High-density data center optical fiber connection system and method based on MT insertion core

Abstract

The invention belongs to the technical field of optical fiber manufacturing, and discloses a high-density data center optical fiber connection system and method based on an MT insertion core, and the method comprises the steps: collecting the configuration parameters of an MT insertion core assembly, and carrying out the normalization arrangement of the parameters, and obtaining an insertion core connection parameter set; performing thermal field homogenization regulation and control, and outputting a ferrule thermal stability data set; connecting surface structure detail information is obtained, connecting surface mechanical balance adjustment is carried out, and a connecting surface stress allocation strategy is generated; carrying out buffer layer softening and strengthening treatment, and outputting a structure flexible connection scheme; tension evolution data of the tail connection area are extracted, tension gradual release processing is performed on the tail connection area based on the tension evolution data, a tail optical fiber connection buffer strategy is generated, the structure flexible connection scheme and the tail optical fiber connection buffer strategy are integrated to obtain a high-precision connection scheme, and the high-precision connection scheme is sent to a preset connection control terminal; and the connection stability of the MT insertion core is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of optical fiber manufacturing technology, and more specifically, to a high-density data center optical fiber connection system and method based on MT ferrules. Background Technology

[0002] With the rapid development of cloud computing, artificial intelligence, and big data industries, data centers are evolving towards ultra-large scale and ultra-high density, which places unprecedentedly stringent requirements on the port density, transmission reliability, and deployment efficiency of fiber optic connection systems. In high-density rack cabling environments, MT multi-core ferrule connection technology, with its advantages of multi-channel parallel transmission, miniaturized packaging, and rapid deployment, has become a core technology solution supporting the optical interconnect architecture of data centers. This multi-channel parallel connection method not only significantly improves the port density per unit space but also provides key technical support for the rapid expansion and flexible reconstruction of modular data centers, which is of great significance for reducing network latency, improving bandwidth utilization, and simplifying operation and maintenance management.

[0003] Existing MT ferrule connection technology has significant limitations in controlling the physical state during the connection process. Specifically, the ferrule faces the combined effects of temperature, stress, and tension fields during connection establishment. The coupling and uncontrolled operation of these three physical fields can trigger a series of cascading performance degradation problems. The ferrule material undergoes non-uniform thermal expansion deformation under local temperature rise in the connection area, causing micron-level offsets in the pre-set fiber core alignment positions. This offset accumulates and amplifies in high-density multi-core configurations. At the same time, the uneven distribution of mechanical pressing force at the connection interface leads to significant differences in the physical contact state of different fiber end faces. Some channels cannot form stable optical coupling due to insufficient contact stress or overload. In addition, in the stress concentration area transitioning from the rigid connection area of ​​the ferrule to the flexible pigtail, the fiber is subjected to uncontrollable axial and radial combined tension. This uncontrolled tension can induce bending changes in the micro-geometry of the fiber, thereby causing mode leakage and power attenuation of the optical signal during transmission. The current mainstream approach is to passively adapt to these physical field changes by improving the manufacturing precision of the ferrule and optimizing the mechanical structure of the connector. However, this solution based on high-precision hardware compensation not only significantly increases manufacturing costs and process complexity, but also struggles to cope with the effects of dynamic disturbances such as temperature fluctuations and vibration shocks in actual deployment environments. This poses a practical obstacle to the economical deployment of high-density optical interconnect technology in large-scale data centers, ultimately restricting the deep application of high-density optical interconnect technology in next-generation data center infrastructure.

[0004] In view of this, the present invention proposes a high-density data center fiber optic connection system and method based on MT ferrules to solve the above problems. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art and to achieve the above objectives, the present invention provides the following technical solution: a high-density data center fiber optic connection method based on MT ferrules, comprising:

[0006] Step S1: Collect the configuration parameters of the MT ferrule assembly and perform parameter normalization to obtain the ferrule connection parameter set;

[0007] Step S2: Perform thermal field homogenization control on the ferrule connection parameter set and output the ferrule thermal stability dataset;

[0008] Step S3: Obtain detailed information on the connection surface structure, combine it with the ferrule thermal stability dataset to adjust the mechanical balance of the connection surface, and generate a stress distribution strategy for the connection surface;

[0009] Step S4: Apply a buffer layer to the stress distribution strategy of the connection surface to soften and strengthen it, and output a flexible joint scheme for the structure.

[0010] Step S5: Extract the tension evolution data of the tail connection area, perform tension gradual release processing on the tail connection area based on the tension evolution data, generate a tail fiber connection buffer strategy, and integrate the structural flexible splice scheme and the tail fiber connection buffer strategy to obtain a high-precision connection scheme, and send the high-precision connection scheme to the preset connection control terminal.

[0011] A high-density data center fiber optic connection system based on MT ferrules includes:

[0012] Data acquisition module: Collects the configuration parameters of the MT ferrule assembly and performs parameter normalization to obtain the ferrule connection parameter set;

[0013] Thermal field uniformity module: Performs thermal field uniformity control on the ferrule connection parameter set and outputs ferrule thermal stability dataset;

[0014] Force balance module: Obtain detailed information on the connection surface structure, combine it with the ferrule thermal stability dataset to adjust the mechanical balance of the connection surface, and generate a stress distribution strategy for the connection surface;

[0015] Buffer module: The stress distribution strategy of the connection surface is softened and strengthened by the buffer layer, and the output is a flexible connection scheme.

[0016] Solution construction module: Extract tension evolution data of the tail connection area, perform tension gradual release processing on the tail connection area based on the tension evolution data, generate tail fiber connection buffer strategy, integrate structural flexible splice scheme and tail fiber connection buffer strategy to obtain high-precision connection scheme, and send high-precision connection scheme to preset connection control terminal.

[0017] The technical effects and advantages of the high-density data center fiber optic connection system and method based on MT ferrules of this invention are as follows:

[0018] This invention obtains a ferrule connection parameter set through parameter normalization, providing a unified parameter basis for multi-physics field collaborative control. Non-uniform thermal expansion deformation of the ferrule material under localized temperature rise in the connection area causes misalignment of the fiber core. Potential thermal non-uniform regions are identified through thermal field homogenization control, and local heat flow simulation and distribution are performed. Based on time-series thermal variation records, parameter combinations meeting stability criteria are selected to obtain a ferrule thermal stability dataset, achieving balanced heat distribution and reducing fiber core alignment misalignment caused by non-uniform thermal expansion. Non-uniform mechanical pressing force distribution at the connection interface leads to differences in physical contact states at different fiber end faces. Using the ferrule thermal stability dataset, preliminary force values ​​are calculated by superimposing mechanical loads. A point-to-point force transfer mechanism balances high and low force regions, generating stress adjustment at the connection surface. The system employs a matching strategy to ensure consistent physical contact between different fiber end faces, thereby forming stable optical coupling and avoiding mutual interference caused by individually optimizing the thermal or stress fields. Deformation response recording ensures that the deformation of the buffer layer remains within a controllable range, buffering the transition from the stress field to the tension field and providing a structural basis for subsequent tension release processing. By extracting tension evolution data for segmented tension reduction and fiber path smoothing, the system integrates the structural splice scheme with the tail fiber connection buffer strategy to form a high-precision connection scheme. This achieves coordinated control of the temperature, stress, and tension fields, avoiding the cascading performance degradation caused by the mutual coupling and uncontrolled decomposition of these three physical fields. It also reduces mode leakage and power attenuation caused by bending changes in the fiber's micro-geometry, thus improving the stability and transmission reliability of the MT ferrule connection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a high-density data center fiber optic connection method based on MT ferrules according to the present invention;

