All-optical communication device and method based on bundled optical fiber sphere

Abstract

The invention relates to the technical field of all-optical communication systems, in particular to an all-optical communication device and method based on bundled optical fiber spheres. The core of the device comprises a clustered optical fiber sphere, a zoom lens group and a spectroscope, the clustered optical fiber sphere is formed by clustering a large number of optical fibers, and transmitting and receiving optical fibers which are physically separated are uniformly distributed on the hemispherical end face of the clustered optical fiber sphere, so that the communication capability in any direction is ensured; the zoom lens group dynamically adjusts the focal length of a light path and optimizes the light beam emission and signal receiving effects; the spectroscope separates an optical path based on wavelength selectivity, and realizes transmit-receive isolation under a common aperture. According to the method, a traditional mechanical control scheme is replaced by an all-optical signal transmission mechanism, and non-blind area omnidirectional communication is realized. According to the invention, the size, weight and power consumption of the system are significantly reduced, the communication reliability and environmental adaptability are improved, and the system is suitable for satellite interconnection, unmanned aerial vehicle clusters, military communication and other scenes.

Description

Technical Field

[0001] This invention relates to the field of all-optical communication system technology, and specifically to an all-optical communication device and method based on a bundled fiber optic sphere. Background Technology

[0002] Laser communication technology, as a key means of modern information transmission, demonstrates significant advantages in scenarios requiring high bandwidth, low latency, and strong anti-interference capabilities, and is widely used in aerospace, military defense, and industrial automation. Traditional laser communication systems primarily rely on an APT (acquisition, aiming, and tracking) technology architecture, achieving dynamic beam stabilization through the coordinated control of mechanical actuators (such as gimbals or 2D pan-tilt units) and optical components (such as piezoelectric ceramic mirrors). The mechanical layer handles large-scale offset compensation, while the optical layer undertakes high-frequency fine-tuning tasks. The two are controlled in a closed-loop manner through FPGA chips and adaptive algorithms. However, this technical solution has inherent limitations: First, the mechanical structure results in a large terminal size, high weight, and high power consumption, making it difficult to adapt to space- and energy-sensitive platforms such as satellites and drones. Second, the rotation range of the mechanical gimbal is limited by the physical structure, failing to achieve omnidirectional coverage of the hemispherical airspace, resulting in communication blind spots. It cannot support parallel access from multiple dynamic targets, nor can it respond to real-time communication needs from signals in any direction. Furthermore, the multi-level control loops of the mechanical and optical systems have coupling problems; the fine tracking system needs to compensate for coarse tracking residual errors in real time, which can easily lead to control oscillations due to response delays, reducing system stability. Finally, traditional optical system parameters are fixed, lacking dynamic adaptability, and the closed architecture has insufficient scalability, making it difficult to increase capacity through modularization. These shortcomings severely restrict the application efficiency of laser communication technology in high-speed mobile scenarios.

[0003] Therefore, the existing technology still needs further development. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide an all-optical communication device and method based on a bundled fiber optic sphere to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned technical objectives, according to a first aspect of the present invention, the present invention provides an all-optical communication method based on a bundled fiber optic sphere, comprising: S100: Transmit optical signals through the transmitting optical fiber of the bundled fiber sphere; S200: Receives optical signals through the receiving optical fiber of the bundled fiber sphere; The bundled fiber sphere has a hemispherical end face, and the transmitting fiber and the receiving fiber are evenly distributed and intersected on the hemispherical end face.

[0006] Specifically, it also includes: The focal length of the light signal is adjusted using a zoom lens group to optimize the transmission and reception of the light signal.

[0007] Specifically, the focal length adjustment steps of the zoom lens group include: The focal length of the zoom lens group is dynamically adjusted based on the communication distance and orientation to collimate or focus the emitted light signal and converge the received light signal onto the hemispherical end face.

[0008] Specifically, it also includes: A beam splitter is used to separate the optical path, wherein the beam splitter has a semi-reflective and semi-transparent characteristic for the first wavelength optical signal and a high reflective characteristic for the second wavelength optical signal.

