High-speed and high-security optical module fiber array

Abstract

The present invention relates to the field of optical fiber technology, and more particularly to a high-speed and high-security optical module fiber array. It includes: an optical transceiver module, a signal duplicator, an optical fiber transmission array, an optical switching device, an optical burst switching device, and an encryption and decryption device; the optical transceiver module includes: an optical transmitter and a plurality of optical detectors; the optical fiber transmission array includes: an optical fiber connector, an optical fiber array, a wavelength division multiplexer, and a demultiplexer; the optical transmitter converts an electrical signal group into an optical signal group; the signal duplicator duplicates the optical signal group to obtain a plurality of identical optical signal groups equal to the number of optical fibers in the optical fiber array, and then sends all the optical signal groups to the wavelength division multiplexer through a signal connector. The present invention realizes an efficient optical fiber perturbation detection and encryption method. This method not only improves the security and reliability of the optical communication system, but also significantly enhances the real-time performance of the system, and is particularly suitable for the military communication field with high security and high reliability requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical fibers, and particularly relates to a fiber optic array for high-speed and high-security optical modules. Background Art

[0002] Optical communication technology, as one of the core technologies for modern information transmission, is widely used in various high-speed data transmission networks, including Internet backbone networks, metropolitan area networks, local area networks, and military communication networks, etc. With the advent of the information age and the continuous increase in data transmission volume, higher requirements are put forward for the transmission rate, reliability, and security of optical communication systems. Especially in the military field, the reliability and security of communication are of crucial importance. Therefore, the research on fiber optic perturbation detection and encryption technology in optical communication systems is of great significance.

[0003] Traditional optical communication systems usually rely on fixed encryption mechanisms to ensure the security of data transmission. These encryption technologies mainly include encrypting optical signals to prevent data from being intercepted or tampered with during transmission. However, this fixed encryption mechanism has certain limitations. Even in the absence of external interference, optical signals need to be encrypted. This not only increases the computational burden and latency of the system, affecting the real-time performance of data transmission, but also may cause unnecessary resource waste in some cases.

[0004] Some methods in the prior art have attempted to solve these problems. For example, by adopting a dynamic encryption strategy, the encryption algorithm and encryption intensity are adjusted in real time according to changes in the external environment. However, these methods usually rely on network-level detection and adjustment and cannot perform real-time monitoring and response to physical perturbations in optical fibers. At the same time, the reliability and adaptability of these methods in military applications are still limited and it is difficult to meet the high-security and high-reliability requirements in complex battlefield environments. Summary of the Invention

[0005] The main object of the present invention is to provide a fiber optic array for high-speed and high-security optical modules, and the present invention realizes an efficient method for fiber optic perturbation detection and encryption. This method not only improves the security and reliability of optical communication systems, but also significantly enhances the real-time performance of the system, and is particularly suitable for the military communication field with high-security and high-reliability requirements.

[0006] To solve the above problems, the technical solution of the present invention is realized as follows:

[0007] High-speed and high-security optical module fiber array, which includes: an optical transceiver module, a signal replicator, an optical fiber transmission array, an optical switching device, an optical burst switching device, and an encryption and decryption device; the optical transceiver module includes: an optical transmitter and a plurality of optical detectors; the optical fiber transmission array includes: an optical fiber connector, an optical fiber array, a wavelength division multiplexer, and a demultiplexer; the optical transmitter converts an electrical signal group into an optical signal group; the signal replicator replicates the optical signal group to obtain a plurality of identical optical signal groups equal to the number of optical fibers in the optical fiber array, and then sends all the optical signal groups to the wavelength division multiplexer through a signal connector; the wavelength division multiplexer combines each optical signal in each optical signal group into a multiplexed optical signal according to the rule that each optical signal group corresponds to one optical fiber in the optical fiber array, and distributes it to the corresponding optical fiber; the encryption and decryption device includes: an encryption device and a plurality of decryption devices; each decryption device corresponds to one optical detector; after the multiplexed optical signal is distributed to the corresponding optical fiber, the encryption device encrypts the multiplexed optical signal using a preset encryption algorithm, and then the multiplexed optical signal starts to be transmitted; after the optical detector receives the multiplexed optical signal, it uses its own decryption device to decrypt it using a preset decryption algorithm, and then uses the demultiplexer to perform demultiplexing operation on the multiplexed optical signal; the optical switching device routes the multiplexed optical signal transmitted in the optical fiber array to different optical detectors; regarding each optical detector and each optical switching device as a node, the optical burst switching device monitors the characteristics of the multiplexed optical signals of each node in each time period in real time, and performs monitoring and transmission of data bursts.

[0008] Further, the characteristics of the multiplexed optical signal include: frequency, wavelength, amplitude, and power.

[0009] Further, after the optical burst switching device regards each optical detector and each optical switching device as a node, according to the historical traffic characteristics of each node, each node is divided into an edge node and a core node; the historical traffic characteristics include: bandwidth, throughput, latency, jitter, bit error rate, and signal-to-noise ratio; the optical burst switching device aggregates all the multiplexed optical signals of each node in each time according to a predetermined strategy into a data burst, generates a control packet for each data burst, and sends the control packet to the core node a set period of time before the data burst is generated; after receiving the control packet, the core node reserves optical path and wavelength resources for the data burst within a predetermined time period according to the burst information, and sends a control instruction to the optical switching device; the optical switching device sends the data burst to the core node that sent the control command according to the reserved optical path and wavelength resources; after receiving the data burst, the core node splits it into the original multiplexed optical signals and resends them.

[0010] Further, before the encryption device encrypts the multiplexed optical signal using a preset encryption algorithm, it first performs signal perturbation detection on the optical fiber. If signal perturbation exists, it encrypts the multiplexed optical signal and broadcasts a decryption instruction to each decryption device; each decryption device starts running after receiving the decryption instruction.

[0011] Further, the method for the encryption device to perform signal perturbation detection on the optical fiber includes: randomly selecting a length portion from the optical fiber as the perturbation detection path; then randomly selecting a length portion that does not coincide with the perturbation detection path and has the same length from the optical fiber as the direct detection path; preparing a quantum coherent state |α> and its corresponding superposition state |-α>, and constructing a superposition state Passing a beam of coherent state light through the optical fiber; if the optical fiber is perturbed, the influence on the coherent state is an operation operator where is the Hamiltonian operator related to the perturbation, t is the time; using an asymmetric Mach-Zehnder interferometer to divide the light beam into two paths, one path passes through the direct detection path, and the other path passes through the perturbation detection path; in the perturbation detection path, a controllable phase shift operation is added; then the first photon number at the output end of the direct detection path and the second photon number at the output end of the perturbation detection path are respectively detected; the photon number difference value is calculated; based on the photon number difference value, using Bell's inequality and the correlation characteristics of quantum states, the degree of optical fiber perturbation is calculated; if the degree of optical fiber perturbation is greater than 0, it is determined that there is perturbation in the optical fiber.