[0020] Figure 2 This is a schematic diagram of a high-density data center fiber optic connection system based on MT ferrules according to the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please see Figure 1 As shown in the figure, this embodiment of a high-density data center fiber optic connection method based on MT ferrules includes:

[0024] Step S1: Collect the configuration parameters of the MT ferrule assembly and perform parameter normalization to obtain the ferrule connection parameter set.

[0025] As a core component of multi-core fiber optic connections, the mechanical transfer (MT) ferrule's performance is influenced by a combination of configuration parameters. In high-density data center deployments, a single rack may contain MT ferrule assemblies of various specifications, such as 12-core, 24-core, and 48-core ferrules. These assemblies are made of engineering plastics with different coefficients of thermal expansion, including polyetherimide (PEI) and liquid crystal polymer (LCP), and their dimensions vary by micrometers depending on the manufacturer and application. If these configuration parameters are used directly for connection control without being standardized, it can lead to parameter mismatches in subsequent thermal field control and stress adjustment, ultimately affecting optical coupling efficiency. Specifically:

[0026] The initial parameter record group is constructed by sequentially reading the component's dimensions, material type, and channel number parameters from the label information, manufacturing specifications, or smart identification chip of the MT ferrule assembly. Dimensional specifications include key geometric parameters such as ferrule length, width, and guide hole spacing. For example, the guide hole center distance of a standard MT ferrule is 4.6 mm, but there may be a manufacturing tolerance of ±2 micrometers between different batches. Material type parameters indicate the thermal properties of the ferrule's main material. Channel number parameters determine the fiber core density; the core spacing of a 12-core ferrule is 250 micrometers, while that of a 24-core ferrule is either 250 micrometers or 127 micrometers, depending on the arrangement.

[0027] For each parameter in the initial parameter record group, a unit conversion and numerical range verification are performed. Unit conversion means standardizing the collected length parameters to micrometers, temperature parameters to degrees Celsius, and mechanical parameters to Newtons. Numerical range verification is conducted according to the parameter limits set in the international standard IEC61754-5 for MT ferrules. For example, the ferrule length should be within the range of 6200μm to 6600μm, and the guide hole diameter should be within the range of 700μm to 702μm. If a component's guide hole diameter is detected to be 695μm, below the lower limit, this parameter item is marked and rejected to prevent unqualified components from entering the connection process. After rejecting parameters exceeding the preset limits, the verification parameter group is obtained.

[0028] The system performs parameter correlation matching on the calibration parameter set to ensure consistency between size specifications and channel quantity. There is a strict correspondence between the number of channels and the width of the MT ferrule: the nominal width of a 12-pin ferrule is 6.4 mm, a 24-pin ferrule is 8.7 mm or 6.4 mm (depending on whether it's a dual-row or single-row design), and a 48-pin ferrule is 12.7 mm. If a component is detected as 24-pin but its width parameter is 6400 μm, the system needs to further confirm whether the component is a mislabeled dual-row 12-pin design or indeed a special single-row 24-pin specification. The correlation matching process also includes consistency verification of material type and temperature resistance rating. For example, the upper limit of the continuous operating temperature of PEI material is 170℃. If the environmental temperature parameter of a PEI ferrule component is recorded as 180℃, it is determined to be a parameter mismatch, requiring adjustment of environmental parameters or a change of material type. After completing the matching verification, a correlation parameter set is generated.

[0029] The associated parameter set is sorted and grouped, and stored according to component type. First, a primary classification is performed based on the number of channels, grouping 12-core, 24-core, and 48-core components into different groups. Within each channel number group, a secondary classification is performed based on material type; for example, the 12-core group is divided into a 12-core PEI subgroup and a 12-core LCP subgroup. Within each material type subgroup, a third-level classification is performed based on manufacturer batches and size specifications. This three-level grouping structure facilitates the implementation of differentiated thermal field control strategies for different component characteristics. After grouping and summarizing, the ferrule connection parameter set is obtained, which serves as the foundational data source for all subsequent control steps.

[0030] It should be noted that the unit conversion during parameter normalization uses the International System of Units (SI) as the standard. However, for special units commonly used in the fiber optic communication industry, such as dBm for optical power and nm for wavelength, their original units are retained for engineers' understanding. In other embodiments, the company's internal unified parameter standard system can also be used for conversion, as long as consistency in subsequent calculations is ensured.

[0031] Step S2: Perform thermal field homogenization control on the ferrule connection parameter set and output the ferrule thermal stability dataset.

[0032] During the connection establishment process of MT ferrules, a non-uniform temperature distribution forms inside the ferrule assembly due to the combined effects of thermal effects generated by optical signal transmission, ambient temperature fluctuations, and the heat generated by the equipment itself. This non-uniform temperature distribution causes differential thermal expansion of the ferrule material, resulting in a positional shift of the pre-aligned fiber core end faces. Taking a 24-core MT ferrule as an example, if the temperature in the center region of the ferrule is 3°C higher than that in the edge region, for PEI material with a thermal expansion coefficient of 0.000055 / °C, a differential deformation of approximately 1.06 micrometers will occur over a width of 6.4 mm. This deformation is close to 12% of the single-mode fiber core diameter (approximately 9 micrometers), which is sufficient to cause a significant increase in coupling loss. Therefore, thermal field homogenization control is a key factor in ensuring connection stability. Specifically:

[0033] Thermal conductivity characteristics are mapped to material type parameters in the ferrule connection parameter set. The thermal conductivity, specific heat capacity, and thermal diffusivity of different materials determine their thermal conduction behavior. A mapping relationship between material type and thermal conductivity parameters is established by querying a material thermal property database. Based on this, potential thermal inhomogeneity regions are identified. In the MT ferrule structure, the central region with densely arranged fiber cores typically experiences higher temperatures than the guide hole regions at the edges due to heat accumulation from simultaneous multi-channel transmission. Temperature gradients are also easily formed at the contact interface between the ferrule and the connector shell due to abrupt changes in thermal resistance. Using the finite element thermal analysis method, the ferrule assembly is divided into several micro-mesh elements. Based on the material thermal conductivity, assembly geometry, and estimated heat source distribution, the steady-state temperature of each mesh is calculated. Mesh elements with temperatures exceeding the regional average temperature by more than 1.5℃ are marked as potential thermal inhomogeneity regions, resulting in a set of hot zone identifiers.

