Beam-expanding underwater optical fiber connector and manufacturing method thereof

Abstract

The invention discloses an underwater communication technology, and aims to provide a beam expanding type underwater optical fiber connector and a manufacturing method thereof, the main points of the technical scheme are that the beam expanding type underwater optical fiber connector comprises a connector body, the connector body comprises a plug body and a socket body, and the connecting part of the plug body and the socket body is matched with a guide groove structure through internal and external threads; therefore, the plug body and the socket body can be positioned more stably during butt joint. The plug body comprises a plug shell, an optical fiber assembly, a first beam expanding assembly, a bushing ring, a connecting sleeve, a tail clamp nut, a tail thread sleeve, a sealing gasket, a first pressing ring and a plug thread sleeve. The socket body comprises a socket shell, a second beam expanding type assembly and a second pressing ring. Compared with the prior art, the beam-expanding underwater optical fiber connector has the advantages that the connection part of the plug body and the socket body is designed to be matched with the guide groove structure through the internal and external threads, so that stable connection in an underwater environment can be ensured; the method is suitable for the technical field of underwater communication.

Description

Technical Field

[0001] The present invention relates to an underwater communication technology, and more specifically, to an expanded beam underwater optical fiber connector and a manufacturing method thereof. Background Art

[0002] With the development of ocean exploration, seabed resource development and underwater communication technology, underwater optical connectors are increasingly used; traditional underwater optical connectors have the following major defects in underwater environments: 1. Low alignment accuracy: The underwater environment is complex, and optical fiber alignment is difficult, which can easily lead to signal attenuation; 2. Poor environmental adaptability: The underwater environment has high pressure, high salinity, and large temperature changes. The sealing performance and corrosion resistance of traditional optical connectors are insufficient, which affects their service life; 3. Inconvenient maintenance: The maintenance cost of underwater equipment is high, and the installation and disassembly process of traditional optical connectors is complicated, which increases the difficulty of maintenance. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a beam-expanding underwater optical fiber connector with high alignment accuracy, good environmental adaptability and convenient maintenance, and a manufacturing method thereof.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an expanded beam underwater optical fiber connector, comprising a connector body, the connector body comprising a plug body and a socket body, the connecting portion of the plug body and the socket body adopts internal and external threads and a guide groove structure, so that the plug body and the socket body have more stable positioning when docking; The plug body comprises: The plug housing provides structural support and protects the internal fiber optic components; An optical fiber assembly is disposed in the plug housing for optical signal transmission; A beam expansion component 1 is arranged in the plug housing to improve the optical fiber coupling; A backing ring is provided in the plug housing to support the optical fiber assembly and locate the optical fiber end face to ensure accurate alignment during docking; A connecting sleeve, used for fixed connection with the plug housing; A tail clamp nut, arranged in the connection sleeve and used for fixing the optical fiber assembly; The tail screw sleeve is fixedly connected to the connecting sleeve and is used to fix the tail clamp nut to ensure the stable connection of the optical fiber assembly; A sealing gasket is provided between the contact surfaces of the plug body and the socket body; A first pressure ring is used to ensure a tight fit connection between the optical fiber assembly and the beam expansion assembly to prevent moisture from entering; The plug screw sleeve matches the thread of the socket body to ensure a firm connection between the plug body and the socket body; The socket body comprises: A socket housing, used to support and fix the optical fiber interface components; The second beam expansion component is arranged at the inner end of the first part of the socket housing to improve the optical fiber coupling; The second pressure ring is installed at the rear of the socket shell through a plurality of O-rings to ensure the tight fit of the socket body and the stability of the connector body when docking, thereby making the corresponding connection between the expanded beam component one and the expanded beam component two to prevent moisture intrusion.

[0005] The present invention is further configured as follows: the beam expanding component one and the beam expanding component two are connected correspondingly to form a beam expanding component, and the beam expanding component is a beam expanding lens, the focal length of the beam expanding lens is 50mm-200mm, and the ratio of the focal length to the optical fiber type is 1:0.5 to 1:4, so as to ensure that the incident light beam can be effectively expanded when docking the optical fibers, thereby improving the accuracy of optical fiber docking.

[0006] The present invention is further configured as follows: the plug body also includes a fine-tuning mechanism arranged inside the plug body, and the fine-tuning mechanism includes an adjusting screw mechanism and an electric drive device, wherein the adjusting screw mechanism is used to manually fine-tune the optical fiber position, and the electric drive device is used to automatically adjust the optical fiber position to achieve high-precision docking and precise focusing, thereby further improving the connection quality.

