Silicon photonic engine component coupling system and testing method

Abstract

The present invention relates to a silicon light engine component coupling system and coupling method, wherein the system comprises a workbench, a transmitting end coupling device, a receiving end coupling device and a PCB board clamping fixture, wherein the transmitting end coupling device and the receiving end coupling device are respectively arranged on the workbench, the PCB board clamping fixture is arranged between the two, the light engine component is arranged at the upper end of the PCB board clamping fixture, the transmitting end coupling device is used to clamp the transmitting end FA and couple it with the transmitting port, and the receiving end coupling device is used to clamp the receiving end FA and couple it with the receiving port. The present invention controls the initial coupling between the clamping transmitting end FA and the transmitting port, and the initial coupling between the receiving end FA and the receiving port, so that the force and amplitude can be precisely controlled, and the FA will not be damaged while ensuring the clamping force; by directly connecting two transmitting channels of the external MT ferrule with the optical paths of the two receiving channels, a set of coupling system can complete the coupling between the transmitting end and the receiving end, which not only saves the hardware cost, but also saves the development cost.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to a silicon optical engine component coupling system and a testing method. Background Art

[0002] Silicon photonics technology is a new generation of technology based on silicon and silicon-based substrate materials, using existing CMOS processes to develop and integrate optical devices. Silicon photonic chips use silicon and silicon-based substrate materials (such as SiGe / Si, SOI, etc.) as optical media, and use complementary metal oxide semiconductor (CMOS) compatible integrated circuit processes to manufacture corresponding photonic devices and optoelectronic devices (including silicon-based light-emitting devices, modulators, detectors, optical waveguide devices, etc.), and use these devices to emit, transmit, detect and process photons to achieve practical applications in optical communications, optical sensing, optical computing and other fields. Optical engines / silicon optical engines are the main parts of optical modules used to achieve optoelectronic signal conversion, which are combined into a combination. Especially after the application of silicon photonics integration, the main units of electro-optical conversion and optoelectronic conversion are integrated, that is, the electrical chip and silicon photonics are integrated, and then connected to the optical fiber to form a complete signal conversion component - optical engine (Optical Engine).

[0003] The coupling scheme in the prior art is to couple the transmitting end and the receiving end separately. Transmitting end coupling: the power-on device powers on the PCB board, and the transmitting port of the PCB board emits an optical signal. The PC system is connected to an optical power meter, and by monitoring the optical power signal and controlling the coupling device, the transmitting end of the PCB board and the transmitting end FA are coupled to the minimum power loss value. UV curing glue is applied between the PCB transmitting end and FA for curing, and the transmitting end coupling is completed. Receiving end coupling: the point light source outputs an optical signal, and the optical signal is output through the receiving end FA. The PC system is connected to a source meter, and by monitoring the current of the source meter and controlling the coupling device, the receiving end of the PCB and the receiving end FA are coupled to the maximum current of the source meter, and then UV curing glue is applied for curing, and the receiving end coupling is completed.

[0004] The coupling of the optical engine is mainly the coupling between the PCB board and the MT-FA. However, the existing optical engine coupling has the following problems: the FA is small in size, the distance between the two FAs is short, and the FA itself is easy to break; furthermore, two sets of coupling systems are required for coupling separately, which is inefficient, costly, and troublesome in software development. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a silicon light engine component coupling system and coupling method in view of the deficiencies of the above-mentioned prior art.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a silicon light engine component coupling system, comprising a workbench, a transmitting end coupling device, a receiving end coupling device and a PCB board clamping fixture, wherein the transmitting end coupling device and the receiving end coupling device are respectively arranged on the workbench and located on both sides of the workbench, the PCB board clamping fixture is arranged on the workbench and located between the transmitting end coupling device and the receiving end coupling device, the light engine component to be coupled is arranged at the upper end of the PCB board clamping fixture, the light engine component to be coupled comprises a PCB board and an MT-FA component, and the transmitting end coupling device is used to clamp the transmitting end F of the MT-FA component A, and coupled with the transmitting port on the PCB board, the receiving end coupling device is used to clamp the receiving end FA of the MT-FA component, and couple with the receiving port on the PCB board, the transmitting end FA and the receiving end FA are respectively connected to the receiving channel and the transmitting channel optical path on the MT ferrule on the PCB board, the MT ferrule is coupled with the external MT ferrule, two transmitting channels of the external MT ferrule are connected with the two receiving channel optical paths, the circuit connection ports on the PCB board are respectively electrically connected with the power supply device and the source meter, the source meter is electrically connected with the main control PC, and the main control PC is respectively electrically connected with the transmitting end coupling device and the receiving end coupling device.