[0034] Local heat flux simulation and allocation are performed on the ferrule connection parameter set based on the heat zone identifier set. The goal of heat flux simulation and allocation is to transfer heat from high-temperature regions to low-temperature regions by adjusting the component geometry or introducing auxiliary heat dissipation structures, thereby achieving temperature uniformity. Specifically, for grids identified as high-temperature regions, their thermal contact area with external heat dissipation paths is increased, for example, by adding heat dissipation fins or thermal pads at corresponding positions on the ferrule shell; for low-temperature regions, their contact area with heat dissipation paths is appropriately reduced to decrease heat loss. Taking a 12-core MT ferrule as an example, the simulated temperature value for the central fiber arrangement area is 68℃, and the edge guide hole area is 65℃. By adding a 0.5 mm thick aluminum alloy heat sink at the center of the ferrule shell, the temperature in the central area can be reduced to 66℃, while the edge area heats up to 65.5℃ due to improved overall heat dissipation, reducing the temperature difference from 3℃ to 0.5℃. After adjusting the parameter values ​​to achieve a balanced heat distribution, a balanced parameter set is generated, which includes the corrected component geometry parameters and the configuration parameters of the auxiliary heat dissipation structures.

[0035] A time-series thermal response simulation was performed on the balanced parameter set, recording the thermal variation values ​​of each parameter at different time points. The MT ferrule connection process is not instantaneous; from ferrule alignment and guide pin insertion to final locking, it typically takes 2 to 5 seconds. During this dynamic process, the temperature distribution of the components continuously evolves. The connection process is divided into several time segments, for example, every 0.5 seconds, and the thermal input changes are simulated within each segment. In the initial alignment stage (0 to 0.5 seconds), since the optical connection has not yet been established, the heat input mainly comes from the environment and equipment preheating, and the temperature change is small. In the guide pin insertion stage (0.5 to 2 seconds), mechanical friction generates instantaneous heat, and the temperature in the guide hole area may rise briefly by 1 to 2°C. In the optical connection establishment stage (2 to 5 seconds), the optical signal begins to transmit, and the temperature in the fiber core area gradually rises and tends to stabilize. The temperature values ​​of each parameter in each time segment are recorded to construct a time-series thermal variation record. For example, the temperature time sequence record of the central area of ​​a 24-pin ferrule is: [65.2℃, 65.8℃, 67.1℃, 68.3℃, 68.9℃, 69.0℃, 69.0℃]. It can be seen that the temperature tends to stabilize after 5 seconds.

[0036] A stability threshold comparison is performed on the time-series thermal variation records, and parameter combinations that meet the stability criteria are retained. The stability criteria are defined as follows: within three consecutive time segments (i.e., a 1.5-second time window), the temperature change is less than 0.3℃, and the temperature difference between regions is less than 1℃. If a parameter combination can meet the stability criteria in the final steady-state stage throughout the entire simulation, the combination is retained; otherwise, it is necessary to return to the adjustment and equalization parameter set to adjust the heat dissipation structure configuration, increase the heat dissipation capacity, or optimize the heat dissipation path until the stability criteria are met. The parameter combinations that meet the criteria are output as a ferrule thermal stability dataset, in which each parameter combination represents an effective configuration scheme that can achieve thermal field homogenization.

[0037] It should be noted that the finite element thermal analysis software used for thermal field homogenization control in this embodiment is the ANSYS Thermal module, with a mesh size of 0.1 mm, a time step of 0.1 seconds, and an ambient temperature set to 23°C, which conforms to the standard operating temperature range of a data center. Other embodiments may also use thermal simulation software such as COMSOL Multiphysics or FloEFD, and the simulation accuracy and computational efficiency can be adjusted according to actual needs.

[0038] Step S3: Obtain detailed information on the connection surface structure, combine it with the ferrule thermal stability dataset to adjust the mechanical balance of the connection surface, and generate a stress distribution strategy for the connection surface.

[0039] The optical connection quality of MT ferrules essentially depends on the physical contact state between the fiber end faces. An ideal connection requires all fiber end faces to form a uniform and stable physical contact, with an end-face gap of less than 50 nanometers and contact pressure maintained within the range of 0.5 to 2 Newtons. However, in actual connection processes, due to differences in the micro-geometry of the ferrule end faces, deviations in the fiber end-face grinding angle, and uneven distribution of the pressure applied by the connector, the contact state of different fiber channels varies significantly. In some channels, air gaps form due to insufficient contact pressure, leading to increased Fresnel reflection loss; in other channels, excessive pressure causes stress concentration on the fiber end faces, inducing microcracks and increasing scattering loss. Therefore, adjusting the mechanical balance of the connection surface is the core element in ensuring the consistency of multi-channel connections. Specifically:

[0040] The geometric contours and contact point distribution data of the fiber optic ferrule are extracted from the structural details of the connector surface to construct a structural detail dataset. The structural details of the connector surface are acquired using a high-precision 3D topography measuring instrument, achieving nanometer-level accuracy. For the end face of the MT ferrule, the measurements include: end face flatness (ideally less than 0.3 micrometers), fiber end face protrusion (0.5 to 2 micrometers), and end face grinding angle (typically an 8-degree APC angle or a 0-degree PC angle). Taking a 24-core MT ferrule as an example, the 3D coordinate data of 24 fiber end faces are obtained, with each end face consisting of a point cloud composed of approximately 500 measurement points. By fitting the point cloud data, the geometric contour of each fiber end face is obtained, including parameters such as the end face center coordinates, end face normal vector, and end face radius of curvature. The contact point distribution data is obtained through contact mechanics simulation. The end faces of the two paired MT ferrules are subjected to contact analysis under a nominal clamping force (e.g., 5 Newtons) to identify the fiber end faces that actually engage in physical contact, as well as the position and initial contact force of each contact point. The constructed structural detail dataset contains the geometric parameters and contact status information for all fiber optic channels.

[0041] Mechanical loads were superimposed on the structural detail dataset using the ferrule thermal stability dataset to calculate the initial force value at each contact point. The ferrule thermal stability dataset provides the temperature distribution after thermal field homogenization. Although temperature uniformity is improved, a residual temperature difference of approximately 0.5℃ still exists. This temperature difference causes slight deformation of the ferrule material, thus affecting the contact force distribution at the fiber end face. The method for superimposing the mechanical load is as follows: First, based on the temperature field in the thermal stability dataset, the thermal strain field of the ferrule assembly is calculated using the following formula: ,in, Represents the thermal strain field. The linear thermal expansion coefficient of the material. The change in temperature is used as the basis for calculation; then, the thermal stress field is calculated based on the thermal strain using the following formula: ,in Represents the thermal stress field. The elastic modulus of the material (approximately 3.2 GPa for PEI material) is used. Finally, the deformation caused by thermal stress is superimposed onto the original geometric profile to obtain the fiber end-face position considering thermal effects. Taking the 5th channel of a 12-core ferrule as an example, the original protrusion of the fiber end-face in this channel is 1.2 micrometers, and the temperature in the area is 0.3℃ higher than the reference temperature. For PEI material, the additional protrusion caused by thermal expansion at a distance of approximately 3 mm from the end-face to the ferrule root is approximately 0.005 micrometers, which is corrected to 1.205 micrometers. Based on the corrected end-face position, contact mechanics simulation is performed again to calculate the preliminary force values ​​at each contact point, resulting in a preliminary force value set.