[0009] Specifically, the first wavelength includes the infrared band, and the second wavelength includes the visible light band.

[0010] Specifically, the transmitting and receiving optical fibers are distributed in a hexagonal close-packed or randomly uniformly distributed pattern on the hemispherical end face.

[0011] Specifically, the optical signal is generated by a laser and coupled to the transmitting optical fiber via an optical fiber.

[0012] Specifically, the laser emits a modulated laser signal in the infrared band.

[0013] Specifically, the optical signal transmitted through the receiving optical fiber is converted into an electrical signal by a photodetector for processing.

[0014] According to a second aspect of the present invention, an all-optical communication device based on a bundled fiber optic sphere is provided, comprising: A bundled fiber optic sphere having a hemispherical end face on which transmitting and receiving fibers are disposed in a crosswise and uniformly distributed manner. A laser emitting unit, optically coupled to the emitting fiber, is used to emit optical signals; A signal receiving unit, optically coupled to the receiving fiber, is used to receive optical signals; A zoom lens assembly is positioned in front of the optical path on the hemispherical end face of the bundled optical fiber sphere, and is used to adjust the focal length of the optical signal; A beam splitter is disposed between the zoom lens group and the bundled fiber optic sphere. The beam splitter is configured to be semi-reflective and semi-transparent to a first wavelength optical signal and highly reflective to a second wavelength optical signal.

[0015] Beneficial effects: This invention achieves several technological breakthroughs and performance improvements through an all-optical communication scheme based on bundled fiber optic spheres: Firstly, the use of a physically bundled fiber optic hemispherical end face structure allows the transmitting and receiving fibers to be evenly distributed and intersected in space, fundamentally eliminating communication blind spots caused by mechanical structures, achieving true omnidirectional coverage, and significantly improving the communication reliability of the system in dynamic multi-target scenarios. Secondly, by replacing traditional mechanical actuators with all-optical devices, complex moving parts such as universal joints and precision tracking mirrors are eliminated, significantly reducing the size, weight and power consumption of the terminal, and enhancing its deployment adaptability on mobile platforms such as satellites and drones. Third, through the coordinated design of the zoom lens group and the beam splitter, dynamic optimization of the optical path and wavelength selective separation are achieved: the zoom lens can adjust the focal length in real time according to the communication distance to ensure the collimation of the emitted beam and the convergence efficiency of the received optical signal; the beam splitter achieves isolation between the emitted and received optical paths under the common aperture based on wavelength characteristics, effectively suppressing channel crosstalk and improving the signal-to-noise ratio. Fourth, the system architecture is highly integrated, with the core optical path functions embedded in the optical fiber medium, reducing dependence on external mechanical structures, avoiding the risks of control loop oscillation and mechanical drift, and simplifying the calibration and maintenance process. Fifth, the solution retains the advantages of laser communication, such as high bandwidth, anti-interference and spectrum-free resources, and supports functional expansion through an open architecture, providing a more flexible and reliable solution for scenarios such as military covert communication, UAV swarm collaboration and deep space exploration. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall hemispherical structure of the all-optical communication device based on a bundled fiber optic sphere provided in a specific embodiment of the present invention. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0018] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0019] Please see Figure 1 This invention provides an all-optical communication method based on a bundled fiber optic sphere, comprising: S100: Transmit optical signals through the transmitting optical fiber of the bundled fiber sphere; It should be further explained that the bundled fiber sphere is composed of a large number of fiber bundles, preferably 5,000 to 20,000 fibers, which can be single-mode or multimode fibers. For example, the mode field diameter of single-mode fiber is 9 μm, and the core diameter of multimode fiber is 50 μm or 62.5 μm, in order to balance transmission bandwidth and coupling efficiency.

[0020] S200: Receives optical signals through the receiving optical fiber of the bundled fiber sphere; The bundled fiber sphere has a hemispherical end face, and the transmitting fiber and the receiving fiber are evenly distributed and intersected on the hemispherical end face.