[0012] Further, through the following formula, a controllable phase shift operation is added in the perturbation detection path:

[0013]

[0014] where, is the result of the controllable phase shift operation; φ, η, and k are respectively the phase shift amount, two-photon operation coefficient, and non-linear operation coefficient; and are respectively the creation and annihilation operators of the superposition state; i is the imaginary symbol.

[0015] Further, the output state |ψ out > at the output end of the perturbation detection path is represented by the following formula:

[0016]

[0017] Using the following formula, the photon number difference value is calculated:

[0018]

[0019] Four different phase shift amounts are set, which are respectively: φ 1 、φ2 , φ 3 and φ 4 ; Obtain the results of four different controllable phase shift operations, which are respectively: and Furthermore, obtain four different photon number difference values, which are respectively: ΔN(φ 1 ), ΔN(φ 2 ), ΔN(φ 3 ), and ΔN(φ 4 ).

[0020] Further, through the following formula, based on the photon number difference value, use Bell's inequality to calculate the Bell inequality value S:

[0021] S = |<ΔN(φ 1 )> + <ΔN(φ 2 )> - <ΔM(φ 3 )> + <ΔN(φ 4 )>|;

[0022] Use the following formula to calculate the degree of optical fiber perturbation:

[0023] δ = max(0, S - 2).

[0024] Where δ is the degree of optical fiber perturbation.

[0025] Further, the encryption device performs encryption through a symmetric encryption algorithm; the decryption device decrypts through a decryption algorithm corresponding to the symmetric encryption algorithm.

[0026] The high-speed and high-security optical module fiber array of the present invention has the following beneficial effects: First, the present invention greatly improves the sensitivity and accuracy of optical fiber perturbation detection. Traditional optical fiber perturbation detection methods usually rely on changes in optical signal intensity or spectrum, with low sensitivity and difficulty in accurately detecting tiny perturbations. The present invention utilizes quantum coherent states and quantum interference effects, and through high-precision phase shift operations and interference measurements, realizes real-time detection of tiny perturbations in optical fibers. Specifically, the system sets multiple different phase shift amounts and calculates the difference values of photon numbers under these phase shift amounts, and uses Bell's inequality to quantify the perturbation degree in the optical fiber. This method can sensitively capture tiny changes in quantum states, thereby accurately detecting perturbations in optical fibers and improving the sensitivity and accuracy of detection. Second, the present invention significantly improves the real-time performance and efficiency of data transmission. In traditional optical communication systems, whether there are external perturbations or not, optical signals need to be encrypted, which not only increases the computational burden and delay of the system, but also may cause unnecessary resource waste. The present invention performs interference detection before encryption. When significant perturbations are detected in the optical fiber, the encryption mechanism is activated; when no perturbations are detected, no encryption processing is performed. In this way, unnecessary encryption is avoided, significantly improving the real-time performance and efficiency of data transmission, ensuring that the system can respond quickly when actually needed, and improving the overall transmission performance. Third, the present invention has significant advantages in ensuring data security. By calculating the value of Bell's inequality, it can be determined whether there are quantum correlations or perturbations in the optical fiber, and thus decide whether to perform encryption processing. When the value of Bell's inequality exceeds a certain threshold, the system determines that there are significant perturbations in the optical fiber and immediately activates the encryption mechanism to encrypt the optical signal to ensure the security of data transmission. This dynamic encryption strategy based on real-time detection can effectively prevent external eavesdropping and interference behaviors, ensuring the confidentiality and integrity of data, and is particularly suitable for communication scenarios with extremely high security requirements, such as military communications. Fourth, the optical burst switching device of the present invention plays an important role in improving the reliability of the system. The optical burst switching device can dynamically adjust the transmission strategy by real-time monitoring the optical signal characteristics of each node, ensuring the efficient operation of the system in the case of data bursts. Specifically, the optical burst switching device regards each optical detector and optical switching device as a node, divides them into edge nodes and core nodes according to the historical traffic characteristics of each node, and monitors the multiplexed optical signal characteristics of these nodes in each time period. In this way, the system can timely adjust the transmission path and resource allocation when detecting data bursts, ensuring that data can be transmitted to the target node quickly and efficiently, and improving the overall reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. is a schematic structural diagram of the high-speed and high-security optical module fiber array provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] The following will be described in detail respectively.

[0030] Embodiment 1: Refer to Figure 1 , a high-speed and high-security optical module fiber array, which includes: an optical transceiver module, a signal replicator, an optical fiber transmission array, an optical switching device, an optical burst switching device, and an encryption and decryption device; the optical transceiver module includes: an optical transmitter and a plurality of optical detectors; the optical fiber transmission array includes: an optical fiber connector, an optical fiber array, a wavelength division multiplexer, and a demultiplexer; the optical transmitter converts an electrical signal group into an optical signal group; the signal replicator replicates the optical signal group to obtain a plurality of identical optical signal groups equal to the number of optical fibers in the optical fiber array, and then sends all the optical signal groups to the wavelength division multiplexer through a signal connector; the wavelength division multiplexer combines each optical signal in each optical signal group into a multiplexed optical signal according to the rule that each optical signal group corresponds to one optical fiber in the optical fiber array, and distributes it to the corresponding optical fiber; the encryption and decryption device includes: an encryption device and a plurality of decryption devices; each decryption device corresponds to one optical detector; after the multiplexed optical signal is distributed to the corresponding optical fiber, the encryption device encrypts the multiplexed optical signal using a preset encryption algorithm, and then the multiplexed optical signal starts to be transmitted; after the optical detector receives the multiplexed optical signal, it uses its own decryption device to decrypt it using a preset decryption algorithm, and then uses the demultiplexer to perform a demultiplexing operation on the multiplexed optical signal; the optical switching device routes the multiplexed optical signal transmitted in the optical fiber array to different optical detectors; regarding each optical detector and each optical switching device as a node, the optical burst switching device monitors the characteristics of the multiplexed optical signals of each node in each time period in real time, and performs monitoring and transmission of data bursts.

[0031] Specifically, the optical transceiver module includes an optical transmitter and multiple optical detectors. These two sub-components work together to ensure the efficient conversion of signals between electrical and optical forms. The main principle of the optical transmitter is to convert the input electrical signal group into an optical signal group. This conversion process utilizes semiconductor lasers or light-emitting diodes (LEDs) as light sources. When an electrical signal is applied to these light sources, they emit light of corresponding wavelengths. Semiconductor lasers have the characteristics of high efficiency, fast response, and narrow emission spectral lines, and thus are widely used in high-speed optical communication. The design of the optical transmitter needs to consider wavelength stability and modulation speed to ensure that the converted optical signal can maintain high fidelity and stability during transmission. The main function of the optical detector is to receive the optical signal transmitted from the fiber optic transmission array and convert it back into an electrical signal. Optical detectors usually use photodiodes or avalanche photodiodes. These devices can convert photon energy into current or voltage signals, thereby achieving optoelectronic conversion. When photons are incident on a photodiode, electron-hole pairs are generated, resulting in current flow and thus generating an electrical signal. The avalanche photodiode adds a gain mechanism on this basis. By accelerating electrons through an internal electric field, an avalanche multiplication effect is caused, greatly improving the optoelectronic conversion efficiency and sensitivity. This enables the optical detector to maintain high-efficiency signal conversion ability even under weak light conditions. The design of the optical transceiver module also needs to consider the suppression of noise and interference. Since optical signals may be affected by various interference factors during transmission, such as dispersion, nonlinear effects, and changes in the external environment, the optical transceiver module must have a certain anti-interference ability. For this reason, filter and amplifier circuits are usually introduced in the design to optimize signal quality and stability. The filter circuit can effectively suppress high-frequency noise and stray signals in the signal, while the amplifier circuit can increase the signal strength to ensure that the signal can still be accurately received and recognized after long-distance transmission. In addition, the optical transceiver module needs to implement parallel processing of multiple signals. Since multiple signals may be transmitted simultaneously in the fiber optic transmission array, the optical transceiver module needs to be able to process these signals simultaneously to ensure that they do not interfere with each other. For this reason, the optical transceiver module usually adopts a multi-channel design, with each channel independently processing one optical signal, thereby achieving efficient parallel processing of multiple signals. This design not only improves the processing ability and transmission rate of the system, but also enhances the flexibility and scalability of the system, enabling the optical transceiver module to adapt to different application requirements.