[0042] The initial force set is adjusted to achieve uniform force distribution, balancing high and low force regions through an inter-point force transfer mechanism. Channels with excessively high force values ​​are designated as high-force zones, and channels with excessively low force values ​​are designated as low-force zones. The inter-point force transfer mechanism is implemented by adjusting the position and direction of the connector's clamping force. Standard MT connectors apply axial clamping force via springs, but the force transmission path can be altered by incorporating asymmetrical support pads inside the connector housing. For example, flexible pads can be added at connector locations corresponding to high-force zones to absorb some of the clamping force, while rigid pads can be used at locations corresponding to low-force zones to enhance force transmission efficiency. Finite element method (FEM) simulations are used to iteratively optimize the material, thickness, and positional distribution of the pads, ensuring that the contact force across all channels becomes more uniform.

[0043] Stress distribution rules are formulated based on balanced force sets, and adjustment amplitudes are allocated according to the priority of contact point positions. The priority of contact point positions is defined as follows: the center channel of the ferrule has a higher priority than the edge channels because the center channel typically carries critical business signals; channels with larger force deviations from the target range (1.2 ± 0.5 N) have a higher priority than channels with smaller deviations. The principle for allocating adjustment amplitudes is: the force adjustment target for high-priority channels is ±0.1 N accuracy, and for low-priority channels, it is ±0.2 N accuracy. The stress distribution rules are presented in the form of a decision table. For example: for channels numbered 1-8 (center area) with a force deviation > 0.3 N, the adjustment amplitude is 0.15 N, and the adjustment method is to replace the 1 mm thick medium-hardness gasket; for channels numbered 9-24 (edge ​​area) with a force deviation < 0.3 N, the adjustment amplitude is 0.25 N, and the adjustment method is to maintain the current configuration. This yields the stress distribution strategy for the connection surface.

[0044] A strategy verification cycle is performed on the stress distribution strategy of the connection surface to confirm that the force values ​​at all contact points meet the balance requirements. The verification cycle method is as follows: configure the gasket combination of the connector according to the stress distribution strategy, conduct actual connection tests, and use a fiber optic contact force tester to measure the contact force of each channel. If the force values ​​of all channels are within the range of 1.2±0.5 Newtons, the verification is passed; if there are still channels that exceed the range, record the number of the channel that exceeds the range and the deviation, return to adjust the stress distribution rules, modify the gasket configuration of the corresponding channel, and conduct the test verification again. Usually, 2 to 3 cycles are sufficient to achieve the balance requirements. The verified stress distribution strategy of the connection surface is taken as the final output. This strategy includes detailed parameters such as gasket material (silicone rubber, polyurethane, etc.), thickness (0.5mm to 2mm), and position (spatial coordinates corresponding to the channel number).

[0045] It should be noted that the three-dimensional topography measuring instrument used in this embodiment is a ZygoNewView series white light interferometer with a measurement field of view of 10mm × 10mm and a vertical resolution of 0.1 nanometers. The contact force tester is a Fujikura CT-30 model, with a force measurement range of 0 to 5 Newtons and an accuracy of ±0.05 Newtons. Other embodiments may also use measuring equipment with equivalent accuracy.

[0046] Step S4: Apply a buffer layer to the stress distribution strategy of the connection surface to soften and strengthen it, and output a flexible joint scheme for the structure.

[0047] Although the stress distribution strategy at the connection surface achieves initial equilibrium of the contact force, the MT ferrule is subject to dynamic loads such as vibration and impact in actual operating environments. These dynamic loads cause instantaneous fluctuations in the contact force, disrupting the stable optical connection. Therefore, a buffer layer needs to be introduced into the connection structure to absorb dynamic loads through the flexible deformation of the material, while ensuring the adhesion strength between the buffer layer and the ferrule to prevent the buffer layer from detaching and failing. Specifically:

[0048] The buffer layer thickness is evaluated to determine the buffer requirement value for each region in the stress distribution strategy at the connection surface. The adjustment range reflects the sensitivity of the contact force adjustment in that region. Regions with larger adjustment ranges have more drastic responses to external loads and require thicker buffer layers to provide greater deformation margins; regions with smaller adjustment ranges have relatively stable contact forces, and the buffer layer thickness can be appropriately reduced. The formula for calculating the buffer requirement value is as follows: In the formula, This is the required thickness of the buffer layer, in millimeters. The adjustment range in the stress distribution strategy of the connection surface is expressed in Newtons. This represents the dominant frequency of environmental vibration in this region, expressed in Hertz. The force-to-thickness conversion factor is taken as an empirical value of 0.3 mm / N. This factor represents the amount of buffer layer thickness compensation required per unit change in contact force. This is the frequency-thickness correction factor, with an empirical value of 0.002 mm / Hz. This factor takes into account the influence of high-frequency vibration on the dynamic response of the buffer layer.

[0049] Taking the 12th channel of a 24-pin connector as an example, its adjustment range is 0.25N, and it is located near the edge of the connector. The dominant frequency of the ambient vibration is 120Hz (mainly from the adjacent server fan). Substituting these values ​​into the formula, the required buffer layer thickness is calculated to be 0.315mm. Considering the available thickness specifications of the buffer layer material (typically standard thicknesses such as 0.2mm, 0.3mm, and 0.5mm), 0.5mm is selected as the buffer layer thickness for this area. Similar calculations are performed for all areas to obtain a buffer requirement set, which includes the required buffer layer thickness and recommended thickness for each area.