[0007] The present invention is further configured as follows: the socket body also includes a plurality of O-rings arranged in the guide grooves of the socket shell, and the sealing elasticity and material hardness ratio of the O-rings is 1:3 to 1:6 to ensure a stable connection between the plug body and the socket body and good sealing performance.

[0008] The present invention is further configured as follows: the plug housing and the socket housing are made of corrosion-resistant and high-pressure resistant materials, and the corrosion-resistant and high-pressure resistant materials are stainless steel, titanium alloy or aluminum alloy.

[0009] The present invention is further configured as follows: a quick connector is also provided on the connector body, and the quick connector includes a quick plug-in assembly and adopts a self-locking structure, so that the connector body can be quickly connected or disconnected in an underwater environment and can prevent mis-insertion during the connection process.

[0010] A method for manufacturing an expanded beam underwater optical fiber connector, characterized in that it comprises the following steps: S1. Prepare the required corrosion-resistant materials and process the structural components according to the predetermined optical fiber specifications and design requirements, including but not limited to the plug housing, socket housing, and plug screw sleeve; S2. Make and install a beam expander lens to ensure that its focal length and angle meet the requirements of optical fiber connection; S3, assembling the fine-tuning mechanism into the plug body to adjust the position accuracy when the optical fibers are connected; S4. Install sealing gaskets and pressure rings on the contact surfaces of the plug body and the socket body to ensure good water tightness, and assemble the remaining parts in order; S5. Press and fit the components of the plug body and the socket body to ensure the matching accuracy of the components and the precise docking of the optical fiber, and ensure the structural stability of the connector; S6. Use special tools to debug the optical fiber connection to ensure that the connection quality meets the standards; S7. Test the sealing performance of the connector body. When the connector body is exposed in a high-pressure underwater environment, monitor whether there is water penetration to ensure good sealing performance; S8, test the optical fiber coupling efficiency, use an optical power meter to test the coupling loss of the connector body under different working conditions, when the coupling loss is greater than the design standard, go to S9, and re-adjust the optical fiber alignment angle through the fine-tuning structure; when the coupling loss is less than or equal to the design standard, go to S11; S9, adjusting the position of the optical fiber by adjusting the spiral mechanism and the electric drive device, and after the adjustment is completed, proceed to S8 to test the optical fiber coupling efficiency again; S10. If the coupling loss is still greater than the design standard after adjusting the screw mechanism and the electric drive device, the plug body and the socket body are separated and reassembled in S5. If the coupling loss is still greater than the design standard after reassembly and adjustment for more than 3 times, the entire connector body is scrapped and remanufactured in S1. S11. Use salt spray test or seawater immersion test to ensure that the connector body does not corrode in harsh environment; S12. Test the quick connector through tensile test to ensure that the quick connector is not easy to fall off under high-frequency plugging and unplugging conditions and the connection is stable and reliable; S13. After passing the above tests, the connector body undergoes final inspection. After confirming that its optical, electrical and mechanical properties meet the design requirements, it is packaged and shipped out.

[0011] The beneficial effects of the present invention are: 1. Compared with the prior art, the expanded beam underwater optical fiber connector of the present invention can ensure a stable connection in an underwater environment by designing the connecting part of the plug body and the socket body to cooperate with the internal and external threads and the guide groove structure. This design improves the positioning accuracy of the connector body and avoids the misalignment problem of the plug body and the socket body during docking, thereby reducing the risk of degradation of optical fiber transmission signal quality or connection failure due to inaccurate docking; in addition, the design of the present invention improves the stability, reliability and long-term use performance of the connector body in harsh underwater environments.

[0012] 2. In the beam-expanding underwater optical fiber connector of the present invention, the beam-expanding lens formed by the beam-expanding component 1 and the beam-expanding component 2 can significantly improve the accuracy and efficiency of optical fiber docking. The focal length range is 50 mm to 200 mm, and the ratio of the focal length to the optical fiber type is set to 1:0.5 to 1:4, ensuring the effective expansion of the light beam during docking, thereby reducing the loss and error during optical fiber connection; this design can effectively expand the incident light beam during the docking process and improve the accuracy of optical fiber docking, which is of great significance in the field of underwater communications that require high-precision optical signal transmission; by reducing the docking error of the optical fiber end face, the overall performance of the optical fiber connector can be significantly improved, the coupling loss can be reduced, and the signal transmission quality of the system can be improved.