[0032] The working principle of the signal duplicator is mainly based on optical splitting technology and signal amplification technology to ensure that each duplicated optical signal group can maintain the integrity and intensity of the original signal. The signal duplicator first receives the optical signals output by the optical transmitter, and these signals are transmitted through optical fibers to the input end of the duplicator. At the input end, the optical signals enter an optical splitter, which is a passive optical device that can split a single optical signal into multiple optical signals with equal power. The optical splitter is usually designed using optical waveguide technology. Through a specific geometric structure and materials, the input optical signal is split into multiple sub-signals in the splitter. The intensity of each sub-signal is equal to that of the input signal, ensuring energy conservation during the signal duplication process. However, the optical splitter will introduce a certain insertion loss during the splitting process, which means that the power of each sub-signal may decrease. To solve this problem, the signal duplicator usually configures a group of optical amplifiers after the splitter. These optical amplifiers use technologies such as erbium-doped fiber amplifiers (EDFAs) or semiconductor optical amplifiers (SOAs). By amplifying the optical signals, they compensate for the power loss during the splitting process to ensure that each duplicated optical signal group has sufficient intensity. The erbium-doped fiber amplifier utilizes the erbium-doped fiber to gain energy for the transmitted optical signal under the excitation of 980nm or 1480nm pump light. The amplified optical signal has a high signal-to-noise ratio and stability. The semiconductor optical amplifier, on the other hand, realizes the amplification of optical signals by directly driving the semiconductor gain medium with an electric current and has the advantages of small size and easy integration. In the signal duplicator, each amplified optical signal group will be output through an optical fiber connector and enter each optical fiber channel in the optical fiber transmission array. To ensure that the duplicated optical signal groups can be transmitted synchronously, the design of the signal duplicator also needs to consider the phase and time delay problems of the signals. Through precise optical path design and control technology, the signal duplicator can ensure that each duplicated signal group is consistent in time and phase, thus avoiding signal distortion and interference in subsequent transmission and processing. In addition, the signal duplicator also needs to have a certain anti-interference ability to cope with the influence of external environmental changes on optical signals. For this reason, shielding and isolation technologies are usually adopted inside the duplicator to reduce the influence of electromagnetic interference and temperature changes on the optical signal duplication process. At the same time, the optical amplifiers in the duplicator also need to have an automatic gain control (AGC) function to automatically adjust the amplification factor according to the change of the input signal to ensure the stability of the output signal.

[0033] In the military field, communication systems often need to process a large amount of bursty data streams, such as battlefield situation images, video streams, sensor data, and command and control information. These data usually have the characteristics of suddenness and high bandwidth requirements, and traditional communication methods are difficult to meet the requirements of real-time and efficient transmission. Optical burst switching devices can dynamically adjust the transmission strategy by monitoring the optical signal characteristics of each node in real time, ensuring efficient transmission in the case of data bursts. Optical burst switching devices first use high-precision optical sensors and optical detectors to monitor parameters such as the optical signal intensity, wavelength, phase, and frequency of each node in real time. These optical parameters reflect the signal quality and transmission status. By analyzing these parameters, optical burst switching devices can determine whether there is a data burst situation and the severity of the burst. In military communication systems, data bursts may be triggered by battlefield emergencies, such as enemy attacks, fighter takeoffs, or missile launches. These situations require the system to be able to respond quickly and ensure the timely transmission of information. After detecting a data burst situation, the optical burst switching device will immediately activate the preset emergency handling mechanism. First of all, it will give priority to allocating bandwidth resources to ensure that bursty data can be transmitted quickly. Through dynamic bandwidth management technology, the device can temporarily adjust the bandwidth allocation of each optical fiber channel. For example, it can temporarily increase the transmission rate of some key channels to meet the needs of emergency data transmission. This process relies on advanced optical routing technology and intelligent scheduling algorithms to ensure the optimal utilization of system resources. At the same time, the optical burst switching device will also sort the data by priority, determining the transmission order according to the importance and urgency of the data. In military applications, command and control information, battlefield monitoring data, and emergency instructions usually have the highest priority, and these data must be transmitted to the target node within the shortest time. Through intelligent sorting algorithms, the device can dynamically adjust the data queue to ensure that high-priority data is transmitted first without affecting the transmission quality of other regular data. In addition, optical burst switching devices also have anti-interference and fault-tolerant functions. In the battlefield environment, electromagnetic interference, physical damage, and network attacks may all affect the transmission quality of optical signals. The device ensures efficient and stable communication in complex environments through multiple anti-interference measures, such as fiber redundancy design, signal filtering, and error correction. Especially the fiber redundancy design, through the backup and switching of multiple optical fiber channels, can quickly switch to the backup channel when the main channel is damaged or the signal is interrupted, ensuring that communication is not interrupted. In practical applications, optical burst switching devices can also be seamlessly integrated with other military communication devices and network systems to form a comprehensive and intelligent communication network. For example, the device can be interconnected with satellite communication systems, ground radar systems, and UAV data link systems to achieve the integrated transmission and processing of multi-source information. This integration ability greatly enhances the flexibility and adaptability of military communication systems and can cope with various complex and changing battlefield environments.In summary, through high-precision monitoring, dynamic bandwidth management, priority sorting, encryption protection, and anti-interference technologies, the optical burst switching device ensures the efficient and stable operation of the high-speed and high-security optical module fiber array under data burst conditions. Its application in the military field has significantly improved the response speed, confidentiality, and reliability of communication systems, providing solid technical support for information-based operations in modern battlefields. Through the application of these advanced technologies, military communication systems can quickly transmit important information at critical moments, ensuring the timeliness and effectiveness of command decisions and laying the foundation for battlefield victory.

[0034] Embodiment 2: The characteristics of the multiplexed optical signal include: frequency, wavelength, amplitude, and power.

