A commercial ground-based optical transceiver for interplanetary laser communication

Abstract

This invention relates to the field of laser communication technology, specifically to a commercial ground-based optical transceiver for interplanetary laser communication. It includes a laser emitting device and a laser receiving device. The laser receiving device comprises a short cylindrical optical system, a photoelectric converter, a gain-smoothing amplifier, and a resolver. The laser emitting device generates a laser beam and sends it to the laser receiving device. The short cylindrical optical system of the laser receiving device then focuses the received laser beam. The focused laser beam is then transmitted to the photoelectric converter, where it is converted into an electrical signal. After amplification, the amplified electrical signal is processed and resolved, thereby enabling laser communication between the spacecraft and the ground. This solves the technical problems of low information transmission rate and high bit error rate when traditional spacecraft use microwave communication during interplanetary flight.

Description

Technical Field

[0001] This invention relates to the field of laser communication technology, and in particular to a ground-based commercial optical transceiver for interplanetary laser communication. Background Technology

[0002] Laser communication is a communication method that uses lasers to transmit information. Lasers are a new type of light source with characteristics such as high brightness, strong directionality, good monochromaticity, and strong coherence. According to the different transmission media, it can be divided into atmospheric laser communication and fiber optic communication. Atmospheric laser communication uses the atmosphere as the transmission medium, while fiber optic communication uses optical fibers to transmit optical signals.

[0003] As humanity's exploration of space deepens, spacecraft are needed to conquer space. With the continuous development of aerospace technology, spacecraft technology has made great breakthroughs. Currently, when spacecraft are flying in space, they need to use interstellar laser communication to maintain contact with the ground in order to avoid losing contact during spaceflight.

[0004] Interstellar laser communication is a communication method that uses laser beams as information carriers. It can transmit data at high speed and with high capacity between distant stars. Compared with traditional microwave communication, laser communication has a higher transmission rate and a lower bit error rate. Summary of the Invention

[0005] The purpose of this invention is to provide a commercial ground-based optical transceiver for interstellar laser communication, which solves the technical problems of low information transmission rate and high bit error rate when traditional spacecraft use microwave communication during interstellar flight.

[0006] To achieve the above objectives, the present invention provides a ground-based commercial optical transceiver for interplanetary laser communication, comprising a laser emitting device and a laser receiving device. The laser emitting device generates a laser beam and transmits it to the laser receiving device, which receives, processes, and resolves the laser beam. The laser receiving device includes a short cylindrical optical system, a photoelectric converter, a gain-smoothing amplifier, and a resolver. The short cylindrical optical system receives the laser beam and focuses it onto the photoelectric converter. The photoelectric converter converts the laser beam into an electrical signal and outputs it to the gain-smoothing amplifier, which amplifies the electrical signal. The resolver processes and resolves the amplified electrical signal.

[0007] The laser receiving device further includes a control system, which is used to adjust the parameters of the short cylindrical optical system, the photoelectric converter, the gain-smoothing amplifier, and the resolver.

[0008] The control system is a 64-bit servo-controlled system.

[0009] The short cylindrical optical system is a short cylindrical tube magnifying glass.

[0010] The laser emitting device includes a laser and a dot-matrix three-view optical system. The laser is used to generate a laser beam, and the dot-matrix three-view optical system is used to collimate and focus the laser beam. The laser emitting device further includes a controller, which is used to adjust the output power of the laser and the shape, size and direction of the laser beam.

[0011] The controller is a 64-bit digital coded controller.

[0012] This invention discloses a commercial ground-based optical transceiver for interstellar laser communication. The invention generates a laser beam using a laser emitting device and sends it to a laser receiving device. The receiving device then focuses the received laser beam using a short cylindrical optical system. The focused laser beam is then transmitted to a photoelectric converter, where it is converted into an electrical signal. This signal is amplified, processed, and analyzed, thereby enabling laser communication between a spacecraft and the ground. This solves the technical problems of low information transmission rates and high error rates associated with traditional microwave communication used in interstellar spacecraft. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a control principle diagram of the ground-based commercial optical transceiver for interplanetary laser communication according to the first embodiment of the present invention.