[0007] The beneficial effects of the present invention are as follows: the silicon photonic engine component coupling system of the present invention controls the transmitting end coupling device to clamp the transmitting end FA and the transmitting port for preliminary coupling through the main control PC, and controls the receiving end coupling device to clamp the receiving end FA and the receiving port for preliminary coupling, and the force and amplitude can be precisely controlled, while ensuring the clamping force, FA will not be damaged; by directly connecting two of the transmitting channels of the external MT ferrule with the two receiving channel optical paths, a set of coupling system can complete the coupling of the transmitting end and the receiving end, which not only saves hardware costs, but also saves the development costs of two sets of software systems.

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

[0009] Further: the transmitting end coupling device and the receiving end coupling device both include a coupling base, a multidimensional adjustment component and a FA clamping component. The coupling base is arranged on the corresponding side of the workbench, and the multidimensional adjustment component is installed on the corresponding coupling base. The FA clamping components are respectively installed on the ends of the two groups of multidimensional adjustment components close to each other. The FA clamping components are used to clamp the transmitting end FA and align it with the receiving port, or to clamp the receiving end FA and couple it with the receiving port. The multidimensional adjustment component and the FA clamping component are respectively electrically connected to the main control PC.

[0010] The beneficial effect of the above further scheme is: the coupling base can provide stable support for the multi-dimensional adjustment component and the FA clamping component, and the multi-dimensional adjustment component can drive the transmitting end FA and the receiving end FA clamped by the FA clamping component, and adjust the spatial position and angle, so as to couple with the transmitting port and the receiving port to realize automatic coupling.

[0011] Further: the FA clamping assembly includes a connecting clamp, a cylinder assembly and a FA clamping clamp for clamping the transmitting end FA or the receiving end FA, the connecting clamp is arranged at the driving end of the multi-dimensional adjustment assembly, the cylinder assembly is arranged on the connecting clamp, the cylinder assembly is electrically connected to the main control PC, the FA clamping clamp is arranged at the driving end of the cylinder assembly, and the multi-dimensional adjustment assembly can drive the connecting clamp to drive the cylinder assembly and the FA clamping clamp to adjust the position and angle.

[0012] The beneficial effect of the above further scheme is that the connecting clamp can support the cylinder assembly, so that the FA holding clamp can be driven to clamp the transmitting end FA or the receiving end FA by controlling the cylinder assembly, thereby completing the position and angle adjustment of the transmitting end FA and the receiving end FA.

[0013] Further: the FA clamping fixture includes a first FA clamp body and a second FA clamp body, the middle parts of the first FA clamp body and the second FA clamp body are rotatably connected by a pin, a first spring is arranged between the upper parts of the first FA clamp body and the second FA clamp body, a limit pin is arranged on the inner side wall of the first FA clamp body or the second FA clamp body, one end of the first spring is sleeved on the limit pin and connected to the inner side wall of the first FA clamp body or the second FA clamp body, the other end of the first spring is connected to the inner side wall of the second FA clamp body or the first FA clamp body, the lower ends of the first FA clamp body and the second FA clamp body are respectively provided with flexible spring sheets, and the driving end of the cylinder assembly abuts against the upper part of the outer side wall of the first FA clamp body or the second FA clamp body.

[0014] The beneficial effect of the above further scheme is: through the rotational connection between the middle parts of the first FA clamp body and the second FA clamp body, the driving end of the cylinder assembly and the first FA clamp body and the second FA clamp body can rotate relative to each other, so that the flexible spring sheets located at the lower ends of the first FA clamp body and the second FA clamp body can clamp or release the transmitting end FA and the receiving end FA to achieve precise adjustment.

[0015] Further: the cylinder assembly includes a cylinder body, two air pipe joints arranged on the cylinder body and connected to an external air pressure source, an adjustment knob and a driving rod arranged on the cylinder body and used to adjust the pressure and formation, the driving rod is connected to the FA clamping fixture, the main control PC is electrically connected to the cylinder body, and can drive the driving rod to drive the FA clamping fixture to move.

[0016] The beneficial effect of the above further solution is that the air pressure of the cylinder assembly and the stroke of the driving rod can be conveniently adjusted by setting the adjustment knob, so as to perform adaptive adjustment according to different silicon photonic engines.

[0017] Further: the PCB board clamping fixture includes a PCB clamp base with a hollow interior and a T-shaped cross-section, a pair of butterfly clips, a pin shaft, a pair of second springs and a pair of rotating shafts. The PCB clamp base is installed on the base, and grooves are respectively provided on the side walls of the PCB clamp base. The pair of rotating shafts are arranged in parallel and spaced apart in the PCB clamp base, and the rotating shaft is located in the grooves on the corresponding side. The middle part of the butterfly clip extends into the grooves on the corresponding side, and the middle part of the butterfly clip is sleeved on the corresponding rotating shaft. The upper end of the butterfly clip is higher than the upper end of the PCB clamp base, and the pin shaft is arranged between the two sides of the PCB clamp base. One end of the second spring is connected to the corresponding end of the pin shaft, and the other end of the second spring abuts against the inner side wall of the corresponding butterfly clip.

