corresponding position on the base 1.

[0073] Step S102: Assemble multiple optical fibers 32 into the mounting groove 311 and bond them together with adhesive;

[0074] Step S103: Fix the PIN pin 4 in one of the first positioning groove 11 and the second positioning groove 312;

[0075] Step S104: Insert the PIN pin 4 into the other of the first positioning slot 11 and the second positioning slot 312 so that the collimating lens 5 is coupled to the optical fiber 32.

[0076] In some embodiments, step S103, fixing the PIN pin 4 in one of the first positioning groove 11 and the second positioning groove 312, specifically includes: placing the PIN pin 4 in the first positioning groove 11 of the base 1, fixing the PIN pin 4 with adhesive, inserting the PIN pin 4 into the second positioning groove 312, and covering and installing the pressure block 31 on the base 1 so that the inner wall of the second positioning groove 312 abuts and presses the PIN pin 4.

[0077] In some other embodiments, in step S103, fixing the PIN pin 4 in one of the first positioning groove 11 and the second positioning groove 312 specifically includes: placing the PIN pin 4 in the fourth positioning groove 331, the pressure block 31 being connected to the base 33, the inner wall of the second positioning groove 312 contacting and pressing the PIN pin 4, fixing the PIN pin 4 with adhesive, and the PIN pin 4 extending a certain distance out of the fourth positioning groove 331; the PIN pin 4 being inserted into the clamping hole 100.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pluggable fiber optic FA-CPO interface packaging structure, characterized in that, Includes a base, fiber array, PIN pins, and collimating lens, wherein: The base is made of glass, and a first positioning groove is provided on the top surface of the base; The fiber array includes a pressure block and multiple optical fibers. The pressure block is provided with a mounting groove and a second positioning groove. The multiple optical fibers are assembled in the mounting groove and bonded together by adhesive. The PIN pin is fixedly installed on the base and docks with the pressure block; or the PIN pin is fixedly installed on the pressure block and is pluggably connected to the base. The first positioning groove and the second positioning groove, one of which is used for fixed connection with the PIN pin, and the other is pluggably connected to the PIN pin; The collimating lens is mounted on the base and coupled to the multiple optical fibers.

2. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 1, characterized in that, The PIN pin is fixedly installed in the first positioning groove of the base, the PIN pin is inserted into the second positioning groove, and the pressure block is installed on the base so that the inner wall of the second positioning groove abuts and presses the PIN pin.

3. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 1, characterized in that, It also includes a cover plate, which has a third positioning groove. The cover plate is installed on the base. The third positioning groove is arranged opposite to the first positioning groove to form a clamping hole for clamping and fixing the PIN pin. The PIN pin is used to be pluggably connected to the clamping hole. The fiber array also includes a base, on which a fourth positioning groove is provided. The PIN pin is fixedly installed in the fourth positioning groove of the base. The pressure block is connected to the base. A second positioning groove is arranged opposite to the fourth positioning groove so that the inner wall of the second positioning groove contacts and presses the PIN pin.

4. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 1, characterized in that, The diameter accuracy of the PIN pin is within ±0.1µm, the position accuracy of the PIN pin is within ±3µm, and the position accuracy of the optical fiber must be within ±0.5µm.

5. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 1, characterized in that, The coupling between the collimating lens and the optical fiber must satisfy the requirement that the offset of the beam center position in both the X and Y directions be within ±5µm.

6. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 3, characterized in that, The cross-sections of the first positioning groove, the third positioning groove, the fourth positioning groove, and the second positioning groove are V-shaped or semi-circular.

7. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 1, characterized in that, The cross-section of the mounting groove is V-shaped or semi-circular.

8. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 3, characterized in that, It also includes a converging lens, which is mounted on the base and coupled to the plurality of optical fibers, and the converging lens is located on the side of the collimating lens away from the base.

9. The pluggable fiber optic FA-CPO interface packaging structure as described in claim 3, characterized in that, The top surface of the base is provided with an adhesive portion at one end away from the cover plate, and the adhesive portion is used to attach the PIC chip.

10. A pluggable fiber optic FA-CPO interface encapsulation method, using the pluggable fiber optic FA-CPO interface encapsulation structure as described in any one of claims 1-9, characterized in that, include: Mount the collimating lens on the base; Multiple optical fibers are assembled into the mounting slot and bonded together with adhesive. The PIN pin is fixedly installed in one of the first positioning groove and the second positioning groove; Insert the PIN pin into the other of the first positioning slot and the second positioning slot to couple the collimating lens with the optical fiber.

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