[0013] 3. In the present invention, the design of the fine-tuning mechanism inside the plug body enables the connector body to have a higher docking accuracy; the adjusting screw mechanism and the electric drive device can manually or automatically fine-tune the position of the optical fiber, thereby achieving high-precision optical fiber docking; especially in underwater environments, fine-tuning of the optical fiber position is crucial to avoiding signal loss. By adding a fine-tuning mechanism, the optical fiber connector can cope with various environmental changes, such as temperature fluctuations, pressure changes, etc., further ensuring the connection quality; the automatic adjustment device can also monitor the docking status of the optical fiber in real time, further improving the reliability of the connector, and is particularly suitable for optical fiber transmission systems with high precision requirements, ensuring efficient transmission of optical signals in underwater environments.

[0014] 4. The present invention has a reasonable structure, is easy to manufacture, and is simple to operate. It avoids the defects of the prior art and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the plug body in the expanded beam underwater optical fiber connector of the present invention.

[0016] Figure 2 It is a structural diagram of the socket body in the expanded beam underwater optical fiber connector of the present invention.

[0017] Figure 1-2 Figure numerals: 1. plug housing; 2. expanded beam component one; 3. bushing ring; 4. connecting sleeve; 5. tail clamp nut; 6. tail screw sleeve; 7. sealing gasket; 8. first pressure ring; 9. plug screw sleeve; 10. socket housing; 11. expanded beam component two; 12. second pressure ring. DETAILED DESCRIPTION

[0018] Reference Figure 1-2 The embodiment of the expanded beam underwater optical fiber connector and the manufacturing method thereof of the present invention is further described.

[0019] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0020] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0021] Figure 1 to Figure 2 The expanded beam underwater optical fiber connector shown includes a connector body, which includes a plug body and a socket body. The connecting portion of the plug body and the socket body is matched with internal and external threads and a guide groove structure, so that the plug body and the socket body have a more stable positioning when docking; The plug body comprises: The plug housing 1 is used to provide structural support and protect the internal optical fiber components; An optical fiber assembly is disposed in the plug housing 1 for optical signal transmission; The beam expansion component 1 2 is arranged in the plug housing 1 and is used to improve the optical fiber coupling; The backing ring 3 is arranged in the plug housing 1 to support the optical fiber assembly and position the optical fiber end face to ensure accurate alignment during docking; A connecting sleeve 4, used for fixedly connecting with the plug housing 1; A tail clamp nut 5 is disposed in the connecting sleeve 4 and is used to fix the optical fiber assembly; The tail screw sleeve 6 is fixedly connected to the connecting sleeve 4 and is used to fix the tail clamp nut 5 to ensure the stable connection of the optical fiber assembly; A sealing gasket 7 is provided between the contact surfaces of the plug body and the socket body; The first pressure ring 8 is used to ensure the tight fit connection between the optical fiber assembly and the beam expansion assembly 2 to prevent moisture from entering; The plug screw sleeve 9 cooperates with the thread of the socket body to ensure a stable connection between the plug body and the socket body; The socket body comprises: The socket housing 10 is used to support and fix the optical fiber interface components; The second beam expansion component 11 is arranged at the inner end of the first part of the socket housing 10 to improve the optical fiber coupling; The second pressure ring 12 is installed at the rear of the socket housing 10 through a plurality of O-rings to ensure the tight fit of the socket body and the stability of the connector body when docking, so as to make the corresponding connection between the expanded beam component 1 2 and the expanded beam component 2 11 to prevent moisture intrusion; Compared with the prior art, the expanded-beam underwater fiber optic connector of the present invention can ensure a stable connection in an underwater environment by designing the connecting part of the plug body and the socket body to be a combination of internal and external threads and a guide groove structure. This design improves the positioning accuracy of the connector body and avoids the misalignment problem between the plug body and the socket body during docking, thereby reducing the risk of decreased fiber optic transmission signal quality or connection failure due to inaccurate docking; in addition, the design of the present invention improves the stability, reliability and long-term use performance of the connector body in harsh underwater environments.