[0018] The beneficial effect of the above further scheme is: the PCB board is supported by the PCB clamp base, and the butterfly clip is clamped and fixed under the action of the butterfly clip. The butterfly clip can be conveniently pressed by cooperating with the pin shaft and the spring to achieve the clamping or loosening of the PCB board by the upper end of the butterfly clip, which is simple and convenient to operate.

[0019] Further: the upper end surface of the PCB fixture base is provided with a plurality of air holes, and the air holes are connected to an external negative pressure source.

[0020] The beneficial effect of the above further scheme is: by setting the air hole, it can be convenient to connect with the external negative pressure source, so as to form a negative pressure adsorption effect on the upper end surface of the PCB clamp base, thereby assisting the positioning and fixation of the PCB board, and avoiding the PCB board from being out of position during the subsequent glue dispensing coupling process, resulting in the coupling accuracy failing to meet the set requirements.

[0021] Further: the silicon photonic engine assembly coupling system further includes an optical power meter, and two of the transmission channels of the external MT ferrule are connected to the optical path of the optical power meter.

[0022] The beneficial effect of the above further scheme is: by setting the above, before fine-tuning the position and angle of the transmitting end FA and the receiving end FA, the position and angle of the transmitting end FA can be roughly adjusted by the optical power loss value of two optical signals detected by the optical power meter, which can greatly improve the adjustment efficiency and accuracy.

[0023] The present invention also provides a coupling method of the silicon light engine component coupling system, comprising the following steps:

[0024] Build an optical path and start the system. The power supply device supplies power to the PCB board. The transmitting port of the PCB board sends out an optical signal, which passes through the MT ferrule via the transmitting end FA and then enters the external MT ferrule;

[0025] The optical signal entering the external MT ferrule is divided into four paths, wherein the first and fourth optical signals enter the optical power meter through two transmitting channels, and the second and third optical signals enter the receiving channel through two transmitting channels and enter the receiving end FA via the MT ferrule;

[0026] The main control PC controls the transmitting end coupling device to clamp the transmitting end FA of the MT-FA component and preliminarily couple it with the transmitting port on the PCB board, and controls the receiving end coupling device to clamp the receiving end FA of the MT-FA component and preliminarily couple it with the receiving port on the PCB board;

[0027] The main control PC controls the transmitting end coupling device to adjust the position and angle of the transmitting end FA according to the optical signal parameters received by the optical power meter, so that the optical power loss value monitored by the optical power meter is minimized;

[0028] The main control PC controls the receiving end coupling device to adjust the position and angle of the receiving end FA according to the current value of the source meter, so that the current value of the source meter is maximized;

[0029] The transmitting end FA and the transmitting port are glued and cured, and the receiving end FA and the receiving port are glued and cured to complete the coupling of the silicon photonic engine component. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the optical path structure of a silicon light engine component coupling system according to an embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of a silicon light engine component coupling system according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of a PCB board according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the MT-FA assembly according to one embodiment of the present invention;

[0034] Figure 5 It is a structural schematic diagram of a FA clamping fixture according to an embodiment of the present invention;

[0035] Figure 6 It is a structural schematic diagram of a cylinder assembly according to an embodiment of the present invention;

[0036] Figure 7 The figure is a schematic structural diagram of a PCB board clamping fixture according to an embodiment of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1. Light engine assembly, 2. Workbench, 3. Coupling PCB board clamping fixture and base, 4. X-axis linear fine-tuning motor, 5. Y-axis linear fine-tuning motor, 6. 90° connecting block, 7. Z-axis linear fine-tuning motor, 8. θ Z Axis rotary motor, 9, θ Y Axis rotary motor, 10, θ X Axis rotating motor, 11, connecting fixture, 12, cylinder assembly, 13, FA clamping fixture, 14, PCB board clamping fixture, 15, power supply device, 16, external MT ferrule, 17, optical power meter, 18, main control PC, 21, source meter;

[0039] 101, PCB board, 102, MT-FA component;

[0040] 1011. transmitting port, 1012. receiving port, 1013. circuit connection port, 1021. transmitting end FA, 1022. receiving end FA, 1023. MT ferrule, 1201. air pipe joint, 1202. adjusting knob, 1203. driving rod, 1301. first FA fixture body, 1302. second FA fixture body, 1303. pin, 1304. limiting pin, 1305. first spring, 1401. PCB fixture base, 1402. butterfly clip, 1403. pin shaft, 1404. second spring, 1405. rotating shaft, 1406. air hole. DETAILED DESCRIPTION