[0050] Based on the buffering demand set, a flexible material layer is introduced, and material properties that match the stress modulation strategy are selected. The flexible material needs to meet the following performance requirements: First, the elastic modulus of the material should be much smaller than that of the core matrix material to achieve flexible buffering function; typically, a polymeric elastomer with an elastic modulus in the range of 1 to 50 MPa is selected. Second, the material's loss factor should be relatively large to effectively absorb vibration energy; a value greater than 0.1 is recommended. Third, the material's operating temperature range should cover the data center ambient temperature (-5℃ to 60℃). Fourth, the material should have good dimensional stability, with deformation less than 1% under temperature and humidity changes. Commonly used flexible materials include: silicone rubber (elastic modulus approximately 5 MPa, loss factor approximately 0.15), polyurethane elastomer (elastic modulus 10 to 30 MPa, loss factor approximately 0.12), and acrylic foam (elastic modulus 1 to 3 MPa, tan loss factor approximately 0.20). Based on the buffering requirements of different areas, select the corresponding material type: for areas requiring a thickness greater than 0.4 mm, use acrylic foam, whose low modulus characteristics provide large deformation capacity; for areas requiring a thickness between 0.2 and 0.4 mm, use silicone rubber, which offers balanced overall performance; for areas requiring a thickness less than 0.2 mm, use polyurethane elastomer, whose higher modulus prevents excessive softness from causing a decrease in contact force. Construct the material layer configuration, labeling the material type, thickness, and coverage area for each region.

[0051] Interlayer adhesion strengthening was performed on the material layers, and the bonding strength was enhanced through micro-surface texturing. The bonding interface between the buffer layer and the ferrule substrate is the weakest link in the entire structure. If the bonding strength is insufficient, interface delamination will occur under long-term dynamic loads, leading to buffer layer failure. The adhesion strengthening methods include: First, plasma treatment of the ferrule substrate surface. Oxygen plasma bombards the surface to generate nanoscale rough textures, increasing the specific surface area. At the same time, polar functional groups such as hydroxyl and carboxyl groups are introduced into the surface to increase surface energy and enhance the chemical bonding ability with the adhesive. The plasma treatment parameters are: power 150W, treatment time 30 seconds, oxygen flow rate 50 sccm. After treatment, the surface roughness increased from 0.05μm to 0.2μm. Second, high-performance structural adhesives are selected. Two-component epoxy resin adhesives (shear strength greater than 20MPa) or modified acrylic adhesives (peel strength greater than 10N / cm) are recommended. The adhesive layer thickness is controlled between 10 and 30 micrometers to ensure sufficient wetting and filling of the surface texture while avoiding excessive adhesive layer thickness that would reduce the buffering effect. Third, a zoned curing process is adopted, with high-stress areas cured at high temperature (80℃, 1 hour) to increase cross-linking density; low-stress areas are cured at room temperature (25℃, 24 hours) to avoid the introduction of thermal stress. After adhesive strengthening treatment, a strengthening configuration set is generated, which includes detailed information such as surface treatment parameters, adhesive type, and curing process.

[0052] Flexible testing simulations were performed on the reinforced configuration set, recording the deformation response of the buffer layer under stress. The flexible testing simulation employed the Dynamic Mechanical Analysis (DMA) method. The ferrule assembly with the buffer layer configured was mounted on the DMA tester, and dynamic loads simulating actual vibrations were applied. Test conditions were set as follows: frequency scan range 10 to 300 Hz, covering the main vibration frequency bands of the data center; strain amplitude 0.1%, simulating small-amplitude vibrations; temperature 25℃, standard ambient temperature. Recorded parameters included: storage modulus (reflecting material stiffness), loss modulus (reflecting energy dissipation capacity), loss factor (the ratio of loss modulus to storage modulus, reflecting damping characteristics), and phase angle (reflecting viscoelastic response). Test data from all regions were processed to obtain deformation response records, including mechanical response parameters for different frequencies and regions.

[0053] Based on deformation response records, the parameters of the material layer configuration are adjusted to ensure that deformation remains within a controllable range. The controllable deformation range is defined as follows: under the maximum expected dynamic load (2g impact acceleration), the compressive deformation of the buffer layer does not exceed 30% of its thickness to ensure it remains in the elastic deformation stage and can fully recover; simultaneously, the compressive deformation is not less than 5% of the thickness to ensure effective absorption of impact energy. If the deformation response record for a certain area shows that the compressive deformation reaches 45% of the thickness under a 2g impact, exceeding the upper limit, it indicates that the buffer layer in that area is too soft and needs to be replaced with a material of higher modulus or have its thickness reduced; if the compressive deformation is only 3%, below the lower limit, it indicates that the buffer layer is too hard and needs to be replaced with a material of lower modulus or have its thickness increased. After parameter adjustment, it is ensured that the deformation response of the buffer layer in all areas meets the controllable range, and a flexible structural connection scheme is output. This scheme includes complete information such as the final buffer layer material distribution map, thickness configuration table, bonding process flow, and performance test data, which can directly guide production assembly.

[0054] Step S5: Extract the tension evolution data of the tail connection area, perform tension gradual release processing on the tail connection area based on the tension evolution data, generate a tail fiber connection buffer strategy, and integrate the structural flexible splice scheme and the tail fiber connection buffer strategy to obtain a high-precision connection scheme, and send the high-precision connection scheme to the preset connection control terminal.

[0055] The tail section of an MT ferrule refers to the transition zone from the rigid ferrule body to the flexible optical cable, typically 15 to 30 millimeters in length. Within this region, the optical fiber transitions from a constrained state precisely positioned by the ferrule to a relatively free state within the cable sheath, bearing complex mechanical loads. When the MT connector is inserted or removed, the operating force is transmitted through the ferrule body to the optical fiber, generating axial tensile tension in the tail section; simultaneously, the bending of the cable creates radial compressive tension in the tail section. Improper control of this combined tension can lead to microbending loss in the tail section and even fiber breakage. Experimental data shows that when the axial tension exceeds 0.5 Newtons, the microbending loss of single-mode fiber begins to increase significantly; when the tension exceeds 5 Newtons, there is a risk of fiber breakage. Therefore, tension control in the tail section is crucial for ensuring long-term connection reliability.

[0056] Axial and radial tension components were extracted from the tension evolution data of the tail connector region to construct a tension component set. The tension evolution data was acquired using fiber optic grating (FBG) sensors. Six FBG sensors were arranged at 5 mm intervals along the fiber axis in the tail connector region. The working principle of the FBG sensors is as follows: when the fiber is subjected to axial strain, the wavelength reflected by the grating shifts. The wavelength shift... With strain They are directly proportional, that is: ,in The initial reflection wavelength (e.g., 1550nm). The photoelasticity is approximately 0.22. By demodulating the reflected wavelength shift of the FBG, the strain of the optical fiber can be calculated, and then the axial tension can be calculated based on the Young's modulus (approximately 72 GPa) and cross-sectional area of ​​the fiber. The radial tension is extracted by analyzing the birefringence effect of the optical fiber. Radial compression causes stress birefringence in the fiber, resulting in a phase difference between light with different polarization states. The phase difference is proportional to the radial stress.

[0057] Taking the fourth channel fiber of a 12-core MT ferrule as an example, during the insertion and connection process, the axial tension evolution data at six measuring points are: [0.35N, 0.28N, 0.21N, 0.15N, 0.09N, 0.04N], showing a gradually decreasing trend; the radial tension data are: [0.08N, 0.12N, 0.15N, 0.18N, 0.12N, 0.05N], reaching a peak in the middle region. The axial and radial tension data are then organized separately to construct a tension component set, containing tension vector information for all fiber channels and all measuring points.

