120 results about "Fiber coupling" patented technology

The utility model discloses a silicon optical wafer test device and an alignment coupling mechanism and a test system thereof. The alignment coupling mechanism comprises an optical fiber coupling module, a piezoelectric displacement table and a tail end connecting structure which are connected in sequence. The optical fiber coupling module comprises three translation assemblies and three rotating assemblies which are sequentially connected in series; the three translation assemblies are used for driving the tail end connecting structure to do translation motion in the first direction, the second direction and the third direction correspondingly. The three rotating assemblies are used for driving the tail end connecting structure to rotate with the first rotating shaft, the second rotating shaft and the third rotating shaft as the center correspondingly. The first direction, the second direction and the third direction are vertical in pairs; the first rotating shaft, the second rotating shaft and the third rotating shaft are perpendicular pairwise. Each assembly only needs to achieve motion adjustment on one degree of freedom, the function is single, precise control over motion adjustment is facilitated, all the assemblies only need to be sequentially connected in series, spliced and connected, implementation is simple and easy, and equipment cost can be reduced.

The invention discloses a preparation and coupling optimization method of a strip-shaped SOI waveguide adopting end face coupling, and belongs to the field of micro-nano fine structure processing and optical precision measurement. According to the method, through two-step photoetching and two-step etching, on one hand, the substrate section highly coincident with the waveguide end face can be etched on the waveguide end face, and on the other hand, it can be guaranteed that the etching broadening of the Si substrate etching channel cannot cause the hollow-out of the lower portion of the waveguide above SiO2. By using the direct-current magnetron sputtering Cr mask, the waveguide material can be prevented from being etched and damaged in the deep silicon etching process. Through the ion beam etching process, the end face of the waveguide and the etched side wall of the substrate are completely overlapped, so that part of light spots are prevented from being scattered by the Si substrate in the optical fiber coupling process, and the coupling efficiency of the waveguide is further improved. By combining the FDTD simulation result, the low-internal stress SiO2-Si3N4 antireflection film with the proper thickness is deposited on the waveguide end face through ICP-PECVD, light spots are prevented from being reflected on the waveguide end face, and the light spot coupling efficiency reaches the maximum.

This application relates to the field of laser technology and provides an integrated fiber coupling device and apparatus. The device includes a beam combining module and a coupling filter module integrated within a housing. The beam combining module polarizes and combines the laser beam, which is then coupled into a fiber combiner via a first fiber and output as a second fiber. The output is then filtered by a cladding filter unit and output through a nozzle. The coupling filter module contains multiple fixed cavities with curved walls. The first fiber at the input end of the fiber combiner and the second fiber at the output end are respectively fixed in curvature by adhering to the corresponding curved walls before output. This device improves beam quality and overall heat dissipation efficiency. The curved wall structure fixes the curvature of the fiber, reducing fiber stress and bending radius, thus solving the problems of excessive bending stress and insecure fiber fixation in existing coupling units, which lead to poor stability and reliability of laser output.

The invention provides an adjustable pulse string laser and a design method thereof. The laser comprises a pump light fiber coupling focusing system, an endoscope, a laser crystal, a passive Q-switched crystal, an active Q-switched system and a laser output mirror which are sequentially arranged according to a light path, the adjustable pulse train laser is configured to control the number of pulse trains under the condition of the same dominant frequency or output the same pulse trains under different dominant frequencies through the equivalent length control of the passive Q-switched crystal and the modulation control of the active Q-switched system in a working state. According to the invention, through cooperation of the active Q-switching system and the passive Q-switching crystal, output of a main frequency and a pulse string is obtained in a mode of combination of active Q-switching and passive Q-switching, multi-time processing of the same point in fine processing is facilitated, and single pulse energy is constant, so that a pulse string laser scheme which is lower in cost and more ingenious and uncomplicated in structure is provided; the regulation and control flexibility is good, and the stability and reliability of the laser are higher.