[0041] 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.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a silicon light engine component coupling system includes a workbench 2, a transmitting end coupling device, a receiving end coupling device and a PCB board clamping fixture 14, wherein the transmitting end coupling device and the receiving end coupling device are respectively arranged on the workbench 2 and located on both sides of the workbench 2, the PCB board clamping fixture 14 is arranged on the workbench 2 and located between the transmitting end coupling device and the receiving end coupling device, the light engine component 1 to be coupled is arranged at the upper end of the PCB board clamping fixture 14, the light engine component 1 to be coupled includes a PCB board 101 and an MT-FA component 102, the transmitting end coupling device is used to clamp the transmitting end FA1021 of the MT-FA component 102, and couple with the transmitting port 1011 on the PCB board 101, The receiving end coupling device is used to clamp the receiving end FA1022 of the MT-FA component 102 and couple with the receiving port 1012 on the PCB board 101. The transmitting end FA1021 and the receiving end FA1022 are respectively connected to the receiving channel and the transmitting channel optical path on the MT ferrule 1023 on the PCB board 101. The MT ferrule 1023 is coupled with the external MT ferrule 16. Two transmitting channels of the external MT ferrule 16 are optically connected with two receiving channels. The circuit connection port 1013 on the PCB board 101 is respectively electrically connected with the power supply device 15 and the source meter 21. The source meter 21 is electrically connected with the main control PC18. The main control PC18 is respectively electrically connected with the transmitting end coupling device and the receiving end coupling device.

[0043] The silicon photonic engine component coupling system of the present invention controls the transmitting end coupling device to clamp the transmitting end FA1021 and the transmitting port 1011 for preliminary coupling through the main control PC18, and controls the receiving end coupling device to clamp the receiving end FA1022 and the receiving port 1012 for preliminary coupling, and the force and amplitude can be precisely controlled, while ensuring the clamping force, the FA will not be damaged; by directly connecting two of the transmitting channels of the external MT ferrule 16 with the two receiving channel optical paths, a set of coupling system can complete the coupling of the transmitting end and the receiving end, which not only saves the hardware cost, but also saves the development cost of two sets of software systems.

[0044] In one or more embodiments of the present invention, the transmitting end coupling device and the receiving end coupling device both include a coupling base 3, a multi-dimensional adjustment component and a FA clamping component. The coupling base 3 is arranged on a corresponding side of the workbench 2, and the multi-dimensional adjustment component is installed on the corresponding coupling base 3. The FA clamping components are respectively installed at the ends of the two groups of multi-dimensional adjustment components close to each other. The FA clamping components are used to clamp the transmitting end FA1021 and align it with the receiving port 1012, or to clamp the receiving end FA1022 and couple it with the receiving port 1012. The multi-dimensional adjustment component and the FA clamping component are respectively electrically connected to the main control PC18. The coupling base 3 can provide a stable support for the multi-dimensional adjustment component and the FA clamping component. The multi-dimensional adjustment component can drive the transmitting end FA1021 and the receiving end FA1022 clamped by the FA clamping component, and adjust the spatial position and angle, so as to couple with the transmitting port 1011 and the receiving port 1012 to achieve automatic coupling. Here, the workbench 3 adopts a shockproof workbench.

[0045] In one or more embodiments of the present invention, the multi-dimensional adjustment component includes an X-axis linear fine-tuning motor 4, a Y-axis linear fine-tuning motor 5, a 90° connecting block 6, a Z-axis linear fine-tuning motor 7, a θ Z Axis rotation motor 8, θ Y Axis rotation motor 9 and θ X The X-axis linear fine-tuning motor 4 is arranged on the coupling base 3, the Y-axis linear fine-tuning motor 5 is arranged on the X-axis linear fine-tuning motor 4, the horizontal side of the 90° connecting block 6 is arranged on the Y-axis linear fine-tuning motor 5, and the vertical side of the 90° connecting block 6 is provided with the Z-axis linear fine-tuning motor 7. Z Axis rotation motor 8, θ Y Axis rotation motor 9 and θ X The axis rotation motor 10 is sequentially arranged between the Z axis linear fine-tuning motor 7 and the connecting fixture 11, the X axis linear fine-tuning motor 4, the Y axis linear fine-tuning motor 5, the 90° connecting block 6, the Z axis linear fine-tuning motor 7, the θ Z Axis rotation motor 8, θ Y Axis rotation motor 9 and θ X The axis rotation motor 10 is electrically connected to the main control PC 18, so that the main control PC 18 can control the X-axis linear fine-tuning motor 4, the Y-axis linear fine-tuning motor 5, the 90° connecting block 6, the Z-axis linear fine-tuning motor 7, the θ Z Axis rotation motor 8, θ Y Axis rotation motor 9 and θ XThe shaft rotating motor 10 drives the connecting fixture 11 to drive the FA clamping assembly to adjust the position and angle, thereby realizing the position and angle adjustment of the transmitting end FA1021 and the receiving end FA1022.