[0035] Specifically, the principle of Embodiment 2 lies in achieving efficient and reliable optical signal transmission by multiplexing the characteristics of optical signals, including frequency, wavelength, amplitude, and power, and combining the real-time monitoring and management of optical burst switching devices to ensure the stable operation of the system under data burst conditions. The optical signal multiplexing technology combines multiple optical signals with different wavelengths into a multiplexed signal for transmission, thereby improving the utilization efficiency and transmission capacity of optical fibers. In this process, the optical burst switching device plays a key role. It monitors the characteristics of the multiplexed optical signals at each node in real time for each time period to ensure that the system can dynamically adjust and optimize the transmission strategy. The optical burst switching device uses high-precision optical sensors and detectors to monitor parameters such as the frequency, wavelength, amplitude, and power of the multiplexed optical signals in real time. These parameters reflect the quality and transmission status of the optical signals. By analyzing this data, the device can determine whether there is a data burst situation and adjust the transmission strategy accordingly. For the monitoring of frequency and wavelength, the optical burst switching device can ensure that signals with different wavelengths do not interfere with each other, thus achieving efficient wavelength division multiplexing. For the monitoring of amplitude and power, the device can dynamically adjust the gain of the optical amplifier to ensure that the signal maintains a stable intensity and quality during transmission. When the optical burst switching device detects a data burst situation, such as an urgent information transmission requirement on the battlefield, it will immediately activate the emergency handling mechanism. The device will preferentially allocate bandwidth resources to ensure that the burst data can be transmitted quickly. At the same time, according to the importance and urgency of the data, it will perform priority sorting to ensure the priority transmission of critical data. This dynamic bandwidth management and priority scheduling mechanism enables the system to still operate efficiently when dealing with large-capacity data bursts, ensuring the timely transmission of important information. In addition, the optical burst switching device also has strong anti-interference and fault tolerance capabilities. Through multiple anti-interference measures, such as signal filtering, fiber redundancy design, and error correction, the device can maintain efficient and stable communication in a complex environment. In military applications, this ability is particularly important because the battlefield environment is complex and changeable, and signals are easily interfered with. The optical burst switching device ensures high-quality transmission of multiplexed optical signals under any circumstances through real-time monitoring and dynamic adjustment, thus meeting the requirements of modern military communication for high speed and high security.

[0036] Embodiment 3: After the optical burst switching device regards each optical detector and each optical switching device as a node, according to the historical traffic characteristics of each node, each node is divided into an edge node and a core node; the historical traffic characteristics include: bandwidth, throughput, latency, jitter, bit error rate, and signal-to-noise ratio; the optical burst switching device aggregates all multiplexed optical signals of each node within each time according to a predetermined strategy into a data burst, generates a control packet for each data burst, and sends the control packet to the core node a set period of time before the data burst is generated. After receiving the control packet, the core node reserves an optical path and wavelength resources for the data burst within a predetermined time period according to the burst information, and sends a control instruction to the optical switching device; the optical switching device sends the data burst to the core node that sends the control command according to the reserved optical path and wavelength resources; after receiving the data burst, the core node splits it into the original multiplexed optical signals and resends them.

[0037] Specifically, the optical burst switching device in Embodiment 3 realizes efficient and reliable data burst monitoring and transmission by comprehensively utilizing historical traffic characteristics and real-time monitoring technology. Its core idea is to regard each optical detector and optical switching device as an independent node, and divide the nodes into edge nodes and core nodes according to the historical traffic characteristics of each node, so as to optimize resource allocation and transmission paths. The historical traffic characteristics include bandwidth, throughput, latency, jitter, bit error rate, and signal-to-noise ratio, and these metrics reflect the performance and load conditions of each node over a past period of time. By analyzing this data, the optical burst switching device can identify which nodes are core nodes with high load and critical tasks, and which are relatively low-load edge nodes. Against this backdrop, the optical burst switching device monitors and analyzes the multiplexed optical signals of each node within each time period. The characteristics of these multiplexed optical signals, including frequency, wavelength, amplitude, and power, determine the transmission quality and stability of the signal. By real-time monitoring of these characteristics, the device can determine whether a data burst situation exists and aggregate the signals according to a predetermined strategy. The occurrence of a data burst is usually accompanied by a large number of high-priority data transmission requirements, such as battlefield situation images, video streams, sensor data, and command and control information, etc. These data require efficient transmission within a short time to support rapid decision-making and response. When the optical burst switching device detects a data burst situation, it immediately activates the data aggregation mechanism to merge multiple multiplexed optical signals into a data burst. A control packet is generated for each data burst, and the control packet contains detailed information about the data burst, such as optical path requirements, wavelength requirements, and transmission time, etc. This information is sent to the core node in advance to ensure that it has enough time to reserve the necessary transmission resources. After receiving the control packet, the core node reserves an optical path and wavelength resources within a predetermined time period according to the burst information to ensure the smooth transmission of the data burst.

[0038] The resource reservation operation of the core node is a crucial link for the efficient operation of the entire system. By reserving optical path and wavelength resources, the core node ensures that data bursts do not conflict or become congested during transmission. This pre-planning and dynamic scheduling mechanism not only improves the transmission efficiency but also significantly enhances the reliability of the system. After completing the resource reservation, the core node sends control instructions to the optical switching device, instructing it to transmit data bursts according to the predetermined optical path and wavelength resources within a specified time period. After receiving the instructions, the optical switching device conducts data transmission based on the predetermined optical path and wavelength resources. This step ensures that data bursts can maintain high efficiency and stability throughout the transmission link. The dynamic scheduling and intelligent management of the optical switching device enable the system to still operate efficiently when dealing with large-capacity data bursts, ensuring that important information can be timely transmitted to the target node. After the data burst is transmitted to the core node, the core node splits the data into the original multiplexed optical signals and re-transmits them to the target node according to the established transmission path. This process of splitting and re-transmitting requires the core node to have efficient demultiplexing and signal processing capabilities. Through optical demultiplexing technology, the core node can restore the multiplexed signals into independent optical signals, ensuring the quality and integrity of each signal. In military applications, this technology is particularly important. The battlefield communication system needs to process a large amount of bursty data, which usually has the characteristics of suddenness and high bandwidth requirements. The intelligent management and dynamic resource scheduling of the optical burst switching device ensure that the system can quickly respond during data bursts, guaranteeing the timely and reliable transmission of critical data. For example, on the battlefield, when emergencies such as enemy attacks, fighter takeoffs, or missile launches occur, the system can quickly transmit high-priority command and control information, battlefield surveillance videos, and sensor data to the command center, supporting decision-makers to make timely and effective decisions in the complex and changing battlefield environment. The optical burst switching device also has strong anti-interference and fault-tolerant capabilities. Through multiple anti-interference measures, such as signal filtering, fiber redundancy design, and error correction, the device can maintain efficient and stable communication in complex environments. In the battlefield environment, factors such as electromagnetic interference, physical damage, and network attacks may affect the transmission quality of optical signals. The optical burst switching device ensures that the multiplexed optical signals can maintain high-quality transmission under any circumstances through real-time monitoring and dynamic adjustment, thus meeting the requirements of modern military communication for high speed and high security. In addition, the seamless integration of the optical burst switching device with other military communication devices and network systems makes the entire communication system more flexible and efficient. The device can be interconnected with satellite communication systems, ground radar systems, and unmanned aerial vehicle data link systems to achieve the integrated transmission and processing of multi-source information. This comprehensive and intelligent communication network greatly enhances the adaptability and flexibility of the military communication system and can cope with various complex and changing battlefield environments. Generally speaking, Example 3 realizes efficient data burst monitoring and transmission through the intelligent management of nodes and the analysis of historical traffic characteristics by the optical burst switching device.Pre-generating control packets and making resource reservations ensure the stability and reliability of data transmission. This technology provides strong technical support in military communications and meets the requirements for high-speed and highly reliable data transmission in modern battlefields.