The invention discloses a multispectral holographic imaging system and an imaging method. The system comprises a multi-wavelength light source module which is composed of a plurality of light source assemblies which are independently driven and have different wavelengths; the optical fiber coupling module is composed of a plurality of optical fiber bundles which are connected with the emergent end face of the light source assembly and used for restraining optical signals of the light source assembly as point light sources. Light signals of the light source assembly are constrained to the light emitting area to form an equivalent point light source; the image acquisition module comprises a sample jig and an image sensor which are coaxially arranged with the emergent end face of the optical fiber bundle, and the image sensor is used for acquiring spectral interferograms of the object light and the reference light; and the control processing module is used for sequentially controlling the switching of each wavelength light source assembly, analyzing and processing a plurality of spectral interferograms, and reconstructing the three-dimensional morphology of the sample through an angular spectrum diffraction algorithm. The problems of aberration, field depth limitation, view limitation, complex structure, high cost, resolution limitation and the like in the traditional microscopic imaging technology can be solved.

The invention relates to the technical field of laser, and discloses a high-power infrared spatial optical fiber coupling device and method, and the device comprises a light beam stabilizing system, a power adjusting unit, a core coupling light path, and an optical fiber fixing unit. The light beam stabilizing system is used for carrying out pointing stabilization and collimation processing on the incident high-power infrared space light; the power adjusting unit is arranged on the light output side of the light beam stabilizing system, the light input end of the power adjusting unit corresponds to the light output end of the light beam stabilizing system, and the power adjusting unit is used for receiving the stabilized light beam output by the light beam stabilizing system and adjusting the laser power entering the core coupling light path; the core coupling light path is used for accurately focusing the stabilized light beam to the end face of the optical fiber; the optical fiber fixing unit is arranged on the output end side of the core coupling light path and used for stably clamping an optical fiber and enabling the end face of the optical fiber to be located at a focusing light spot; the optical fiber fixing unit is arranged on the light output side of the core coupling light path and used for clamping the optical fiber to be coupled so as to receive the focused light beam output by the core coupling light path.

A multi-junction laser-diode module includes (a) a multi-junction laser diode having a plurality of laser junctions stacked in a vertical dimension parallel to the fast-axes of the laser beams emitted by the laser junctions, (b) a fast-axis cylindrical lens collimating each laser beam in the fast axis, whereby the laser beams emerge from the fast-axis cylindrical lens with mutually nonparallel propagation directions, (c) a transmissive beam-deflecting element that deflects the laser beams in the fast-axis dimension after the fast-axis cylindrical lens to make their propagation directions parallel, and (d) a slow-axis cylindrical lens configured to collimate each laser beam in the slow axis. The transmissive beam-deflecting element corrects for the propagation-direction discrepancy between the laser beams, in the fast-axis dimension, caused by fast-axis collimation. The multi-junction laser-diode module can thereby produce a laser beam bundle suitable for high-brightness fiber-coupling.

The invention discloses a thin-film barium titanate electro-optical switch unit based on a composite electrode and an array thereof. The optical switch unit comprises a first waveguide optical fiber coupling module, a second waveguide optical fiber coupling module, an optical beam splitting module, an electro-optical phase shift region, an optical beam combining module, a third waveguide optical fiber coupling module and a fourth waveguide optical fiber coupling module. Wherein the composite electrode of the electro-optic phase shift region is composed of a metal electrode and a transparent conductive layer, the electrode is closer to the waveguide by utilizing the transparent characteristic of a transparent conductive material, the coupling of a light field and an electric field is effectively enhanced, and the extinction ratio is improved. Meanwhile, a barium titanate film with a high electro-optical coefficient is adopted as a waveguide material, and the performance is further optimized, so that the electro-optical switch unit has the excellent characteristics of low-voltage driving, high extinction ratio, low insertion loss and small size.

The invention relates to the technical field of solar energy utilization, and discloses a real-time tracking solar energy optical fiber leading-in system. The system comprises a sun position data acquisition module, a model establishment and illumination intensity classification module, a weak illumination intensity optical fiber import module and a strong illumination intensity optical fiber import module. The method comprises the following steps: firstly, acquiring sun position data, establishing a sunlight vertical incidence model according to the sun position data, and dividing illumination intensity into strong illumination intensity and weak illumination intensity; under the weak illumination intensity, based on a sunlight vertical incidence model, control parameters in a PID controller are optimized, a sun tracking controller is established, and sunlight energy optical fiber introduction under the weak illumination intensity is achieved; under the strong illumination intensity, the outdoor lighting device of the solar energy optical fiber is adjusted in real time, position correction is conducted through an optical fiber coupling dynamic compensation mechanism, and solar energy optical fiber introduction under the strong illumination intensity is achieved. By collecting the solar energy, the purpose of guiding the solar energy into the optical fiber is achieved, and the method is objective and accurate.