[0046] In one or more embodiments of the present invention, the FA clamping assembly includes a connecting fixture 11, a cylinder assembly 12, and a FA clamping fixture 13 for clamping the transmitting end FA1021 or the receiving end FA1022. The connecting fixture 11 is arranged at the driving end of the multi-dimensional adjustment assembly, the cylinder assembly 12 is arranged on the connecting fixture 11, the cylinder assembly 12 is electrically connected to the main control PC18, and the FA clamping fixture 13 is arranged at the driving end of the cylinder assembly 12. The multi-dimensional adjustment assembly can drive the connecting fixture 11 to drive the cylinder assembly 12 and the FA clamping fixture 13 to adjust the position and angle. The connecting fixture 11 can support the cylinder assembly 12, so that the FA holding fixture 13 can be driven to clamp the transmitting end FA1021 or the receiving end FA1022 by controlling the cylinder assembly 12, thereby completing the position and angle adjustment of the transmitting end FA1021 and the receiving end FA1022.

[0047] It should be pointed out that, in practice, since the widths of the transmitting end FA1021 and the receiving end FA1022 of the MT-FA assembly 102 are different, the intervals of the lower halves of the two sets of FA clamping fixtures 13 corresponding to the transmitting end FA1021 and the receiving end FA1022 are different, mainly to adapt to each FA.

[0048] In addition, the coupling angles of the transmitting end FA1021 and the receiving end FA1022 of the MT-FA component 102 are also different. Therefore, the two connecting clamps 11 corresponding to the transmitting end FA1021 and the receiving end FA1022 are slightly different in design, so that the coupling surface of the FA clamping clamp 13 after clamping the FA is parallel to the coupling surface on the PCB board 101.

[0049] like Figure 5As shown, in one or more embodiments of the present invention, the FA clamping fixture 13 includes a first FA clamp body 1301 and a second FA clamp body 1302, the middle parts of the first FA clamp body 1301 and the second FA clamp body 1302 are rotatably connected by a pin 1303, a first spring 1305 is arranged between the upper parts of the first FA clamp body 1301 and the second FA clamp body 1302, a limiting pin 1304 is arranged on the inner side wall of the first FA clamp body 1301 or the second FA clamp body 1302, and the first spring 1305 is arranged between the upper parts of the first FA clamp body 1301 and the second FA clamp body 1302. One end of 305 is sleeved on the limit pin 1304 and connected to the inner wall of the first FA clamp body 1301 or the second FA clamp body 1302, the other end of the first spring 1305 is connected to the inner wall of the second FA clamp body 1302 or the first FA clamp body 1301, the lower ends of the first FA clamp body 1301 and the second FA clamp body 1302 are respectively provided with flexible spring sheets, and the driving end of the cylinder assembly 12 is in contact with the upper part of the outer wall of the first FA clamp body 1301 or the second FA clamp body 1302. By rotating the middle part of the first FA clamp body 1301 and the second FA clamp body 1302, the driving end of the cylinder assembly 12 can rotate relative to the first FA clamp body 1301 and the second FA clamp body 1302, so that the flexible spring sheets located at the lower ends of the first FA clamp body 1301 and the second FA clamp body 1302 can clamp or release the transmitting end FA1021 and the receiving end FA1022 to achieve precise adjustment.

[0050] In one or more embodiments of the present invention, optionally, the flexible spring sheet is a stainless steel spring sheet with a thickness of only 0.2-0.4 mm. The distance between the two stainless steel spring sheets is slightly smaller than the width of the corresponding transmitting end FA1021 or the receiving end FA1022. The flexible spring sheet has a certain toughness while maintaining a certain strength. In a normal state, the flexible spring sheets are close to each other and in a clamping state. When the driving end of the cylinder assembly 12 abuts against the upper part of the outer wall of the first FA clamp body 1301, the driving end of the cylinder assembly 12 can drive the upper ends of the first FA clamp body 1301 and the second FA clamp body 1302 to approach each other. Thereby, the flexible spring sheets at the lower ends of the first FA clamp body 1301 and the second FA clamp body 1302 move away from each other and release the transmitting end FA1021 or the receiving end FA1022. When the driving end of the cylinder assembly 12 separates from the upper part of the outer wall of the first FA clamp body 1301, the first spring 1305 drives the upper ends of the first FA clamp body 1301 and the second FA clamp body 1302 move away from each other, thereby making the flexible spring sheets at the lower ends of the first FA clamp body 1301 and the second FA clamp body 1302 approach each other and clamp the transmitting end FA1021 or the receiving end FA1022.