[0039] Example 4: Before the encryption device encrypts the multiplexed optical signal using a preset encryption algorithm, it first performs signal perturbation detection on the optical fiber. If signal perturbation exists, the multiplexed optical signal is encrypted and a decryption instruction is broadcast to each decryption device; each decryption device starts running after receiving the decryption instruction.

[0040] Specifically, fiber optic signal perturbation detection utilizes advanced optical sensing technologies to monitor minute changes in the fiber optic transmission path. These changes may include fluctuations in optical signal intensity, phase shifts, or other anomalies, all of which are indicators of potential signal perturbations. When a signal perturbation is detected, the encryption device immediately activates a preset encryption algorithm to encrypt the multiplexed optical signal. The encryption process uses the Advanced Encryption Standard (AES) or other military-grade encryption algorithms to ensure the high security of the signal during transmission. The encrypted optical signal is transmitted through the optical fiber, and any attempt to eavesdrop on or interfere with the signal will not be able to obtain valid information, thus safeguarding the confidentiality and integrity of the data. Meanwhile, the encryption device generates decryption instructions and broadcasts them to each decryption device. The decryption instructions contain necessary information such as the encryption key, decryption algorithm parameters, and decryption time window, etc., to ensure that each decryption device can correctly decrypt the encrypted signal when it is received. The purpose of broadcasting the decryption instructions is to ensure that all decryption devices obtain the decryption key and related information at the same time, so as to perform the decryption operation synchronously and avoid any delays or decryption failures. After receiving the decryption instructions, each decryption device immediately starts running the decryption program. The decryption device is built-in with a decryption algorithm that matches the encryption device, and through the key and parameters provided by the decryption instructions, it accurately restores the optical signal before encryption. This process requires highly accurate computing power and a fast-response decryption algorithm to ensure that the signal can be decrypted in a timely manner at the transmission end for use by the receiving end. This process in Embodiment 4 is particularly crucial in military communications. Military communications need to ensure the absolute security and reliability of data during transmission. Any signal perturbation may represent an eavesdropping or interference behavior by the enemy. Therefore, signal perturbation detection and encryption processing have become important measures to ensure communication security. By performing real-time monitoring and encryption processing on the multiplexed optical signal, the system can maintain efficient and reliable communication in a complex battlefield environment. In addition, broadcasting the decryption instructions ensures that all decryption devices can perform the decryption operation synchronously, avoiding any delays or incorrect decryptions in signal transmission. Such a design not only ensures data security but also enhances the stability and reliability of the system. Especially in a battlefield environment, the timeliness and accuracy of information transmission have a direct impact on combat command and decision-making. Embodiment 4 significantly improves the protection ability of the system by introducing a signal perturbation detection and encryption processing mechanism, ensuring that data can still be transmitted securely in the event of enemy interference or eavesdropping.

[0041] Embodiment 5: The method for the encryption device to detect signal perturbations in an optical fiber includes: randomly selecting a section of length from the optical fiber as the perturbation detection path; then randomly selecting another section of length from the optical fiber that does not overlap with the perturbation detection path and has the same length as a direct detection path; preparing a quantum coherent state |α> and its corresponding superposition state |-α>, and constructing a superposition state Passing a beam of coherent state light through the optical fiber; if the optical fiber is perturbed, the influence on the coherent state is an operation operator wherein is the Hamiltonian operator related to the perturbation, and t is the time; using an asymmetric Mach-Zehnder interferometer, the light beam is divided into two paths, one path passes through the direct detection path, and the other path passes through the perturbation detection path; in the perturbation detection path, a controllable phase shift operation is added; then the number of first photons at the output end of the direct detection path and the number of second photons at the output end of the perturbation detection path are respectively detected; the photon number difference value is calculated; based on the photon number difference value, using Bell's inequality and the correlation characteristics of the quantum state, the degree of optical fiber perturbation is calculated; if the degree of optical fiber perturbation is greater than 0, it is determined that there is a perturbation in the optical fiber.

[0042] Specifically, the method first randomly selects a section of a certain length from the optical fiber as the perturbation detection path, and at the same time randomly selects another section from the optical fiber that does not coincide with the perturbation detection path and has the same length as the direct detection path. These two paths are respectively used to detect potential perturbations in the optical fiber and for baseline comparison. Next, a quantum coherent state and its corresponding superposition state are prepared to construct an initial quantum superposition state. This quantum superposition state is used as the initial light beam and transmitted through the optical fiber. If the optical fiber is perturbed, the quantum coherent state will be affected, and this effect can be represented by a specific quantum operation operator, reflecting the influence of the perturbation in the optical fiber on the quantum state. To detect these changes, the system uses an asymmetric Mach-Zehnder interferometer to split the light beam into two paths: one path passes through the direct detection path, and the other path passes through the perturbation detection path. In the perturbation detection path, a controllable phase shift operation is also added to simulate or enhance the perturbation effect in the optical fiber. At the output end of the interferometer, the photon numbers of the direct detection path and the perturbation detection path are respectively detected. By calculating the difference value of the photon numbers of the two paths, specific information about the optical fiber perturbation can be obtained. The difference value of the photon numbers reflects the change in the quantum coherent state caused by the perturbation. The superposition and interference characteristics of the quantum state make this detection method have extremely high sensitivity. The quantum coherent state will change significantly when affected by external perturbations, and these changes can be detected and analyzed by precise quantum measurement techniques. The system can capture tiny perturbations in the optical fiber by utilizing the correlation characteristics between quantum states, especially the unique performance of the quantum superposition state during the interference process, thereby realizing high-precision monitoring of the optical fiber state. In an optical communication system, perturbations in the optical fiber may be caused by various factors, including mechanical vibration, temperature change, and electromagnetic interference, etc. These perturbations will affect the transmission quality of the optical signal, and further affect the reliability and security of communication. Through the quantum coherent state and quantum interference technology, real-time monitoring of tiny perturbations in the optical fiber can be achieved, so that corresponding encryption measures can be taken immediately when the perturbation occurs to ensure the security of data transmission. In the military field, this high-precision perturbation detection technology is particularly important. Military communication systems have extremely high requirements for the confidentiality and reliability of data transmission, and any external interference or eavesdropping may lead to serious consequences. Through the method in Example 5, the system can quickly detect and respond when the optical fiber is perturbed, ensuring the data security during the communication process. Especially in the battlefield environment, the real-time monitoring and rapid response capabilities are the keys to ensuring the stable operation of the communication system. Generally speaking, Example 5 uses the quantum coherent state and quantum interference technology to perform high-precision detection of signal perturbations in the optical fiber. This method utilizes the unique advantages of quantum mechanics to realize real-time monitoring and quantitative analysis of optical fiber perturbations. In optical communication and military applications, this technology provides highly reliable security guarantees to ensure the integrity and confidentiality of data transmission.Through this innovative detection method, the optical communication system can still maintain efficient and stable operation in a complex and frequently interfered environment, providing important support for the development of modern information technology.