[0058] Gradual release path planning is performed on the tension component sets, and the tension release sequence is designed according to a time sequence. The goal of gradual release path planning is to optimize the geometric path and constraint method of the optical fiber in the tail region, so that the tension transitions smoothly from the ferrule root towards the optical cable, avoiding abrupt tension changes. The planning principles include: First, the axial tension release rate should be controlled within 0.015 N / mm, that is, the tension drop per millimeter should not exceed 0.015 Newtons. Too fast a release rate will cause stress concentration at the corresponding location. Second, the peak position of radial tension should be set in the middle and rear section of the tail region (15 to 20 mm from the ferrule root). At this position, the optical fiber has been released from the rigid constraint of the ferrule but has not yet entered the flexible sheath of the optical cable, which is the optimal radial support position. Third, the tension release time sequence should be synchronized with the connector insertion action. In the initial stage of insertion (the first 1 second), a higher tension is maintained to ensure ferrule alignment, and in the later stage of insertion (the last 2 seconds), the tension is released quickly to reduce residual stress.

[0059] Based on planning principles, a tension release sequence table is designed: From 0 to 1 second, maintain a tension of 0.35N at the ferrule root, constraining the optical fiber with a rigid sleeve; from 1 to 2 seconds, add a flexible rubber support ring in the area 5 to 10mm from the ferrule root to share the axial tension, reducing the tension in this section to 0.2N; from 2 to 3 seconds, arrange a stress-relieving sleeve with gradually changing hardness in the area 10 to 20mm from the ferrule root, with the hardness gradually changing from Shore A85 to Shore A60, further reducing the tension to 0.08N; after 3 seconds, the optical fiber enters the cable sheath, and the tension drops below 0.04N. A release sequence table is generated, clearly defining the tension control targets and implementation methods for each time period.

[0060] Based on the release sequence table, a segmented tension reduction operation is performed on the tail connection area, gradually reducing the tension value within each segment. The implementation of segmented tension reduction relies on optimized structural design of the tail area. The first segment (0 to 5 mm): uses a rigid stainless steel sleeve with an inner diameter precisely matching the outer diameter of the optical fiber, with a gap of less than 10 micrometers, providing stable axial constraint; the tension in this segment is maintained at 0.35 N. The second segment (5 to 10 mm): uses a flexible silicone rubber support ring with an inner diameter slightly larger than the outer diameter of the optical fiber by 30 micrometers, allowing for slight radial movement of the optical fiber. The flexible deformation of the material absorbs some of the tension, reducing the tension in this segment to 0.22 N. The third segment (10 to 20 mm): uses a gradually hardening stress-relieving sleeve, which consists of three layers of different hardness... The cable is composed of polyurethane composite material, with hardness decreasing from the inside to the outside (Shore A85 / A75 / A60). The inner surface of the sheath features a spiral groove texture with a groove depth of 0.1mm and a pitch of 2mm, guiding the optical fiber through a micro-spiral path, increasing the transition length, and reducing the tension gradient. The tension in this section drops to 0.08N. The fourth section (20-30mm) is a reserved buffer zone where the optical fiber enters the cable sheath. This area is filled with low-modulus silicone gel (modulus <0.5MPa), providing all-around flexible support for the optical fiber. The tension in this section drops to 0.04N. A decreasing tension set is obtained, containing the tension values ​​and structural configuration parameters of each section.

[0061] Fiber path smoothing is performed on the decreasing tension set, avoiding abrupt changes through a curve guidance mechanism. The fiber path smoothing is based on a mathematical model, and its principle is as follows: the fiber's central axis is considered a spatial curve, requiring a radius of curvature R ≥ 30mm (the minimum allowable bending radius of single-mode fiber) and a rate of curvature change less than 1 (s is the arc length parameter), to avoid stress concentration caused by abrupt curvature changes. The curve guidance mechanism is achieved by setting guide grooves on the inner surface of the sleeve in the tail region. The three-dimensional path of the guide groove is fitted using a Bézier curve, starting at the ferrule exit position (straight segment) and ending at the fiber optic cable entry position (possibly with a preset bending angle). Control points are selected to ensure the curve meets the constraints of radius of curvature and rate of curvature change. The model uses cubic Bézier curves for simulation. Based on the fitted curve, corresponding guide grooves are machined on the inner surface of the stress-relieving sleeve, with a groove width of 0.3mm (fiber outer diameter 0.25mm plus a 0.05mm gap) and a groove depth of 0.15mm. The fiber is arranged along the guide groove to achieve a smooth path transition. Generate a smooth path set, including the Bézier curve parameters of each fiber channel, the guide groove machining coordinates, and path quality evaluation parameters (radius of curvature, rate of curvature change).

[0062] A tail fiber connection buffering strategy is developed based on a smooth path set to ensure that all tension components are coordinated within the strategy. This tail fiber connection buffering strategy is a comprehensive solution integrating multiple aspects such as tension release sequence, structural segmentation design, and smooth path guidance. The strategy document includes the following core contents: a segmented diagram of the tail region, indicating the length, material, hardness, and constraint method of each segment; a tension distribution curve showing the variation trend of axial and radial tension along the tail region; a 3D model of the fiber path, showing the spatial orientation of each fiber; a bill of materials listing the specifications and quantities of required materials such as sleeves, support rings, and fillers; and an assembly process flow, explaining the assembly steps, curing conditions, and quality inspection standards for the tail region. This strategy ensures coordinated release of axial and radial tension in both spatial and temporal dimensions, avoiding excessive single tension component or abrupt changes in tension direction.

[0063] The structural flexible splice scheme and the tail fiber connection buffer strategy are integrated to form a unified high-precision connection scheme through parameter mapping between the two schemes. The structural flexible splice scheme focuses on stress control and buffer layer design in the ferrule connection area, while the tail fiber connection buffer strategy focuses on tension release and path optimization in the tail area of ​​the ferrule. There is an interface between the two at the root of the ferrule, requiring parameter mapping to ensure consistent connection. The parameter mapping includes: the end thickness and hardness of the buffer layer in the structural flexible splice scheme should match the inner diameter and material hardness of the sleeve in the first segment of the tail buffer strategy to avoid abrupt stiffness changes at the interface; the contact force distribution in the structural flexible splice scheme should be used as the boundary condition input for the axial tension calculation in the tail buffer strategy; and the tension release rate in the tail buffer strategy should consider the dynamic response characteristics of the buffer layer in the structural flexible splice scheme to ensure that the two structural parts work together under vibration conditions.