[0021] It should be further explained that the bundling process first involves aligning and curing one end of the optical fiber using a precision clamp, then curing it with epoxy resin adhesive at room temperature for 24 hours to form a bundling end interface with a diameter of approximately 5 mm. The other end is treated using a fused taper process, heated to 1800°C in a high-temperature furnace and stretched to form a hemispherical end face. This is then polished with a diamond polisher to a surface roughness of less than 1 nm to ensure optical transparency. The radius of curvature of the hemispherical end face is preferably between 10 mm and 50 mm to accommodate different aperture requirements. On the end face, the transmitting and receiving optical fibers are distributed in a cross-uniform pattern, such as a hexagonal close-packed arrangement, with 15 to 25 fibers distributed per square millimeter. This ensures that a local area from any angle (e.g., within ±90 degrees of the hemispherical normal direction) simultaneously contains at least 3 to 5 transmitting fibers and an equal number of receiving fibers, achieving blind-spot-free coverage. In implementation, a transmitting fiber connects to a laser, and a receiving fiber connects to a detector. The optical signal transmission step includes coupling the laser output to the input end of the transmitting fiber and focusing the laser beam onto the fiber core using a lens system (such as an aspherical lens), optimizing the coupling efficiency to over 85%. The optical signal reception step involves capturing external incident light through a receiving fiber and guiding it to the detector. The advantages of this method are the elimination of blind spots inherent in traditional mechanical alignment, achieving true omnidirectional communication, reducing system size by over 50%, and weight by 40%. It is particularly suitable for satellite or UAV platforms, improving deployment flexibility and reliability.

[0022] Specifically, it also includes: using a zoom lens group to adjust the focal length of the light signal in order to optimize the transmission and reception of the light signal.

[0023] It should be further explained that the zoom lens assembly consists of multiple optical lenses, including a combination of convex and concave lenses. The lens material is preferably BK7 glass or fused silica to reduce chromatic aberration. The zoom lens assembly is positioned approximately 10mm to 100mm in front of the hemispherical end face of the bundled fiber optic sphere. The focal length is continuously adjusted via an electric drive mechanism (such as a stepper motor) or a manual knob, with the adjustment range preferably from 10mm to 500mm. For the transmitting optical path, the focal length adjustment is dynamically based on the target distance: when the communication distance is greater than 1 kilometer, the focal length is set to telephoto mode (e.g., 300mm to 500mm) to collimate the laser beam emitted from the transmitting fiber, compressing the divergence angle to below 0.1 milliradians to ensure concentrated energy transmission; when the distance is less than 100 meters, the focal length is set to short focal length mode (e.g., 10mm to 50mm) to focus the beam to a specific point and improve signal strength. For the receiving optical path, the zoom lens assembly adjusts the convergence point according to the incident light angle: for example, when the light signal is incident from a 30-degree angle, the focal length is automatically adjusted to 50mm, so that the light spot is accurately imaged on the receiving optical fiber at the hemispherical end face, and the diameter of the imaged light spot is controlled within 20μm to match the fiber core diameter. In implementation, zoom control is achieved through a microprocessor. Based on real-time distance and azimuth data input from sensors (such as GPS or laser rangefinders), a PID algorithm is used to calculate the optimal focal length value. Preferably, a focal length threshold is set, such as a focal length of 200mm at a distance of 500 meters. The reason for choosing this value is to balance the beam collimation requirements and system volume, and to avoid aberrations caused by excessive magnification. The beneficial effects are that the optical path performance is dynamically optimized, the signal transmission efficiency is improved by more than 30%, and the impact of environmental disturbances is reduced, which is especially suitable for real-time compensation in high-speed motion scenarios such as the rolling of drones.

[0024] Specifically, the focal length adjustment step of the zoom lens group includes: dynamically adjusting the focal length of the zoom lens group based on the communication distance and orientation, so that the emitted light signal is collimated or focused, and the received light signal is converged on the hemispherical end face.