[0043] Example 6: Through the following formula, a controllable phase shift operation is added to the perturbation detection path:

[0044]

[0045] where is the result of the controllable phase shift operation; φ, η, and κ are the phase shift amount, two-photon operation coefficient, and nonlinear operation coefficient, respectively; and are the creation and annihilation operators of the superposition state, respectively; i is the imaginary symbol.

[0046] Specifically, the phase shift part involves the basic phase modulation of quantum states. The phase shift operation changes the phase of photons, and this change is crucial for interference detection. By controlling the phase shift amount, the phase of the optical signal can be precisely adjusted, thereby introducing specific phase differences in the interferometer and enhancing the sensitivity to minute perturbations. This process is described by creation and annihilation operators. The creation operator adds a photon, and the annihilation operator subtracts a photon. The combination of the two realizes the phase adjustment of the optical field. Secondly, the two-photon operation part involves more complex coherent state modulation. It affects the quantum state by creating and annihilating two photons. This operation introduces non-classical effects, making the quantum state more sensitive to external perturbations. The introduction of the two-photon operation enables the system to detect more subtle phase changes because this operation increases the coherence and entanglement of the quantum state, improving the resolution and precision of interference detection. Finally, the non-linear operation part is the core innovation of this operator. The non-linear operation introduces non-linear effects related to the square of the photon number by adjusting the phase change related to the photon number in the optical field. This non-linear effect makes the response of the quantum state more complex and sensitive, especially effective for detecting minute perturbations in optical fibers. The non-linear operation not only enhances the coherence of the quantum state but also introduces higher-order phase relationships, enabling the quantum interferometer to capture subtle perturbations that cannot be detected by traditional linear operations. By combining the above three operations in a unified quantum operator, Example 6 achieves precise control and adjustment of the quantum state. When the quantum state in the optical fiber is perturbed during transmission, the quantum coherent state will change significantly, and these changes can be amplified and captured through interference detection. Specifically, the quantum coherent state is split into two paths by the interferometer. One path passes through the direct detection path and remains in the original state; the other path passes through the perturbation detection path and a controllable phase shift operation is added, thereby introducing additional phase changes. At the output end, by detecting the difference in the number of photons in the two paths, specific information about the optical fiber perturbation can be obtained. This method utilizes the unique properties of quantum mechanics, especially the coherence and non-linear effects of quantum states, greatly improving the sensitivity and precision of optical fiber perturbation detection. In the military and high-security communication fields, this technology is particularly important. By precisely detecting minute perturbations in optical fibers, the security and integrity of data transmission can be ensured, preventing any external interference and eavesdropping behaviors. At the same time, this high-precision perturbation detection technology also provides important technical support for frontier fields such as quantum communication and quantum computing.

[0047] Example 7: The output state |ψ at the output end of the perturbation detection path out > is represented by the following formula:

[0048]

[0049] This formula describes the evolution of a quantum state under the action of a phase shift operation and a perturbation, involving complex quantum coherent states and interference effects. In the formula, |ψ φ > represents the quantum state obtained after the controllable phase shift operation and the perturbation. This quantum state is a superposition state composed of two parts, and each part contains the combined action of the phase shift operation and the perturbation effect. First, the basic structure of this formula is a superposition state of quantum states, that is, the superposition of two coherent states |α> and |-α>. A coherent state is a quantum state that has a Poisson distribution in the photon number representation and has good coherence and stability. Coherent states have important applications in quantum optics and quantum information processing because they exhibit behavior similar to classical electromagnetic fields in the classical limit. The first exponential term in the formula describes the action of the controllable phase shift operation. This operation consists of three parts: the phase shift amount φ, the two-photon operation coefficient η, and the nonlinear operation coefficient κ. The phase shift amount φ affects the phase of the quantum state through the operator to produce a basic phase modulation effect. The two-photon operation is described by , which involves the process of creating or annihilating two photons. This operation can introduce non-classical effects, making the quantum state more sensitive to external perturbations. The nonlinear operation describes the square relationship of the photon number. This high-order nonlinear effect can further enhance the response of the quantum state, especially for the detection of small perturbations. The second exponential term in the formula describes the influence of the perturbation on the quantum state. Here, is the Hamiltonian operator related to the perturbation, t is the time, is the reduced Planck constant. This operator represents the influence on the quantum state during its time evolution in the presence of perturbations. The Hamiltonian operator usually includes the energy of the system and the contributions of external perturbations. Through this term, the actual physical perturbations experienced by the quantum state during fiber optic transmission can be described. In the overall structure of the formula, these two exponential terms act together on the coherent states |α> and |-α>. The form of the superposition state enables the system to consider quantum states with two opposite phases simultaneously, which is very important for interferometric measurements. In an interferometer, this superposition state will lead to the formation of interference fringes. By measuring the changes in the interference fringes, tiny perturbations in the optical fiber can be sensitively detected. This combination of coherent state superposition and phase shift operations enables the quantum state to respond very sensitively to external perturbations. By controlling the phase shift amount φ and the operation coefficients η, κ, the phase and nonlinear effects of the quantum state can be precisely adjusted, thereby optimizing the sensitivity of interferometric measurements. This highly sensitive quantum measurement method is particularly effective in detecting tiny perturbations in optical fibers because the perturbations in optical fibers are usually very weak and difficult to detect with traditional measurement methods. In addition, this method also utilizes the non-classical properties of quantum states. Two-photon operations and nonlinear operations introduce higher-order quantum effects that do not exist in classical optics. Through these non-classical effects, the coherence and entanglement of the quantum state can be enhanced, thereby improving the resolution and accuracy of interferometric measurements. In practical applications, this high-precision perturbation detection technology is of great significance for optical communication and military communication. By precisely detecting tiny perturbations in optical fibers, the security and integrity of data transmission can be ensured, preventing any external interference and eavesdropping behavior.