[0064] Finite element multiphysics coupling simulation was used to verify the performance of the integrated high-precision interconnect scheme under the combined effects of temperature, stress, and tension fields. Simulation conditions were set as follows: ambient temperature 30℃, optical signal power 10mW (generating approximately 2℃ temperature rise), vibration acceleration 0.5g, frequency 100Hz, optical cable bending angle 90°, and bending radius 50mm. Simulation results showed that the end-face contact force of all fiber channels remained within the range of 1.0 to 1.6N, with fluctuations less than 0.2N; the maximum axial tension in the tail region was 0.38N, and the maximum radial tension was 0.19N, both within safe limits; the minimum radius of curvature of the fiber path was 35mm, with smooth curvature changes; the predicted insertion loss was 0.15 to 0.25dB, and the return loss was better than -50dB, meeting the requirements for high-performance optical interconnects. The integrated scheme was confirmed to be of qualified performance, forming a unified high-precision interconnect scheme.

[0065] The high-precision connection solution is packaged and sent to the preset connection control terminal. The preset connection control terminal refers to the fiber optic connection management system in the data center. This system is typically deployed in the network operation and maintenance center and has functions such as receiving connection solutions, parsing solution parameters, generating assembly instructions, and monitoring connection quality. The high-precision connection solution uses XML or JSON standards for its data format, containing structured parameter fields such as ferrule type, material configuration, buffer layer parameters, tail structure parameters, and quality indicators. The transmission method uses a secure and encrypted network transmission protocol (such as TLS 1.3) to ensure that the solution data is not tampered with during transmission. After receiving the solution, the connection control terminal automatically parses the parameters and generates a visual operation guide for assembly workers, including 3D assembly animation, material usage list, process parameter settings, and inspection item table. Simultaneously, it distributes the solution parameters to automated assembly equipment (such as automatic dispensing machines and automatic curing ovens) for precise control. After the connection is completed, the terminal system collects optical performance parameters such as optical power and reflectivity, compares them with the expected indicators in the solution, determines whether the connection quality is qualified, and feeds the results back to the quality management database, forming a closed-loop management system.

[0066] It should be noted that in this embodiment, the center wavelength of the FBG sensor is 1550nm, and the wavelength resolution is 1pm. The selection of control points for the Bézier curve can be optimized and adjusted according to the actual cabling space constraints, or other curve fitting methods such as B-spline curves or NURBS curves can be used. The software platform for the preset connection control terminal can be a mainstream data center infrastructure management (DCIM) system, such as Nlyte Software, or a custom-developed dedicated system. The validity period of the high-precision connection solution is usually set to 6 months. After the expiration, the environmental parameters and equipment status need to be reassessed, and the solution parameters need to be updated to ensure that the connection solution always adapts to the actual working conditions.

[0067] This embodiment obtains the ferrule connection parameter set through parameter normalization, providing a unified parameter basis for multi-physics field collaborative control. Non-uniform thermal expansion deformation of the ferrule material under local temperature rise in the connection area causes misalignment of the fiber core. Potential thermal non-uniform regions are identified through thermal field homogenization control, and local heat flow simulation is performed. Based on time-series thermal variation records, parameter combinations meeting stability criteria are selected to obtain the ferrule thermal stability dataset, achieving balanced heat distribution and reducing fiber core alignment misalignment caused by non-uniform thermal expansion. Non-uniform mechanical pressing force distribution at the connection interface leads to differences in physical contact states at different fiber end faces. Using the ferrule thermal stability dataset, preliminary force values ​​are calculated by superimposing mechanical loads. A point-to-point force transfer mechanism is used to balance high and low force regions, generating stress adjustment at the connection surface. The system employs a matching strategy to ensure consistent physical contact between different fiber end faces, thereby forming stable optical coupling and avoiding mutual interference caused by individually optimizing the thermal or stress fields. Deformation response recording ensures that the deformation of the buffer layer remains within a controllable range, buffering the transition from the stress field to the tension field and providing a structural basis for subsequent tension release processing. By extracting tension evolution data for segmented tension reduction and fiber path smoothing, the system integrates the structural splice scheme with the tail fiber connection buffer strategy to form a high-precision connection scheme. This achieves coordinated control of the temperature, stress, and tension fields, avoiding the cascading performance degradation caused by the mutual coupling and uncontrolled decomposition of these three physical fields. It also reduces mode leakage and power attenuation caused by bending changes in the fiber's micro-geometry, thus improving the stability and transmission reliability of the MT ferrule connection.

[0068] Example 2

[0069] Please see Figure 2 As shown, for parts not described in detail in this embodiment, please refer to the description in Embodiment 1. A high-density data center fiber optic connection system based on MT ferrules is provided, including:

[0070] Data acquisition module: Collects the configuration parameters of the MT ferrule assembly and performs parameter normalization to obtain the ferrule connection parameter set;

[0071] Thermal field uniformity module: Performs thermal field uniformity control on the ferrule connection parameter set and outputs ferrule thermal stability dataset;

[0072] Force balance module: Obtain detailed information on the connection surface structure, combine it with the ferrule thermal stability dataset to adjust the mechanical balance of the connection surface, and generate a stress distribution strategy for the connection surface;

[0073] Buffer module: The stress distribution strategy of the connection surface is softened and strengthened by the buffer layer, and the output is a flexible connection scheme.

[0074] Solution construction module: Extract tension evolution data of the tail connection area, perform tension gradual release processing on the tail connection area based on the tension evolution data, generate tail fiber connection buffer strategy, integrate structural flexible splice scheme and tail fiber connection buffer strategy to obtain high-precision connection scheme, and send high-precision connection scheme to preset connection control terminal.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 high-density data center fiber optic connection method based on MT ferrules, characterized in that, include: Step S1: Collect the configuration parameters of the MT ferrule assembly and perform parameter normalization to obtain the ferrule connection parameter set; Step S2: Perform thermal field homogenization control on the ferrule connection parameter set and output the ferrule thermal stability dataset; Step S3: Obtain detailed information on the connection surface structure, combine it with the ferrule thermal stability dataset to adjust the mechanical balance of the connection surface, and generate a stress distribution strategy for the connection surface; Step S4: Apply a buffer layer to the stress distribution strategy of the connection surface to soften and strengthen it, and output a flexible joint scheme for the structure. Step S5: Extract the tension evolution data of the tail connection area, perform tension gradual release processing on the tail connection area based on the tension evolution data, generate a tail fiber connection buffer strategy, and integrate the structural flexible splice scheme and the tail fiber connection buffer strategy to obtain a high-precision connection scheme, and send the high-precision connection scheme to the preset connection control terminal.

2. The high-density data center fiber optic connection method based on MT ferrules according to claim 1, characterized in that, Step S1 includes: Step S11: Read the size specifications, material type, and number of channels of each component from the MT ferrule assembly one by one to build an initial parameter record group; Step S12: Perform a unified unit conversion and numerical range verification on each parameter in the initial parameter record group, and remove parameter items that exceed the preset limits to obtain the verification parameter group; Step S13: Perform parameter correlation matching on the verification parameter group to ensure the consistency between size specifications and channel quantity, and generate a correlation parameter set; Step S14: Perform parameter sorting and grouping on the associated parameter set, and store it according to component type to obtain the ferrule connection parameter set.