[0025] It should be further explained that the specific steps of focal length adjustment include: dynamic adjustment is achieved based on closed-loop control. First, the real-time distance d (unit: meters) and azimuth angle θ (unit: degrees) of the target are obtained through a position sensor (such as an inertial navigation system). Then, the microprocessor calculates the optimal focal length f (unit: millimeters) according to a preset algorithm. The algorithm steps include: calculating the focal length f = k The focal length is calculated as d / cosθ, where k is a proportionality coefficient, preferably between 0.2 and 0.5. This coefficient is chosen to simulate the ideal optical imaging formula, simplifying calculations while maintaining accuracy. For example, when d = 1000 meters and θ = 0 degrees, f = 300 mm. For transmitting optical signals, the collimation process involves adjusting the zoom lens group to maintain the output beam diameter between 5 mm and 10 mm and the divergence angle less than 0.2 milliradians. The focusing process ensures the beam convergence point diameter is less than 1 mm. For receiving optical signals, the focusing step involves adjusting the lens position to match the incident light spot size to the diameter of the receiving fiber end face, ensuring that more than 90% of the optical power is captured. In practice, the focal length adjustment step is set to 1 mm, with a response time of less than 10 milliseconds to avoid communication delays. Preferably, for typical application scenarios (such as satellite communication at a distance of 500 km), the focal length is optimized to 400 mm; for short-range communication with UAVs (50 meters), the focal length is set to 20 mm. These preferred values ​​are chosen based on the Rayleigh criterion and the numerical aperture of the fiber to ensure optimal performance at the diffraction limit. The beneficial effect is that adaptive optics correction is achieved, reducing the bit error rate to 10. -9 The following improvements enhance the system's robustness in variable environments.

[0026] Specifically, it also includes: using a beam splitter to separate the optical path, wherein the beam splitter has a semi-reflective and semi-transparent characteristic for the first wavelength optical signal and a high reflective characteristic for the second wavelength optical signal.

[0027] It should be further explained that the beam splitter adopts an optical flat structure, made of fused silica with a thickness of 3mm to 5mm, and coated with a special thin film. The thin film design achieves semi-reflective and semi-transparent characteristics for the first wavelength (e.g., 1053nm infrared light), with reflectivity and transmittance each at 50% ± 5%, the error controlled by the coating process; for the second wavelength (e.g., the visible light band 400-700nm), it achieves high reflectivity, with a reflectivity greater than 95%. The beam splitter is mounted at a 45-degree angle between the zoom lens group and the bundled fiber sphere, approximately 5mm to 20mm from the hemispherical end face, ensuring orthogonal separation of the optical paths. In implementation, in the transmitting optical path, the 1053nm laser portion is transmitted through the beam splitter and exits through the zoom lens group; in the receiving optical path, the externally incident 1053nm signal portion is reflected by the beam splitter to the detector, while visible light is highly reflected to suppress background interference. The beam splitter is fixed by a precision bracket with an angular tolerance of less than 0.1 degrees. The beneficial effects are that it achieves efficient separation of the common aperture optical path, suppresses channel crosstalk to below -40dB, and improves the signal-to-noise ratio; at the same time, it simplifies the system structure, reduces the need for additional filters, and reduces costs by more than 20%.

[0028] Specifically, the first wavelength includes the infrared band, and the second wavelength includes the visible light band.

[0029] It should be further explained that the first wavelength is preferably 1053nm infrared light, as it falls within the atmospheric transmission window, has an attenuation coefficient of less than 0.2dB / km, and avoids interference with common communication bands (such as 1550nm). The second wavelength, visible light, is used for alignment assistance or ambient light compatibility; for example, 550nm green light is used as an indication signal. In implementation, the laser's center wavelength is strictly controlled within the range of 1053nm ± 1nm, and output is stabilized through temperature feedback. The thin-film spectral characteristics of the beam splitter are optimized at 1053nm, and the half-reflection / half-transmission ratio is adjustable, for example, by using multilayer dielectric films to achieve precise control. The rationale for choosing these wavelengths is that 1053nm infrared light has high penetration and stealth, making it suitable for military applications; visible light reflection facilitates visual calibration. The beneficial effect is enhanced system versatility, support for dual-band operation, and a 40% improvement in deployment adaptability.