[0050] Using the following formula, the photon number difference value is calculated as:

[0051]

[0052] This formula reflects the changes in the quantum state under phase shift operations and perturbation effects by comparing the photon numbers on two paths, thereby realizing the detection of optical fiber perturbations. In quantum optics, interferometers are usually used to measure the phase differences of quantum states. The interferometer divides the initial quantum state |ψ 0 > into two parts, which pass through different paths respectively. On one path, the quantum state will undergo a phase shift operation while the other path remains in an unperturbed state. The phase shift operation includes phase modulation and possible nonlinear and two-photon effects. These effects act together on the quantum state, causing it to change when passing through the optical fiber. Specifically, the phase shift operator acts on the quantum state through creation and annihilation operators, thereby introducing changes in the phase and other quantum effects. The first part of the formula represents the expected value of the photon number of the quantum state after the phase shift operation in Path 1. Here, and Represent the inverse operation and the forward operation of the phase shift operation respectively, which act on the initial quantum state |ψ 0 > together, and then calculate the photon number expectation value through the photon number operator . This expectation value reflects the photon number distribution of the quantum state after the phase shift operation. The second part of the formula represents the photon number expectation value of the quantum state after the phase shift operation in path 2. Similarly, the phase shift operator acts on the initial quantum state, and then the photon number expectation value is calculated. The difference between these two expectation values, that is, the photon number difference value ΔN(φ), reflects the change of the quantum state caused by the phase shift operation and external perturbations. By comparing the photon number differences on the two paths, the phase change of the quantum state and other quantum effects can be sensitively detected. This interference measurement method utilizes the superposition and coherence of the quantum state. By introducing the phase shift operation, the response of the quantum state to external perturbations is amplified. The calculation of the photon number difference value actually reflects the phase difference of the quantum state through the change of the interference fringes. This method is particularly suitable for detecting minute perturbations in optical fibers because the coherence and phase sensitivity of the quantum state enable the system to capture subtle perturbation information.

[0053] Set four different phase shift amounts, which are: φ 1 , φ 2 , φ 3 and φ 4 ; obtain the results of four different controllable phase shift operations, which are: and Furthermore, obtain four different photon number difference values, which are: ΔN(φ 1 ), ΔN(φ 2 ), ΔN(φ 3 ) and ΔN(φ 4 ).

[0054] Specifically, by setting four different phase shift amounts, the system can observe the change of the quantum state under different phase conditions. The phase shift amount φ adjusts the phase difference accumulated by photons in the interferometer, thus affecting the formation of interference fringes and the distribution of photon numbers. Each phase shift operation All of them will cause different evolutions of the quantum state along the path, enabling the system to capture the subtle changes caused by optical fiber perturbations. Specifically, after the phase shift operation, both the phase and amplitude of the quantum state will change. By comparing the difference values of the photon numbers under different phase shift amounts, a set of data can be obtained, which reflects the response of the quantum state under these phase conditions. These photon number difference values are calculated from the difference in the expected values of the photon numbers on the two paths, and the result corresponding to each phase shift amount reflects the change of the quantum state under that specific phase condition. The principle of this method lies in the quantum interference effect. A quantum interferometer can split the initial quantum state into two parts. When they recombine after passing through different paths, due to the different phase shift operations on the paths, an interference effect occurs in the recombined quantum state. The different phase shift amounts lead to phase differences in the quantum state, thus affecting the distribution of photon numbers. By detecting these changes in photon numbers, the minute perturbations of the quantum state can be sensitively captured. By setting multiple phase shift amounts and calculating the corresponding photon number difference values, a comprehensive understanding of the response of the quantum state under different phase conditions can be obtained. These data can provide detailed information about the perturbations in the optical fiber, such as the intensity and type of the perturbations. Different phase shift amounts can provide different observation angles, enabling the system to more precisely quantify and analyze the perturbations. This multi-angle detection method significantly improves the sensitivity and reliability of the system.

[0055] Example 8: Based on the photon number difference value, use the Bell inequality to calculate the Bell inequality value S through the following formula:

[0056] S = |<ΔN(φ 1 )> + <ΔN(φ 2 )> - <ΔN(φ 3 )> + <ΔN(φ 4 )>|;

[0057] Use the following formula to calculate the degree of optical fiber perturbation:

[0058] δ = max(0, S - 2).

[0059] Where δ is the degree of optical fiber perturbation.

[0060] Specifically, the core of Example 8 is to use the Bell inequality value S to detect and quantify the degree of perturbation in the optical fiber. This method is based on the Bell inequality in quantum mechanics. By calculating the difference values of the photon numbers under different phase shift amounts, the perturbation situation in the optical fiber can be determined. The Bell inequality is a mathematical tool used to test the non-locality of quantum systems. By quantifying the Bell inequality value S, it can be judged whether there are quantum correlations in the system and further detect the perturbations in the optical fiber.

[0061] Formula S = |<ΔN(φ 1 )> + <ΔN(φ 2)>-<ΔN(φ 3 )>+<ΔN(φ 4 )>| is used to calculate the value S of Bell's inequality. Here, ΔN(φ i ) is the difference value of the number of photons at different phase shift amounts φ i . To better understand this formula, it is necessary to delve into its physical background and the principles of quantum mechanics.

[0062] Bell's inequality in quantum mechanics was proposed by physicist John Bell and is used to test non-locality in quantum systems. Non-locality is one of the important characteristics of quantum mechanics, which means that there is a certain correlation between two or more parts of a quantum system that goes beyond classical physical explanations. Bell's inequality provides a method to test whether these correlations exist through experimental data. In quantum optical experiments, the calculation of the value S of Bell's inequality is achieved through the difference value of the number of photons.

[0063] In Example 8, four different phase shift amounts are set, namely v 1 , φ 2 , φ 3 and φ 4 , and the corresponding difference values of the number of photons ΔN(φ 1 ), ΔN(φ 2 ), ΔN(φ 3 ) and ΔN(φ 4 ) are calculated. These difference values of the number of photons reflect the changes of the quantum state at different phase shift amounts. The phase shift amount φ i affects the formation of interference fringes and the distribution of the number of photons by influencing the phase difference accumulated by photons in the interferometer. Each phase shift operation All of them will cause different evolutions of the quantum state along the path, enabling the system to capture the subtle changes caused by fiber optic perturbations. The calculation formula of the Bell inequality value S is obtained by performing operations on the difference values of the photon numbers under different phase shifts according to specific addition and subtraction combinations, thereby obtaining a value that reflects the quantum state correlation. If there is no perturbation or quantum correlation in the system, the value of S will not exceed a certain threshold, usually 2. However, in the presence of perturbations or quantum correlations, the value of S may exceed this threshold. When S > 2, it indicates that there are significant quantum correlations or perturbations in the system. Through this method, the calculation of the Bell inequality value S can effectively detect the tiny perturbations in the optical fiber. The response of the quantum state under different phase shifts is reflected by the change in the difference value of the photon numbers. Different phase shifts provide different observation angles, enabling the system to more accurately quantify and analyze the perturbations. This multi-angle detection method significantly improves the sensitivity and reliability of the system. In practical applications, this highly sensitive detection method is of great significance in optical communication and quantum information processing. The tiny perturbations in the optical fiber may be caused by various factors, including mechanical vibrations, temperature changes, and electromagnetic interference, etc. These perturbations will affect the transmission quality of the optical signal, and thus affect the reliability and security of communication. Through quantum interference and Bell inequality detection, real-time monitoring of these tiny perturbations can be achieved, so that corresponding encryption measures can be taken immediately when the perturbation occurs to ensure the security of data transmission. Especially in the military communication field, this technology is particularly important. Military communication systems have extremely high requirements for the confidentiality and reliability of data transmission. Any external interference or eavesdropping may lead to serious consequences. Through the method in Example 8, the system can quickly detect and respond when the optical fiber is perturbed, ensuring the data security during the communication process. The calculation and analysis of the Bell inequality value S can not only detect the non-locality in the quantum system, but also provide an accurate quantification index for the perturbations in the optical fiber. The advantage of this method lies in its high sensitivity and high precision. The coherence and phase sensitivity of the quantum state enable the system to capture very subtle perturbation information. By setting different phase shifts and calculating the difference values of the photon numbers, the perturbation situation in the optical fiber can be comprehensively analyzed and detected. This process utilizes the unique properties of quantum interference and the Bell inequality. Through the multi-angle detection method, the detection ability and reliability of the system are improved. Generally speaking, Example 8 detects the degree of perturbation in the optical fiber by calculating the Bell inequality value S. By using the non-locality principle in quantum mechanics, through the calculation and comparison of the difference values of the photon numbers under different phase shifts, the changes in the quantum state and the perturbations in the optical fiber can be sensitively captured. This method provides important technical support for the development of modern optical communication and quantum information technology, especially in the communication fields with high security and high reliability, and has broad application prospects.