[0022] The beam expanding component 1 2 and the beam expanding component 2 11 are connected correspondingly to form a beam expanding component, which is a beam expanding lens. The focal length of the beam expanding lens is 50mm-200mm, and the ratio of the focal length to the optical fiber type is 1:0.5 to 1:4, so as to ensure that the incident light beam can be effectively expanded when the optical fiber is docked, and the accuracy of the optical fiber docking is improved; The beam expander lens formed by the beam expander component 1 2 and the beam expander component 2 11 can significantly improve the accuracy and efficiency of optical fiber docking. The focal length range is 50 mm to 200 mm, and the ratio of focal length to optical fiber type is set to 1:0.5 to 1:4, ensuring the effective expansion of the light beam during docking, thereby reducing the loss and error during optical fiber connection; this design can effectively expand the incident light beam during the docking process and improve the accuracy of optical fiber docking, which is of great significance in the field of underwater communications that require high-precision optical signal transmission; by reducing the docking error of the optical fiber end face, the overall performance of the optical fiber connector can be significantly improved, the coupling loss can be reduced, and the signal transmission quality of the system can be improved.

[0023] The plug body also includes a fine-tuning mechanism disposed inside the plug body, the fine-tuning mechanism including an adjusting screw mechanism and an electric drive device, wherein the adjusting screw mechanism is used to manually fine-tune the position of the optical fiber, and the electric drive device is used to automatically adjust the position of the optical fiber to achieve high-precision docking and precise focusing, thereby further improving the connection quality; The design of the fine-tuning mechanism inside the plug body enables the connector body to have higher docking accuracy; the adjusting screw mechanism and the electric drive device can manually or automatically fine-tune the position of the optical fiber, thereby achieving high-precision optical fiber docking; especially in underwater environments, fine-tuning of the optical fiber position is crucial to avoid signal loss. By adding the fine-tuning mechanism, the optical fiber connector can cope with various environmental changes, such as temperature fluctuations, pressure changes, etc., further ensuring the connection quality; the automatic adjustment device can also monitor the docking status of the optical fiber in real time, further improving the reliability of the connector, which is particularly suitable for optical fiber transmission systems with high precision requirements, ensuring efficient transmission of optical signals in underwater environments.

[0024] The socket body also includes a plurality of O-rings disposed in the guide grooves of the socket housing 10, wherein the sealing elasticity and material hardness ratio of the O-rings is 1:3 to 1:6, so as to ensure a stable connection between the plug body and the socket body and a good sealing performance; The design and material selection of the O-ring can effectively improve the sealing performance of the connector body; by precisely controlling the sealing elasticity and material hardness of the O-ring, a stable connection between the plug body and the socket body can be ensured, preventing moisture from penetrating into the connector; in addition, the O-ring is reasonably installed in a position so that the plug body and the socket body can be kept in a good fit, thereby ensuring the precise docking of the optical fiber end faces. Its superior sealing effect enables the connector to maintain a low water permeability in a high-pressure underwater environment, greatly enhancing the waterproofness and pressure resistance of the connector body.

[0025] The plug housing 1 and the socket housing 10 are made of corrosion-resistant and high-pressure-resistant materials, and the corrosion-resistant and high-pressure-resistant materials are stainless steel, titanium alloy or aluminum alloy; The material selection of the plug shell 1 and the socket shell 10 is very important. The present invention adopts corrosion-resistant and high-pressure resistant materials, such as stainless steel, titanium alloy or aluminum alloy. These materials can not only effectively prevent corrosion in underwater environments, but also maintain structural stability under extremely high water pressure; the use of such materials can enable the connector body to maintain good mechanical and optical properties during long-term use, especially in deep sea or high-pressure underwater environments, thereby ensuring the long-term stable operation of the optical fiber connector; in addition, these high-performance materials can effectively extend the service life of the connector body and reduce maintenance costs, and are suitable for various underwater optical fiber connection occasions requiring corrosion resistance, high strength, and high reliability.

[0026] The connector body is also provided with a quick connector, which includes a quick plug-in assembly and adopts a self-locking structure, so that the connector body can be quickly connected or disconnected in an underwater environment and can prevent mis-plugging during the connection process; The quick connector design makes the expanded beam underwater fiber optic connector extremely easy to operate; the quick plug-in assembly with a self-locking structure can quickly connect or disconnect the connector body in an underwater environment, greatly improving work efficiency. Especially in the case of emergency repair or replacement of fiber optic connections, operators can quickly complete the connection or disconnection operation without worrying about misplugging. This structural design can also reduce signal interruption or connection failure caused by improper connection, greatly improving the stability and safety of the connector and reducing the maintenance cost of underwater equipment.