[0030] Specifically, the transmitting and receiving optical fibers are distributed in a hexagonal close-packed or randomly uniformly distributed pattern on the hemispherical end face.

[0031] It should be further explained that in the hexagonal close-packed pattern, the optical fibers are arranged in a hexagonal array, with the spacing between adjacent fibers preferably between 50μm and 100μm. This is achieved during manufacturing using a precision micro-positioning system, such as using a CNC machine tool to fix the fibers within a mold, ensuring uniform density. The random uniform distribution pattern generates random coordinates through computer algorithms to avoid periodic patterns; for example, the Monte Carlo method is used to allocate fiber positions, with the standard deviation controlled within 10μm. In implementation, the choice of distribution pattern is based on the application scenario: hexagonal close-packed is suitable for high-density communication, accommodating 20 fibers per square millimeter; random distribution is suitable for anti-interference requirements, reducing pattern noise. The beneficial effects include improved spatial diversity gain, increasing signal coverage uniformity to over 95%, and reducing the impact of multipath effects.

[0032] Specifically, the optical signal is generated by a laser and coupled to the transmitting optical fiber via an optical fiber.

[0033] It should be further noted that the laser is preferably a distributed feedback (DFB) semiconductor laser with an adjustable output power of 10mW to 500mW, a center wavelength of 1053nm, and a linewidth of less than 1MHz to support high-speed modulation. The coupling process is achieved through an optical fiber coupler, which includes a lens group (such as an aspherical lens and a collimating lens) to focus the laser beam onto the input end of the transmitting fiber. The focused spot diameter matches the fiber mode field diameter (e.g., 9μm), and the coupling efficiency is optimized to over 90%. In implementation, the laser drive circuit provides a constant current, and the modulation method uses intensity modulation (OOK) or advanced modulation (such as QPSK), achieving a data rate of up to 10Gbps. The beneficial effects are the provision of a stable, high-bandwidth light source, combined with the low loss of the optical fiber (0.2dB / km), enabling reliable communication over distances of several kilometers.

[0034] Specifically, the laser emits a modulated laser signal in the infrared band.

[0035] It should be further noted that the modulation signal is generated by a digital signal processor (DSP). When the modulation format is OOK, the extinction ratio is greater than 20dB; when it is QPSK, the symbol rate reaches 5G symbols / second. The laser temperature is controlled at 25°C ± 0.1°C using a thermoelectric cooler (TEC) to stabilize the wavelength. In implementation, a modulation threshold is set, such as an input voltage threshold of 0.7V corresponding to the laser switch. This value is chosen to match the standard CMOS level and ensure compatibility. The beneficial effect is improved noise immunity in data transmission, with a bit error rate below 10%. -12 This meets the requirements for high-definition video transmission.

[0036] Specifically, the optical signal transmitted through the receiving optical fiber is converted into an electrical signal by a photodetector for processing.

[0037] It should be further noted that the photodetector is an InGaAs APD detector with a response wavelength range of 1000nm to 1600nm, a sensitivity of -35dBm, and an adjustable gain of 10 to 100 times. The conversion steps include: the optical signal output from the receiving fiber is directly incident on the photosensitive surface of the APD; the generated photocurrent is amplified by a transimpedance amplifier (TIA), with a preferred amplification factor of 10⁴ to 10⁶ V / A; subsequently, it is sampled by an ADC and demodulated by a DSP. In practice, the detector's dark current is controlled below 1nA, and the bandwidth is greater than 1GHz to handle high-speed signals. The beneficial effects are high-sensitivity detection, reliable operation even in low-light environments (such as -50dBm), and an extension of the system's dynamic range to 60dB.