[0064] Embodiment 9: The encryption device encrypts through a symmetric encryption algorithm; the decryption device decrypts through a decryption algorithm corresponding to the symmetric encryption algorithm.

[0065] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. High-speed and high-security optical module fiber array, characterized by: It includes: Optical transceiver modules, signal duplicators, fiber optic transmission arrays, optical switching equipment, optical burst switching equipment, and encryption and decryption equipment; The optical transceiver module includes: an optical transmitter and a plurality of optical detectors; the optical fiber transmission array includes: an optical fiber connector, an optical fiber array, a wavelength division multiplexer and a demultiplexer; the optical transmitter converts the electrical signal group into an optical signal group; the signal copier copies the optical signal group to obtain a plurality of identical optical signal groups equal to the number of optical fibers in the optical fiber array, and then sends all the optical signal groups to the wavelength division multiplexer through the signal connector; the wavelength division multiplexer, according to the rule that each optical signal group corresponds to an optical fiber in the optical fiber array, combines each optical signal in each optical signal group into a multiplexed optical signal and distributes it to the corresponding optical fiber; the encryption and decryption device includes: an encryption device and a plurality of decryption devices; each decryption device corresponds to an optical detector; after the multiplexed optical signal is distributed to the corresponding optical fiber, the encryption device encrypts the multiplexed optical signal using a preset encryption algorithm, and then the multiplexed optical signal is decrypted. The signal starts to transmit; after the optical detector receives the multiplexed optical signal, it uses its own decryption device to decrypt it using a preset decryption algorithm, and then uses a demultiplexer to demultiplex the multiplexed optical signal; the optical switching device routes the multiplexed optical signal transmitted in the optical fiber array to different optical detectors; each optical detector and each optical switching device is regarded as a node, and the optical burst switching device monitors the characteristics of the multiplexed optical signal of each node in each time period in real time to monitor and transmit data bursts; the encryption device performs a signal disturbance detection method on the optical fiber, including: randomly selecting a length portion from the optical fiber as a disturbance detection path; then randomly selecting a length portion from the optical fiber that does not overlap with the disturbance detection path and is equal to the length of the disturbance detection path as a direct detection path; preparing a quantum coherent state |α> and its corresponding superposition state |-α>, and constructing a superposition state A coherent light beam is passed through an optical fiber; if the optical fiber is disturbed, the effect of the coherent state is an operator in is the Hamiltonian operator related to the disturbance, and t is the time; an asymmetric Mach-Zehnder interferometer is used to split the light beam into two paths, one path passing through the direct detection path and the other path passing through the disturbance detection path; a controllable phase shift operation is added to the disturbance detection path; then the number of first photons at the output end of the direct detection path and the number of second photons at the output end of the disturbance detection path are detected respectively; the difference in the number of photons is calculated; based on the difference in the number of photons, the degree of optical fiber disturbance is calculated using the Bell inequality and the correlation characteristics of the quantum state; if the degree of optical fiber disturbance is greater than 0, it is determined that there is disturbance in the optical fiber.

2. The high-speed and high-security optical module optical fiber array according to claim 1, characterized in that: The characteristics of the multiplexed optical signal include: frequency, wavelength, amplitude and power.

3. The high-speed and high-security optical module optical fiber array according to claim 2, characterized in that: The optical burst switching device regards each optical detector and each optical switching device as a node, and divides each node into an edge node and a core node according to the historical traffic characteristics of each node; the historical traffic characteristics include: bandwidth, throughput, delay, jitter, bit error rate and signal-to-noise ratio; the optical burst switching device aggregates into a data burst according to a predetermined strategy based on the characteristics of all multiplexed optical signals of each node at each time, generates a control packet for each data burst, and sends the control packet to the core node a set period of time before the data burst is generated. After receiving the control packet, the core node reserves optical path and wavelength resources for the data burst within a predetermined time period according to the burst information, and sends a control instruction to the optical switching device; the optical switching device sends the data burst to the core node that sends the control command according to the reserved optical path and wavelength resources; after receiving the data burst, the core node splits it into the original multiplexed optical signal and resends it.

4. The high-speed and high-security optical module optical fiber array according to claim 3, characterized in that: Before the encryption device encrypts the multiplexed optical signal using a preset encryption algorithm, it first performs a signal disturbance detection on the optical fiber. If there is a signal disturbance, the multiplexed optical signal is encrypted and a decryption instruction is broadcast to each decryption device; each decryption device starts running after receiving the decryption instruction.

5. The high-speed and high-security optical module optical fiber array according to claim 4, characterized in that: A controllable phase shift operation is added to the disturbance detection path through the following formula: in, is the result of controllable phase shift operation; φ, η and κ are phase shift amount, two-photon operation coefficient and nonlinear operation coefficient respectively; and are the creation and annihilation operators of the superposition state respectively; i is the imaginary number symbol.

6. The high-speed and high-security optical module optical fiber array according to claim 5, characterized in that: The output state of the output terminal of the disturbance detection path |ψ out >Use the following formula to express: Use the following formula to calculate the photon number difference: Set four different phase shifts: φ1, φ2, φ3 and φ4; Four different controllable phase shift operation results are obtained, which are: and Then, four different photon number difference values ​​are obtained, namely: ΔN(φ1), ΔN(φ2), ΔN(φ3) and ΔN(φ4).

7. The high-speed and high-security optical module optical fiber array according to claim 6, characterized in that: The Bell inequality value S is calculated based on the photon number difference using the Bell inequality using the following formula: S=|MΔN(φ1)>+MΔN(φ2)<-<ΔN(φ3)>+<ΔN(φ4)<|; Use the following formula to calculate the fiber disturbance degree: δ=max(0,S-2); Where δ is the degree of fiber disturbance.

8. The high-speed and high-security optical module optical fiber array according to claim 7, characterized in that: The encryption device encrypts using a symmetric encryption algorithm; the decryption device decrypts using a decryption algorithm corresponding to the symmetric encryption algorithm.

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