[0051] like Figure 6 As shown, optionally, in one or more embodiments of the present invention, the cylinder assembly 12 includes a cylinder body, two air pipe joints 1201 arranged on the cylinder body and connected to an external air pressure source, an adjusting knob 1202 arranged on the cylinder body and used to adjust the pressure and the formation, and a driving rod 1203, wherein the driving rod 1203 is connected to the FA clamping fixture 13, and the main control PC is electrically connected to the cylinder body, and can drive the driving rod 1203 to drive the FA clamping fixture 13 to move. By setting the adjusting knob 1202, the air pressure of the cylinder assembly 12 and the stroke of the driving rod 1203 can be easily adjusted, so as to perform adaptive adjustment according to different silicon light engines. In practice, the air pipe joint 1201 is used in conjunction with an air pipe and a solenoid valve, and the solenoid valve is controlled by the main control PC 18. The adjusting knob 1202 uses a knurled adjusting screw to adjust the pressure and stroke of the cylinder body.

[0052] like Figure 7As shown, in one or more embodiments of the present invention, the PCB clamping fixture 14 includes a PCB clamp base 1401 with a hollow interior and a T-shaped cross-section, a pair of butterfly clips 1402, a pin 1403, a pair of second springs 1404 and a pair of rotating shafts 1405. The PCB clamp base 1401 is installed on the base 1, and grooves are respectively provided on the side walls of the PCB clamp base 1401. The pair of rotating shafts 1405 are arranged in parallel and spaced apart in the PCB clamp base 1401, and the rotating shafts 1405 are located on the corresponding side. The middle part of the butterfly clip 1402 extends into the groove on the corresponding side, and the middle part of the butterfly clip 1402 is sleeved on the corresponding rotating shaft 1405. The upper end of the butterfly clip 1402 is higher than the upper end of the PCB fixture base 1401. The pin shaft 1403 is arranged between the two sides of the PCB fixture base 1401. One end of the second spring 1404 is connected to the corresponding end of the pin shaft 1403, and the other end of the second spring 1404 abuts against the inner wall of the corresponding butterfly clip 1402. The PCB clamp base 1401 supports the PCB board 101, and the butterfly clip 1402 is clamped and fixed under the action of the butterfly clip 1402. The butterfly clip 1402 cooperates with the pin 1403 and the spring 1404 to conveniently press the butterfly clip 1402 to achieve the clamping or loosening of the PCB board 101 by the upper end of the butterfly clip 1402, which is simple and convenient to operate.

[0053] In the natural state, a pair of butterfly clips 1402 are in a clamping state. When the two butterfly clips 1402 are pressed by hand, the upper ends of the butterfly clips 1402 can be opened, and the PCB board 101 is placed on the upper end surface of the PCB clamp base 1401 and between the upper ends of the two butterfly clips 1402. The butterfly clips 1402 are released to clamp the PCB board 101.

[0054] Optionally, in one or more embodiments of the present invention, the upper end surface of the PCB fixture base 1401 is provided with a plurality of air holes 1406, and the air holes 1406 are connected to an external negative pressure source. By providing the air holes 1406, it is convenient to connect to an external negative pressure source, so that a negative pressure adsorption effect is formed on the upper end surface of the PCB fixture base 1401, thereby assisting in the positioning and fixing of the PCB board 101, and avoiding the PCB board 101 from being out of position during the subsequent dispensing coupling process, resulting in the coupling accuracy failing to meet the set requirements.

[0055] Optionally, in one or more embodiments of the present invention, the silicon photonic engine assembly coupling system further comprises an optical power meter 17, and two of the transmission channels of the external MT ferrule 16 are optically connected to the optical power meter 17. By setting the above, before fine-tuning the position and angle of the transmitting end FA1021 and the receiving end FA1022, the position and angle of the transmitting end FA1021 can be roughly adjusted by the optical power loss values ​​of the two optical signals detected by the optical power meter 17, which can greatly improve the adjustment efficiency and accuracy.