The application provides a high-sensitivity multi-gas real-time monitoring device and method, which comprises a controller, wherein the controller is connected with a main control circuit; the main control circuit is connected with an indicating laser and a mid-infrared laser array; the indicating laser and the mid-infrared laser array are connected with a multi-pass gas cell through a fiber coupling structure; a photoelectric detector is arranged on the light outlet side of the multi-pass gas cell; and the photoelectric detector is connected with the main control circuit; the controller generates modulation signals with different frequencies to modulate the mid-infrared laser array; the indicating laser emitted by the indicating laser and the mid-infrared laser emitted by the mid-infrared laser array are coupled into a coaxial light beam through the fiber coupling structure and enter the multi-pass gas cell; the photoelectric detector collects signals with target gas information passing through the multi-pass gas cell and simultaneously analyzes the concentrations of multiple target gases through a signal conditioning algorithm. The application has the characteristics of high sensitivity, low detection limit, real-time monitoring, convenient installation, strong anti-interference ability, maintenance-free and wide application range.

This invention relates to an integrated laser packaging structure suitable for automated mass production, comprising a packaging box containing an upper cooler, a lower cooler, a laser chip assembly, an optical propagation assembly, an electrical connection assembly, a heat sink, and an optical fiber tail. The lower end face of the upper cooler has an upper coupling groove, and the upper end face of the lower cooler has a lower coupling groove and a first mounting groove, forming a coupling cavity. The heat sink is located within the first mounting groove, and the upper end of the heat sink has a second mounting groove, in which the laser chip assembly is mounted. A mounting assembly is fixedly installed within the coupling cavity. The position of each component within the packaging structure is predetermined, eliminating reliance on semi-automated testing and modulation during assembly, making it suitable for assembly line production. Furthermore, the use of a grooved cooler structure instead of the traditional sheet-like structure of a cooler allows the laser chip assembly and optical propagation assembly to be located within the laser-fiber coupling space formed by the grooves, resulting in better temperature control.

1. The name of the design product: fiber-coupled single-photon detector. 2. The use of the design product: weak light detection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the field of heavy-cutting lengthened narrow right-angle heads, and discloses a heavy-cutting lengthened narrow right-angle head for a C-axis built-in ram, which comprises a spindle box, a spindle, a stand column and an unclamping cylinder assembly, the lower part of the stand column is a rectangular section, the upper part of the stand column is a revolving body, and the stand column is butted with the C-axis ram of a machine tool through an end-toothed disc; the spindle box is transversely arranged on one side of the stand column, and a gear pair composed of a spiral bevel gear shaft and a spiral bevel gear is arranged in the spindle box to drive the spindle. And the whole carbon fiber coupling is accommodated in the central through hole of the upright post. The invention provides a heavy cutting lengthened narrow right-angle head for a C-axis built-in ram, and aims to solve the problems of slow response and much mechanical seal leakage of a long-distance cooling pipeline, improve the safety, introduce low-pressure clean gas in the middle of a piston of an unclamping cylinder, mechanically switch on and switch off along with the unclamping action, be independent of the inner cooling pipeline, and do not occupy a sealing floating end. Working is reliable and the structure is compact.

1. Name of the design product: Laser (Water-cooled Ultra-high Power Blue Fiber Coupling). 2. Use of the design product: For material welding, pump source, 3D printing, laser lighting, etc. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Stereogram.

The application belongs to the technical field of spectral detection, and particularly relates to a light-weight LIBS online detection device and method with automatic focusing, wherein the device sequentially comprises a photoelectric switch, a pre-detection system, a controller, a delay timer, a pulse laser, a mirror, a zoom unit, an ellipsoidal mirror, a displacement adjustment platform, a transmission window sheet, a fiber coupling unit, a spectrometer and a signal strength detector according to a control logic and an optical propagation path. The application can easily realize zooming through the synchronous movement of the ellipsoidal mirror and the fiber coupling unit driven by the zoom lens and the displacement adjustment platform, can adapt to objects with different heights and shapes, solves the problem of large movement load in the zooming process, realizes light weight, and can judge the focusing range in advance through the telecentric lens imaging pre-detection system, so that the detection analysis efficiency is improved.