[0027] A method for manufacturing an expanded beam underwater optical fiber connector, characterized in that it comprises the following steps: S1. Prepare the required corrosion-resistant materials, and process the structural components according to the predetermined optical fiber specifications and design requirements, including but not limited to the plug housing 1, the socket housing 10, and the plug screw sleeve 9; S2. Make and install a beam expander lens to ensure that its focal length and angle meet the requirements of optical fiber connection; S3, assembling the fine-tuning mechanism into the plug body to adjust the position accuracy when the optical fibers are connected; S4. Install sealing gasket 7 and pressure ring on the contact surface of the plug body and the socket body to ensure good water tightness, and assemble the remaining parts in order; S5. Press and fit the components of the plug body and the socket body to ensure the matching accuracy of the components and the precise docking of the optical fiber, and ensure the structural stability of the connector; S6. Use special tools to debug the optical fiber connection to ensure that the connection quality meets the standards; S7. Test the sealing performance of the connector body. When the connector body is exposed in a high-pressure underwater environment, monitor whether there is water penetration to ensure good sealing performance; S8, test the optical fiber coupling efficiency, use an optical power meter to test the coupling loss of the connector body under different working conditions, when the coupling loss is greater than the design standard, go to S9, and re-adjust the optical fiber alignment angle through the fine-tuning structure; when the coupling loss is less than or equal to the design standard, go to S11; S9, adjusting the position of the optical fiber by adjusting the spiral mechanism and the electric drive device, and after the adjustment is completed, proceed to S8 to test the optical fiber coupling efficiency again; S10. If the coupling loss is still greater than the design standard after adjusting the screw mechanism and the electric drive device, the plug body and the socket body are separated and reassembled in S5. If the coupling loss is still greater than the design standard after reassembly and adjustment for more than 3 times, the entire connector body is scrapped and remanufactured in S1. S11. Use salt spray test or seawater immersion test to ensure that the connector body does not corrode in harsh environment; S12. Test the quick connector through tensile test to ensure that the quick connector is not easy to fall off under high-frequency plugging and unplugging conditions and the connection is stable and reliable; S13. After passing the above tests, the connector body undergoes final inspection to confirm that its optical, electrical and mechanical properties meet the design requirements before packaging and shipment; The manufacturing method proposed in the present invention ensures the high precision and high reliability of the connector through multiple refined steps; in the assembly process of the optical fiber connector, the matching accuracy of all components and the optical fiber docking accuracy are ensured through strict control of each process link, especially the installation of the fine-tuning mechanism and the beam expansion lens; this manufacturing method can ensure the good sealing and stability of the connector in a high-pressure underwater environment, avoiding connection failure or optical fiber loss due to environmental factors; at the same time, through multiple tests and adjustments of the optical fiber coupling efficiency, it can ensure that the final produced connector body meets the design standards and adapts to complex and harsh working conditions, especially in deep-sea communication systems and underwater detection. It has important application value.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An expanded beam underwater optical fiber connector, characterized in that: The connector body includes a plug body and a socket body, and the connecting part of the plug body and the socket body adopts internal and external threads and a guide groove structure to make the plug body and the socket body more stably positioned when docking; The plug body comprises: A plug housing (1) for providing structural support and protecting the internal fiber optic components; An optical fiber assembly is arranged in the plug housing (1) and is used for transmitting optical signals; A beam expansion component (2) is disposed in the plug housing (1) and is used to improve optical fiber coupling; A backing ring (3) is arranged in the plug housing (1) and is used to support the optical fiber assembly and position the optical fiber end face to ensure accurate alignment during docking; A connecting sleeve (4), used for being fixedly connected to the plug housing (1); A tail clamp nut (5) is arranged in the connecting sleeve (4) and is used to fix the optical fiber assembly; A tail screw sleeve (6) is fixedly connected to the connecting sleeve (4) and is used to fix the tail clamp nut (5) to ensure a stable connection of the optical fiber assembly; A sealing gasket (7) is arranged between the contact surfaces of the plug body and the socket body; A first pressure ring (8) is used to ensure a tight fit connection between the optical fiber assembly and the beam expansion assembly (2) to prevent moisture from entering; The plug screw sleeve (9) cooperates with the thread of the socket body to ensure a stable connection between the plug body and the socket body; The socket body comprises: A socket housing (10) for supporting and fixing the optical fiber interface component; A second beam expansion component (11) is arranged at the inner end of the first part of the socket housing (10) and is used to improve optical fiber coupling; The second pressure ring (12) is installed at the rear of the socket housing (10) through a plurality of O-rings to ensure the tight fit of the socket body and the stability of the connector body when docking, thereby making the corresponding connection between the expanded beam component one (2) and the expanded beam component two (11) prevent moisture intrusion.