[0056] The present invention also provides a coupling method of the silicon light engine component coupling system, comprising the following steps:

[0057] S1: Build an optical path and start the system. The power supply device 15 supplies power to the PCB board 101. The transmitting port 1011 of the PCB board 101 sends out an optical signal, which passes through the MT ferrule 1023 via the transmitting end FA1021 and then enters the external MT ferrule 16;

[0058] S2: The optical signal entering the external MT ferrule 16 is divided into four paths, wherein the first and fourth optical signals enter the optical power meter 17 through two transmitting channels, and the second and third optical signals enter the receiving channel through two transmitting channels, and enter the receiving end FA1022 via the MT ferrule 1023;

[0059] S3: the main control PC18 controls the transmitting end coupling device to clamp the transmitting end FA1021 of the MT-FA component 102, and preliminarily couple it with the transmitting port 1011 on the PCB board 101, and controls the receiving end coupling device to clamp the receiving end FA1022 of the MT-FA component 102, and preliminarily couple it with the receiving port 1012 on the PCB board 101;

[0060] S4: the main control PC18 controls the transmitting end coupling device to adjust the position and angle of the transmitting end FA1021 according to the optical signal parameters received by the optical power meter 17, so that the optical power loss value monitored by the optical power meter 17 is minimized;

[0061] S5: the main control PC18 controls the receiving end coupling device to adjust the position and angle of the receiving end FA1022 according to the current value of the source meter 21, so that the current value of the source meter 21 is maximized;

[0062] S6: glue and cure the transmitting end FA1021 and the transmitting port 1011, and glue and cure the receiving end FA1022 and the receiving port 1012 to complete the coupling of the silicon photonic engine components.

[0063] The coupling method of the silicon photonic engine component coupling system of the present invention can smoothly clamp the transmitting end FA1021 and the receiving end FA1022 through the FA clamping fixture 13. The contact part is a stainless steel spring sheet, and the clamping and releasing of the clamping fixture are controlled by a cylinder. The force and amplitude can be precisely controlled. While ensuring the clamping force, the FA will not be damaged, which greatly improves the coupling efficiency and yield of the transmitting end FA1021 and the receiving end FA1022.

[0064] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A silicon light engine component coupling system, characterized in that: The invention comprises a workbench (2), a transmitting end coupling device, a receiving end coupling device and a PCB board clamping fixture (14), wherein the transmitting end coupling device and the receiving end coupling device are respectively arranged on the workbench (2) and located on both sides of the workbench (2), the PCB board clamping fixture (14) is arranged on the workbench (2) and located between the transmitting end coupling device and the receiving end coupling device, the optical engine component (1) to be coupled is arranged at the upper end of the PCB board clamping fixture (14), the optical engine component (1) to be coupled comprises a PCB board (101) and an MT-FA component (102), the transmitting end coupling device is used to clamp the transmitting end FA (1021) of the MT-FA component (102) and couple with the transmitting port (1011) on the PCB board (101), and the receiving end coupling device is used to The receiving end FA (1022) of the MT-FA component (102) is clamped and coupled to the receiving port (1012) on the PCB board (101); the transmitting end FA (1021) and the receiving end FA (1022) are respectively connected to the receiving channel and the transmitting channel optical path on the MT plug core (1023) on the PCB board (101); the MT plug core (1023) is coupled to an external MT plug core (16); two transmitting channels of the external MT plug core (16) are optically connected to two receiving channels; the circuit connection port (1013) on the PCB board (101) is respectively electrically connected to a power supply device (15) and a source meter (21); the source meter (21) is electrically connected to a main control PC (18); and the main control PC (18) is respectively electrically connected to the transmitting end coupling device and the receiving end coupling device.

2. The silicon light engine component coupling system according to claim 1, characterized in that: The transmitting end coupling device and the receiving end coupling device both comprise a coupling base (3), a multidimensional adjustment component and an FA clamping component. The coupling base (3) is arranged on a corresponding side of the workbench (2). The multidimensional adjustment component is installed on the corresponding coupling base (3). The FA clamping components are respectively installed on the ends of the two groups of multidimensional adjustment components close to each other. The FA clamping components are used to clamp the transmitting end FA (1021) and align it with the receiving port (1012), or to clamp the receiving end FA (1022) and couple it with the receiving port (1012). The multidimensional adjustment component and the FA clamping component are respectively electrically connected to the main control PC (18).

3. The silicon light engine component coupling system according to claim 2, characterized in that: The FA clamping assembly comprises a connecting fixture (11), a cylinder assembly (12) and a FA clamping fixture (13) for clamping the transmitting end FA (1021) or the receiving end FA (1022); the connecting fixture (11) is arranged at the driving end of the multi-dimensional adjustment assembly; the cylinder assembly (12) is arranged on the connecting fixture (11); the cylinder assembly (12) is electrically connected to the main control PC (18); the FA clamping fixture (13) is arranged at the driving end of the cylinder assembly (12); and the multi-dimensional adjustment assembly can drive the connecting fixture (11) to drive the cylinder assembly (12) and the FA clamping fixture (13) to adjust the position and angle.