3. The high-density data center fiber optic connection method based on MT ferrules according to claim 2, characterized in that, Step S12 includes: Step S121: Identify the original unit type of each parameter in the initial parameter record group and map it to the standard unit system to obtain the unit conversion group; Step S122: Apply numerical range threshold filtering to the unit conversion group, mark the parameter items that exceed the threshold and perform the removal operation to generate the filter parameter group; Step S123: Perform a parameter integrity check on the filter parameter group, and supplement missing items by inferring from neighboring parameters to obtain a complete parameter group; Step S124: Perform a conversion consistency verification on the complete parameter set to ensure that the numerical logic of all parameters is consistent under the same unit, and output the verification parameter set.

4. The high-density data center fiber optic connection method based on MT ferrules according to claim 1, characterized in that, Step S2 includes: Step S21: Map the thermal conductivity characteristics of the material type parameters in the ferrule connection parameter set to identify potential thermal unevenness regions and obtain a set of thermal zone identifiers; Step S22: Perform local heat flow simulation and allocation on the ferrule connection parameter set based on the hot zone identifier set, adjust the parameter values ​​to balance the heat distribution, and generate a balanced parameter set; Step S23: Perform thermal response time-series simulation on the equilibrium parameter set, record the thermal change value of each parameter at different time periods, and construct a time-series thermal change record; Step S24: Perform a stability threshold comparison on the time-series thermal change records, retain the parameter combinations that meet the stability criteria, and output the ferrule thermal stability dataset.

5. The high-density data center fiber optic connection method based on MT ferrules according to claim 4, characterized in that, Step S23 includes: Step S231: Decompose the equalization parameter set into time segments, divide them according to a preset time interval, and obtain a time segment set; Step S232: Simulate thermal input changes for each segment in the time series segment set, record the instantaneous thermal response of the parameters, and construct a response record group; Step S233: Perform variable cumulative tracking on the response record group, calculate the continuity index of thermal change between segments, and generate a cumulative tracking set; Step S234: Adjust the thermal change parameters of the time series segment based on the cumulative tracking set to achieve a balance in the continuity index and output the time series thermal change record.

6. The high-density data center fiber optic connection method based on MT ferrules according to claim 1, characterized in that, Step S3 includes: Step S31: Extract facial geometric contours and contact point distribution data from the structural details of the connecting surfaces to construct a structural detail dataset; Step S32: Combine the thermal stability dataset of the ferrule with the mechanical load superposition of the structural detail dataset, calculate the preliminary force value of each contact point, and obtain the preliminary force value set; Step S33: Perform force distribution homogenization adjustment on the initial force value set, balance the high and low force regions through the inter-point force transfer mechanism, and generate a balanced force set; Step S34: Formulate stress distribution rules based on the equilibrium force set, allocate the adjustment range according to the priority of the contact point position, and obtain the stress distribution strategy of the connection surface; Step S35: Perform a strategy verification loop on the stress distribution strategy of the connection surface to confirm that the force values ​​of all contact points meet the equilibrium requirements, and take the verified stress distribution strategy of the connection surface as the final output.

7. The high-density data center fiber optic connection method based on MT ferrules according to claim 6, characterized in that, Step S33 includes: Step S331: Analyze the distribution of force values ​​in the initial force value set, divide the force value set into high force region and low force region, and obtain the distribution area set; Step S332: Apply the force transfer rule to the distribution area set, migrate some force values ​​from the high force area to the low force area, and generate the migrated force set; Step S333: Optimize the transfer path of the migration force set, select the path with the least interference to perform the migration, and obtain the optimized migration set; Step S334: Perform a balancing iteration on the optimized migration set, repeating the adjustment until the force value difference of all zones is minimized, generating a balanced force set; and perform a final distribution confirmation on the balanced force set to ensure that the force value after migration meets the uniformity standard.

8. The high-density data center fiber optic connection method based on MT ferrules according to claim 1, characterized in that, Step S4 includes: Step S41: Evaluate the buffer layer thickness for the adjustment range in the stress distribution strategy of the connection surface, determine the buffer demand value for each region, and obtain the buffer demand set; Step S42: Introduce a softening material layer based on the buffer demand set, select material properties that match the stress modulation strategy, and construct the material layer configuration; Step S43: Perform interlayer adhesion strengthening on the material layer configuration, enhance the bonding strength through micro-surface texture processing, and generate a strengthened configuration set; Step S44: Perform a flexibility test simulation on the reinforced configuration set, record the deformation response of the buffer layer under stress, and obtain the deformation response record; Step S45: Adjust the parameters of the material layer configuration based on the deformation response record to ensure that the deformation is within a controllable range, and output the structural flexible connection scheme.

9. The high-density data center fiber optic connection method based on MT ferrules according to claim 1, characterized in that, Step S5 includes: Step S51: Extract axial and radial tension components from the tension evolution data of the tail connection region and construct a tension component set; Step S52: Perform gradual release path planning on the tension component set, design the tension release sequence according to the time series, and generate a release sequence table; Step S53: Perform segmented tension reduction operation on the tail connection area based on the release sequence table, gradually reducing the tension value in each segment to obtain a reduced tension set; Step S54: Perform fiber path smoothing on the decreasing tension set, and avoid abrupt changes through a curve guidance mechanism to generate a smooth path set; Step S55: Develop a tail fiber connection buffer strategy based on the smooth path set to ensure that all tension components are coordinated within the strategy. Step S56: Integrate the structural flexible connection scheme and the tail fiber connection buffer strategy, form a unified high-precision connection scheme through parameter mapping between the schemes, package the high-precision connection scheme and send it to the preset connection control terminal.

10. A high-density data center fiber optic connection system based on MT ferrules, used to implement the high-density data center fiber optic connection method based on MT ferrules as described in any one of claims 1 to 9, characterized in that, include: Data acquisition module: Collects the configuration parameters of the MT ferrule assembly and performs parameter normalization to obtain the ferrule connection parameter set; Thermal field uniformity module: Performs thermal field uniformity control on the ferrule connection parameter set and outputs ferrule thermal stability dataset; Force balance module: Obtain detailed information on the connection surface structure, combine it with the ferrule thermal stability dataset to adjust the mechanical balance of the connection surface, and generate a stress distribution strategy for the connection surface; Buffer module: The stress distribution strategy of the connection surface is softened and strengthened by the buffer layer, and the output is a flexible connection scheme. Solution construction module: Extract tension evolution data of the tail connection area, perform tension gradual release processing on the tail connection area based on the tension evolution data, generate tail fiber connection buffer strategy, integrate structural flexible splice scheme and tail fiber connection buffer strategy to obtain high-precision connection scheme, and send high-precision connection scheme to preset connection control terminal.

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