[0038] This invention provides another embodiment, which offers an all-optical communication device based on a bundled fiber optic sphere. The all-optical communication device based on a bundled fiber optic sphere includes: A bundled fiber optic sphere having a hemispherical end face on which transmitting and receiving fibers are disposed in a crosswise and uniformly distributed manner. A laser emitting unit, optically coupled to the emitting fiber, is used to emit optical signals; A signal receiving unit, optically coupled to the receiving fiber, is used to receive optical signals; A zoom lens assembly is positioned in front of the optical path on the hemispherical end face of the bundled optical fiber sphere, and is used to adjust the focal length of the optical signal; A beam splitter is disposed between the zoom lens group and the bundled fiber optic sphere. The beam splitter is configured to be semi-reflective and semi-transparent to a first wavelength optical signal and highly reflective to a second wavelength optical signal.

[0039] It should be further explained that the hemispherical end face of the bundled fiber optic sphere has a diameter of 20mm and a radius of curvature of 25mm. It is composed of 10,000 single-mode fibers bundled together, with the transmitting and receiving fibers arranged in a hexagonal close-packed configuration. The laser transmitting unit is a 1053nm DFB laser with an output power of 100mW, connected to the bundled end via fiber optic patch cords. The signal receiving unit is an APD detector array, with each detector corresponding to a set of receiving fibers, and the output is amplified by a TIA. The zoom lens assembly consists of three lenses (biconvex lens, plano-concave lens, and meniscus lens), with an electrically adjustable focal length range of 20mm to 400mm, driven by a stepper motor. The beam splitter is a fused silica flat plate, 4mm thick, mounted at a 45-degree angle, with a thin-film coating optimized for 1053nm. The entire system is encapsulated in an aluminum housing, measuring 100mm × 100mm × 50mm and weighing approximately 300 grams. During implementation, the components are aligned using an optical platform, with an optical axis overlap tolerance of less than 0.01mm. (See attached figures for details.) Figure 1 The overall structure of the system is shown, with the hemispherical end face of the bundled fiber optic sphere located at the front, the zoom lens group adjusting the optical path at the front, and the beam splitter internally for optical separation. The laser and detector are connected to the back end via optical fiber; this structure ensures omnidirectional communication capability. The benefits include high system integration, power consumption below 5W, support for multi-target parallel communication, and in UAV applications, link establishment time can be reduced to milliseconds, with reliability improved by 50%.

[0040] For further information, please refer to [link / reference]. Figure 1 , Figure 1The workflow of an all-optical communication device based on a clustered fiber optic sphere is demonstrated: A laser, acting as the emission source, generates red laser light, which is first collimated or focused by a zoom lens. The adjusted beam is then incident on a beam splitter, designed for a specific wavelength, allowing some of the laser light to be transmitted (continuing to propagate forward to the target scene), while simultaneously reflecting other wavelengths of light reflected back from the target (in green in the figure) to the receiving optical path. After the transmitted laser illuminates the target scene on the right, its reflected or scattered light, carrying information, passes through the zoom lens again, is reflected by the beam splitter, and converges onto a photodetector. The photodetector converts the optical signal into an electrical signal for processing. Throughout the process, the zoom lens dynamically optimizes the focal length of the optical path, ensuring the collimation of the emitted beam and the convergence efficiency of the received light. The beam splitter separates the common aperture of the emission and receiving optical paths, thus achieving omnidirectional optical communication without the need for mechanical scanning. Its core principle relies on the wavelength selectivity of the beam splitter and the adaptive focusing of the zoom lens to simultaneously complete signal transmission, spatial transmission, and reception detection, achieving a highly integrated and blind-zone-free communication effect.