4. The silicon light engine component coupling system according to claim 3, characterized in that: The FA clamping fixture (13) comprises a first FA clamp body (1301) and a second FA clamp body (1302); the middle parts of the first FA clamp body (1301) and the second FA clamp body (1302) are rotatably connected via a pin (1303); a first spring (1305) is arranged between the upper parts of the first FA clamp body (1301) and the second FA clamp body (1302); a limiting pin (1304) is arranged on the inner side wall of the first FA clamp body (1301) or the second FA clamp body (1302); one end of the first spring (1305) is sleeved It is arranged on the limit pin (1304) and connected to the inner wall of the first FA clamp body (1301) or the second FA clamp body (1302). The other end of the first spring (1305) is connected to the inner wall of the second FA clamp body (1302) or the first FA clamp body (1301). The lower ends of the first FA clamp body (1301) and the second FA clamp body (1302) are respectively provided with flexible spring sheets. The driving end of the cylinder assembly (12) abuts against the upper part of the outer wall of the first FA clamp body (1301) or the second FA clamp body (1302).

5. The silicon light engine component coupling system according to claim 3, characterized in that: The cylinder assembly (12) includes a cylinder body, two air pipe joints (1201) arranged on the cylinder body and connected to an external air pressure source, an adjustment knob (1202) arranged on the cylinder body and used to adjust pressure and pressure, and a drive rod (1203), wherein the drive rod (1203) is connected to the FA clamping fixture (13), and the main control PC is electrically connected to the cylinder body and can drive the drive rod (1203) to drive the FA clamping fixture (13) to move.

6. The silicon light engine component coupling system according to claim 1, characterized in that: The PCB clamping fixture (14) comprises a PCB clamp base (1401) with a hollow interior and a T-shaped cross section, a pair of butterfly clips (1402), a pin shaft (1403), a pair of second springs (1404) and a pair of rotating shafts (1405). The PCB clamp base (1401) is mounted on the workbench (2). Grooves are respectively arranged on the side walls of both sides of the PCB clamp base (1401). The pair of rotating shafts (1405) are arranged in parallel and spaced apart in the PCB clamp base (1401), and the rotating shafts (1405) are located in the grooves on the corresponding side. The middle part of the butterfly clip (1402) extends into the groove on the corresponding side, and the middle part of the butterfly clip (1402) is sleeved on the corresponding rotating shaft (1405). The upper end of the butterfly clip (1402) is higher than the upper end of the PCB clamp base (1401). The pin shaft (1403) is arranged between the two sides of the PCB clamp base (1401). One end of the second spring (1404) is connected to the corresponding end of the pin shaft (1403), and the other end of the second spring (1404) is in contact with the inner wall of the corresponding butterfly clip (1402).

7. The silicon light engine component coupling system according to claim 6, characterized in that: The upper end surface of the PCB fixture base (1401) is provided with a plurality of air holes (1406), and the air holes (1406) are connected to an external negative pressure source.

8. The silicon light engine component coupling system according to any one of claims 1 to 7, characterized in that: It also comprises an optical power meter (17), and two transmission channels of the external MT ferrule (16) are optically connected to the optical power meter (17).

9. A coupling method for a silicon light engine component coupling system according to any one of claims 1 to 8, characterized in that: The steps include: An optical path is constructed and the system is started, a power supply device (15) supplies power to the PCB board (101), a transmitting port (1011) of the PCB board (101) emits an optical signal, which passes through the MT ferrule (1023) via the transmitting end FA (1021) and then enters the external MT ferrule (16); The optical signal entering the external MT ferrule (16) is divided into four paths, wherein the first and fourth optical signals enter the optical power meter (17) through two transmitting channels, and the second and third optical signals enter the receiving channel through two transmitting channels and enter the receiving end FA (1022) via the MT ferrule (1023); The main control PC (18) controls the transmitting end coupling device to clamp the transmitting end FA (1021) of the MT-FA component (102) and preliminarily couple it with the transmitting port (1011) on the PCB board (101), and controls the receiving end coupling device to clamp the receiving end FA (1022) of the MT-FA component (102) and preliminarily couple it with the receiving port (1012) on the PCB board (101); Coarsely adjusting the position and angle of the transmitting end FA (1021) by the transmitting end coupling device according to the optical signal parameters received by the optical power meter (17), so that the optical power loss value monitored by the optical power meter (17) is within a preset range; The main control PC (18) controls the transmitting end coupling device to adjust the position and angle of the transmitting end FA (1021) according to the optical signal parameters received by the optical power meter (17), so that the optical power loss value monitored by the optical power meter (17) is minimized; The main control PC (18) controls the receiving end coupling device to adjust the position and angle of the receiving end FA (1022) according to the current value of the source meter (21), so that the current value of the source meter (21) is maximized; The transmitting end FA (1021) and the transmitting port (1011) are glued and cured, and the receiving end FA (1022) and the receiving port (1012) are glued and cured, so as to complete the coupling of the silicon optical engine components.

Images