The invention may be embodied in other forms than those specifically disclosed herein without departing from itMulti-kW-class blue (400-495 nm) fiber-delivered lasers and module configurations. In embodiments, the lasers propagate laser beams having beam parameter products of <5 mm*mrad, which are used in materials processing, welding and pumping a Raman laser. In an embodiment the laser system is an integration of fiber-coupled modules, which are in turn made up of submodules. An embodiment has sub-modules having a plurality of lensed blue semiconductor gain chips with low reflectivity front facets. These are locked in wavelength with a wavelength spread of <1 nm by using volume Bragg gratings in an external cavity configuration. An embodiment has modules having of a plurality of submodules, which are combined through wavelength multiplexing with a bandwidth of <10 nm, followed by polarization beam combining. The output of each module is fiber-coupled into a low NA fiber. In an embodiment a kW-level blue laser system is realized by fiber bundling and combining multiple modules into a single output fiber.

Systems and methods include a twinaxial waveguide, comprising a sidewall, first and second supports, and first and second conductors. The sidewall has first and second sides, first and second ends, a longitudinal axis extending between the first and second ends, and outer and inner surfaces. The inner surface surrounds a waveguide core extending between the first and second ends. The first support extends between the first and second ends on the first side. The second support extends between the first and second ends on the second side. The first conductor extends along the longitudinal axis between the first and second ends of the sidewall and is supported by the first support. The second conductor extends along the longitudinal axis between the first and second ends of the sidewall and is supported by the second support. The waveguide core extends between the first and second conductors.

Provided in the present disclosure are a silicon photonics wafer test apparatus and a test method therefor, and a silicon photonics wafer test system. The silicon photonics wafer test apparatus comprises a camera assembly and a deflection optical path assembly; a prober for carrying a silicon photonics wafer; a fiber coupling module; and a driving assembly. When the driving assembly moves the silicon photonics wafer into the imaging field of view of the camera assembly, the camera assembly is adjusted such that the coordinate system is parallel to scribe lines of the silicon photonics wafer; when the driving assembly moves the deflection optical path assembly into the imaging field of view of the camera assembly, the camera assembly captures lateral images of a fiber end from at least two different directions via the deflection optical path assembly. The fiber coupling module is used for adjusting the pose of the fiber end on the basis of the lateral images and the direction of the coordinate system of the camera assembly, enabling initial alignment between the fiber end and the silicon photonics wafer. The present disclosure reduces the operational difficulty of alignment coupling between the fiber end and a silicon photonics waveguide, thereby simplifying the apparatus structure and reducing apparatus costs.

The invention discloses a high-power low-divergence-angle near-infrared semiconductor laser, belongs to the technical field of semiconductor lasers, and particularly relates to a high-power low-divergence-angle near-infrared band semiconductor laser. The problems that in the prior art, a low divergence angle and high light beam quality cannot be obtained at the same time under high-power output, and optical catastrophe damage (COD) and reliability reduction are caused by cavity surface heat accumulation are solved. The laser comprises a laser gain area, a conical waveguide area, a segmented waveguide area and a V-shaped groove structure optical fiber coupling area which are sequentially integrated in a monolithic mode in the laser propagation direction. The high-power low-divergence-angle near-infrared semiconductor laser is suitable for application scenes with high requirements on output power, light beam quality and system integration level, such as the fields of fiber laser pumping sources, laser processing, laser radars, space optical communication and the like.

The present application relates to an eye safety interlock for fiber coupled high power laser sources. A system is presented for continuously monitoring the integrity of the delivery fiber coupled to the laser source and shutting down the laser source immediately upon identifying any type of cut, break or disconnection along the delivery fiber. A pair of monitoring photodiodes are included with the laser source and used to observe the ratio of reflected light to emitted light, and if this ratio exceeds a given threshold, the laser is shut down. If there is a break, the power of the reflected light will be higher than normal, where a defined threshold is used to determine the calculated intensity indicative of the break. By using a measurement in decibels, the monitoring system only needs to employ the intensity difference to produce the reflected / delivery ratio output.