[0041] In a preferred embodiment, this application also provides an electronic device, the electronic device comprising: The computer device includes a memory and a processor, wherein the memory stores computer-readable instructions that, when executed by the processor, implement the all-optical communication method based on a bundled fiber optic sphere. This computer device can be broadly categorized as a server, terminal, or any other electronic device with the necessary computing and / or processing capabilities. In one embodiment, the computer device may include a processor, memory, network interface, communication interface, etc., connected via a system bus. The processor of the computer device can be used to provide the necessary computing, processing, and / or control capabilities. The memory of the computer device may include a non-volatile storage medium and internal memory. The non-volatile storage medium may store an operating system, computer programs, etc. The internal memory can provide an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface and communication interface of the computer device can be used to connect and communicate with external devices via a network. When the computer program is executed by the processor, it performs the steps of the method of the present invention.

[0042] This invention can be implemented as a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, causes the steps of the methods of embodiments of the invention to be performed. In one embodiment, the computer program is distributed across multiple network-coupled computer devices or processors, such that the computer program is stored, accessed, and executed in a distributed manner by one or more computer devices or processors. A single method step / operation, or two or more method steps / operations, may be executed by a single computer device or processor or by two or more computer devices or processors. One or more method steps / operations may be executed by one or more computer devices or processors, and one or more other method steps / operations may be executed by one or more other computer devices or processors. One or more computer devices or processors may execute a single method step / operation, or execute two or more method steps / operations.

[0043] Those skilled in the art will understand that the method steps of this invention can be performed by a computer program instructing related hardware, such as a computer device or processor, to perform the steps of this invention when executed. Depending on the context, any references herein to memory, storage, databases, or other media may include non-volatile and / or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid-state drive, etc. Examples of volatile memory include random access memory (RAM), external cache memory, etc.

[0044] The technical features described above can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification, provided that such combination does not contain contradictions.

[0045] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An all-optical communication method based on a cluster fiber sphere, characterized by, Comprising: S100, emitting light signals through emitting fibers of a bundled fiber sphere; S200, receiving light signals through receiving fibers of the bundled fiber sphere; Wherein, the bundled fiber sphere has a hemispherical end face, and the emitting fibers and the receiving fibers are uniformly distributed on the hemispherical end face.

2. The all-optical communication method of claim 1, wherein, Further comprising: Adjusting the focal length of the light signals using a zoom lens group to optimize the emission and reception of the light signals.

3. The all-optical communication method of claim 2, wherein, The focal length adjustment step of the zoom lens group comprises: Based on the communication distance and the azimuth, dynamically adjusting the focal length of the zoom lens group to collimate or focus the emitted light signals and to converge the received light signals to the hemispherical end face.

4. The all-optical communication method of claim 3, wherein, Further comprising: Using a beam splitter to separate the optical path, wherein the beam splitter has semi-reflective and semi-transmissive properties for first wavelength light signals and high reflective properties for second wavelength light signals.

5. The all-optical communication method of claim 4, wherein, The first wavelength includes the infrared waveband, and the second wavelength includes the visible light waveband.

6. The all-optical communication method of claim 1, wherein, The distribution pattern of the emitting fibers and the receiving fibers on the hemispherical end face is hexagonal close packing or random uniform distribution.

7. The all-optical communication method of claim 1, wherein, The light signals are generated by a laser and coupled to the emitting fibers through optical fibers.

8. The all-optical communication method of claim 7, wherein, The laser emits modulated laser signals in the infrared waveband.

9. The all-optical communication method of claim 1, wherein, The light signals conducted by the receiving fibers are converted into electrical signals by a photodetector for processing.

10. An all-optical communication device based on a cluster fiber sphere, characterized in that, Comprising: A bundled fiber sphere having a hemispherical end face, the hemispherical end face being provided with uniformly distributed emitting fibers and receiving fibers; A laser emitting unit optically coupled to the emitting fibers for emitting light signals; A signal receiving unit optically coupled to the receiving fibers for receiving light signals; A zoom lens group arranged in front of the optical path of the hemispherical end face of the bundled fiber sphere for adjusting the focal length of the light signals; A beam splitter arranged between the zoom lens group and the bundled fiber sphere, the beam splitter being configured to be semi-reflective and semi-transmissive for first wavelength light signals and highly reflective for second wavelength light signals.

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