2. The expanded beam underwater optical fiber connector according to claim 1, characterized in that: The beam expanding component 1 (2) and the beam expanding component 2 (11) are connected correspondingly to form a beam expanding component, which is a beam expanding lens. The focal length of the beam expanding lens is 50mm-200mm, and the ratio of the focal length to the optical fiber type is 1:0.5 to 1:4, so as to ensure that the incident light beam can be effectively expanded when docking the optical fibers, thereby improving the accuracy of optical fiber docking.

3. The expanded beam underwater optical fiber connector according to claim 1, characterized in that: The plug body also includes a fine-tuning mechanism arranged inside the plug body, and the fine-tuning mechanism includes an adjusting screw mechanism and an electric drive device, wherein the adjusting screw mechanism is used to manually fine-tune the optical fiber position, and the electric drive device is used to automatically adjust the optical fiber position to achieve high-precision docking and precise focusing, thereby further improving the connection quality.

4. The expanded beam underwater optical fiber connector according to claim 1, characterized in that: The socket body also includes a plurality of O-rings arranged in the guide grooves of the socket shell (10), wherein the sealing elasticity and material hardness ratio of the O-rings is 1:3 to 1:6, so as to ensure a stable connection between the plug body and the socket body and good sealing performance.

5. The expanded beam underwater optical fiber connector according to claim 1, characterized in that: The plug housing (1) and the socket housing (10) are made of corrosion-resistant and high-pressure-resistant materials, and the corrosion-resistant and high-pressure-resistant materials are stainless steel, titanium alloy or aluminum alloy.

6. The expanded beam underwater optical fiber connector according to claim 1, characterized in that: A quick connector is also provided on the connector body, and the quick connector includes a quick plug-in assembly and adopts a self-locking structure, so that the connector body can be quickly connected or disconnected in an underwater environment and can prevent mis-plugging during the connection process.

7. A method for manufacturing the expanded beam underwater optical fiber connector according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Prepare the required corrosion-resistant materials, and process the structural components according to the predetermined optical fiber specifications and design requirements, including but not limited to the plug housing (1), the socket housing (10), and the plug screw sleeve (9); S2. Make and install a beam expander lens to ensure that its focal length and angle meet the requirements of optical fiber connection; S3, assembling the fine-tuning mechanism into the plug body to adjust the position accuracy when the optical fibers are connected; S4. Install a sealing gasket (7) and a pressure ring on the contact surface of the plug body and the socket body to ensure good water tightness, and assemble the remaining components in order; S5. Press and fit the components of the plug body and the socket body to ensure the matching accuracy of the components and the precise docking of the optical fiber, and ensure the structural stability of the connector; S6. Use special tools to debug the optical fiber connection to ensure that the connection quality meets the standards; S7. Test the sealing performance of the connector body. When the connector body is exposed in a high-pressure underwater environment, monitor whether there is water penetration to ensure good sealing performance; S8, testing the optical fiber coupling efficiency, using an optical power meter to test the coupling loss of the connector body under different working conditions. When the coupling loss is greater than the design standard, go to S9, and re-adjust the optical fiber alignment angle through the fine-tuning structure; When the coupling loss is less than or equal to the design standard, go to S11; S9, adjusting the position of the optical fiber by adjusting the spiral mechanism and the electric drive device, and after the adjustment is completed, proceed to S8 to test the optical fiber coupling efficiency again; S10. If the coupling loss is still greater than the design standard after adjusting the screw mechanism and the electric drive device, the plug body and the socket body are separated and reassembled in S5. If the coupling loss is still greater than the design standard after reassembly and adjustment for more than 3 times, the entire connector body is scrapped and remanufactured in S1. S11. Use salt spray test or seawater immersion test to ensure that the connector body does not corrode in harsh environment; S12. Test the quick connector through tensile test to ensure that the quick connector is not easy to fall off under high-frequency plugging and unplugging conditions and the connection is stable and reliable; S13. After passing the above tests, the connector body undergoes final inspection. After confirming that its optical, electrical and mechanical properties meet the design requirements, it is packaged and shipped out.

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