The utility model relates to the field of photovoltaic cell panel testing, and discloses a large-breadth assembly PL testing system which comprises a profile frame, two ends of the profile frame are fixedly connected with first linear guide rails, and the top ends of the first linear guide rails are connected with metal plate supporting vertical plates in a front-back sliding mode. A first linear guide rail is fixedly connected to the top end of the metal plate supporting vertical plate, a rectangular groove is formed in the middle of the second linear guide rail, a ruler is fixedly connected to the front end of the second linear guide rail, and the first linear guide rail, the metal plate supporting vertical plate, the second linear guide rail, a Y-axis crank handle and an X-axis lead screw are arranged; the positions of the optical fiber coupling laser and the CCD infrared camera can be adjusted, the operation is simple, and the movable range is not less than 1000 * 1000 mm.

An optical-fiber holding component according to the present disclosure is disposed inside a ferrule and holds a plurality of optical fibers, the optical-fiber holding component comprising: an outer surface including a first end surface and a second end surface that are arranged in a first direction; a plurality of through-holes that penetrates from the first end surface to the second end surface in the first direction and are arranged side by side in a second direction crossing the first direction; and at least one air discharge hole that extends from the outer surface so as to cross the plurality of through-holes.

The invention relates to the technical field of measuring instrument metering and testing, in particular to a measuring system with a relative pose adjusting function and a working method of the measuring system. The system comprises a dual-frequency laser and an optical fiber coupling unit which are used for providing a light reference and a voltage reference for a measuring unit; the measuring unit is used for providing measuring light to the sine arm, when relative position deviation exists between the sine arm and the measuring unit, light spots on a four-quadrant detector in the measuring unit deviate from the center position, and relative position deviation information between the sine arm and the measuring unit is output. When relative angle deviation exists between the sine arm and the measuring unit, a light spot on a position sensitive detector in the measuring unit deviates from the central position, and angle deviation information between the sine arm and the measuring unit is output. According to the invention, through the relative pose monitoring system, the micron-level relative position adjustment precision and the arc-second-level relative angle adjustment precision between the sine arm and the measurement system can be realized.

The invention discloses a multimode cladding pumping resonance space division multiplexing optical fiber amplifier and an implementation method thereof, and relates to the technical field of optical fiber amplifiers. The multimode cladding pumping resonance space division multiplexing optical fiber amplifier comprises a transmission optical fiber, an active optical fiber, a multimode pumping optical fiber and a resonant cavity; the active optical fiber is one of a multimode optical fiber, a multi-core optical fiber and a multi-core multimode optical fiber and is used for realizing stimulated radiation amplification of multichannel signal light; the multi-mode pumping optical fiber is coupled with the active optical fiber through a pumping coupling assembly to form a pumping injection path which is used for accessing an external multi-mode pumping source and injecting pumping light into a cladding of the active optical fiber; by constructing a resonant light path for pumping recycling, residual pumping is converted into reusable effective pumping, so that the residual pumping participates in the pumping effect on the active section for multiple times in the system, the equivalent pumping intensity and the accumulative absorption amount of the active section are improved under the condition that the rated power of an external pumping source is not remarkably increased, and the energy consumption of the active section is reduced. The purposes of improving the gain efficiency and reducing the thermal load are achieved.

The invention relates to a multi-layer film thickness high-precision measurement system and method based on low-coherence interference. According to the system, a low-coherence broadband light source, an optical fiber coupling module and one end of the forked end of a Y-type multimode optical fiber are sequentially and correspondingly arranged, the common end of the Y-type multimode optical fiber, a collimation module and an all-optical-fiber reflection type coaxial probe are sequentially and correspondingly arranged, the other end of the forked end of the Y-type multimode optical fiber is arranged corresponding to a spectrograph, and the spectrograph is connected with a data processing module; the all-fiber reflection type coaxial probe is used for vertically irradiating a collimated light beam to the surface of a tested multi-layer film structure sample and collecting reflected light of the tested multi-layer film structure sample, and the data processing module is used for carrying out Fourier transform on spectral data of the spectrograph and separating out optical path difference signals of all interfaces; and calculating the thickness information of the thin film in the measured multi-layer thin film structure sample. The structure is simple, the cost is low, rapid measurement can be achieved, the data analysis difficulty is low, and the thickness measurement accuracy and stability are high.

This invention provides a molecular simulation method for the pre-oxidation process of polyacrylonitrile fibers coupled with electron beam irradiation and heating, comprising the following steps: establishing a trans-syndiotactic stereotype model of polyacrylonitrile under a specific oxygen environment using computer molecular materials simulation software; inserting a temperature controller and creating a primary collision atom bombardment molecular system during the gradient heating process of polyacrylonitrile pre-oxidation using molecular dynamics methods to simulate the coupling effect of irradiation and heating; continuing the gradient heating to complete the molecular dynamics simulation of pre-oxidation; and outputting the microscopic results of the simulation process. This invention uses molecular dynamics methods to introduce electron beam irradiation during the gradient heating process of polyacrylonitrile to simulate the coupling effect of electron beam irradiation and heating in the pre-oxidation process of polyacrylonitrile. It proposes a set of controllable simulation parameters for the timing of electron beam irradiation introduction during the pre-oxidation process, which has guiding significance for exploring the pre-oxidation reaction mechanism of the coupling effect of electron beam irradiation and heating on polyacrylonitrile fibers.

The invention discloses a repetition frequency synchronous and continuously adjustable three-wavelength ultrafast fiber laser, which is generated by using a cascade nonlinear optical gain modulation technology. The laser comprises a gain switching diode, a rare earth doped optical fiber amplifier, a single-frequency continuous laser, an optical fiber coupling element, a light splitting element, a light filtering element and the like. The gain switch diode generates repetition-frequency continuously adjustable picosecond laser, the picosecond laser is divided into two paths after being amplified, one path is reserved, the other path serves as a first-order Raman scattering pumping source and provides nonlinear optical gain for single-frequency continuous laser, first-order Stokes light pulses are generated, the light pulses are divided into two paths, one path is reserved, and the other path serves as a second-order Raman scattering pumping source and provides nonlinear optical gain for single-frequency continuous laser. And the other part is used as a second-order Raman scattering pumping source to provide nonlinear optical gain for the other single-frequency continuous laser and generate a second-order Stokes light pulse. Through the cascading process, the system can output three-wavelength ultrafast laser with synchronous and continuously adjustable repetition frequency, and is suitable for the fields of nonlinear microscopic imaging, micromachining, terahertz generation and the like.

The utility model provides an infrared optical fiber coupling accessory ATR optical fiber spectrum probe data exchangeable device which comprises an optical fiber coupler IC card annular card reader unit and an ATR optical fiber spectrum probe, the optical fiber coupler IC card annular card reader unit is provided with a card reading chip and a processor which are in signal connection, and the ATR optical fiber spectrum probe comprises an ATR probe. The ATR probe is respectively connected to the light outlet knob handle and the light inlet screwing handle through the optical fiber main body, the IC card is embedded in the light outlet knob handle, the processor reads information of the IC card through the card reading chip and uploads the information to the stone spectrometer host through the power supply and communication connecting line, and the stone spectrometer host judges whether the ATR probe meets the requirement or not according to data. The data exchangeable device for the ATR optical fiber spectrum probe of the infrared optical fiber coupling accessory solves the problem of matching attribution interactive verification of the ATR optical fiber spectrum probe of the optical fiber coupling accessory and an infrared spectrometer.

The utility model relates to a kind of high-power low divergence angle near-infrared semiconductor laser, belong to semiconductor laser technical field, especially to a kind of high-power low divergence angle near-infrared waveband semiconductor laser;Solved the problems of existing technology, such as cannot obtain low divergence angle and high beam quality simultaneously under high-power output, and the optical catastrophe damage (COD) and reliability decline caused by cavity surface heat accumulation;The laser includes laser gain region, taper waveguide region, segmented waveguide region and V-shaped groove structure fiber coupling region integrated in order along the direction of laser propagation.The high-power low divergence angle near-infrared semiconductor laser is suitable for the application scene with higher requirement to output power, beam quality and system integration, such as fiber laser pump source, laser processing, laser radar and space optical communication etc.

The invention discloses an optical fiber coupling efficiency improving method based on a bat algorithm. The method comprises the following steps that optical power data are collected and preprocessed; constructing a coupling parameter search space model; initializing an improved submerged space enhancement-bat algorithm, and outputting an initial coupling parameter vector; introducing countercurrent coding to generate a submerged space vector; calculating and outputting an optimal action vector through a differentiable strategy flow mapping mechanism; obtaining a current iteration optimal bat individual; outputting a coupling parameter vector of the global optimal bat individual; and the improved submerged space enhancement-bat algorithm is recalled to perform parameter optimization calculation, so that the optimization speed and the global optimal stability of optical fiber coupling are effectively improved, the coupling loss is remarkably reduced, and the automatic adjustment precision and the optical power stability of the system are improved.