[0015] In the diagram: 101-Laser emitting device, 102-Laser receiving device, 103-Short columnar optical system, 104-Photoelectric converter, 105-Gain-smoothing amplifier, 106-Resolver, 107-Control system, 108-Laser, 109-Dot three-view optical system, 110-Controller. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] First embodiment: Please see Figure 1 , Figure 1 This is a control principle diagram of a ground-based commercial optical transceiver for interplanetary laser communication according to the first embodiment of the present invention. The present invention provides a ground-based commercial optical transceiver for interplanetary laser communication, including a laser emitting device 101 and a laser receiving device 102. The laser receiving device 102 includes a short cylindrical optical system 103, a photoelectric converter 104, a gain-smoothing amplifier 105, a resolver 106, and a control system 107. The laser emitting device 101 includes a laser 108, a dot three-view optical system 109, and a controller 110.

[0019] In this embodiment, the present invention generates a laser beam through the laser emitting device 101 and sends it to the laser receiving device 102. Then, the short cylindrical optical system 103 of the laser receiving device 102 focuses the received laser beam, and then transmits the focused laser beam to the photoelectric converter 104 to be converted into an electrical signal. After amplification, the amplified electrical signal is processed and analyzed, thereby realizing laser communication between the spacecraft and the ground. This solves the technical problems of low information transmission rate and high bit error rate when traditional spacecraft use microwave communication during interstellar flight.

[0020] The laser emitting device 101 generates a laser beam and sends it to the laser receiving device 102. The laser receiving device 102 receives the laser beam and processes and analyzes it. The short cylindrical optical system 103 receives the laser beam and focuses it onto the photoelectric converter 104. The photoelectric converter 104 converts the laser beam into an electrical signal and outputs it to the gain-smoothing amplifier 105. The gain-smoothing amplifier 105 amplifies the electrical signal. The analyzer 106 processes and analyzes the amplified electrical signal.

[0021] Secondly, the control system 107 is used to adjust the parameters of the short cylindrical optical system 103, the photoelectric converter 104, the gain-smoothing amplifier 105, and the resolver 106. The control system 107 is a 64-bit servo-controlled system 107. The control system 107 can adjust the gain, bandwidth, and other parameters of the laser receiving device 102 to ensure that it can meet the requirements of commercial laser communication.

[0022] Meanwhile, the short cylindrical optical system 103 is a short cylindrical tube magnifying glass.

[0023] In addition, the laser emitting device 101 includes a laser 108 and a dot three-view optical system 109. The laser 108 is used to generate a laser beam; the dot three-view optical system 109 is used to collimate and focus the laser beam. The laser 108 is a 1067µm laser. The dot three-view optical system 109 includes a lens, a reflector, and other optical elements.

[0024] Finally, the laser emitting device 101 also includes a controller 110, which is used to adjust the output power of the laser 108 and the shape, size and direction of the laser beam. The controller 110 is a 64-bit digital coded controller 110. The controller 110 uses a 64-bit digital coded controller 110 to adjust the output power of the laser 108 and the shape, size and direction of the laser beam, etc., to ensure that it can meet specific communication or measurement requirements.

[0025] When using a ground-based commercial optical transceiver for interplanetary laser communication according to this embodiment, a laser beam is generated by the laser 108 and sent to the dot-matrix optical system 109. The laser beam is collimated and focused at the dot-matrix optical system 109 to ensure accurate transmission to the short cylindrical optical system 103. During laser beam transmission, the controller 110 adjusts the output power of the laser 108 and the shape, size, and direction of the laser beam to ensure that the laser beam generated by the laser 108 meets specific communication or measurement requirements. The received laser beam is focused by the short cylindrical optical system 103 of the laser receiving device 102, and then the focused laser beam is transmitted to the photoelectric converter 104 to be converted into an electrical signal. After the laser beam is converted into an electrical signal, the photoelectric converter 104 outputs the electrical signal to the gain-smoothing amplifier 105, where the electrical signal is amplified. After the electrical signal is amplified, it is transmitted to the resolver 106, where the amplified electrical signal can be processed and resolved, thereby enabling laser communication between the spacecraft and the ground.

[0026] In this laser communication system, the laser receiving device 102 has the characteristics of high sensitivity, low noise, and strong anti-interference ability. At the same time, in order to ensure the reliability and stability of communication, the laser receiving device 102 also has the characteristics of fast response, high precision, and high stability.

[0027] In this laser communication system, the laser emitting device 101 is usually used in conjunction with the laser receiving device 102. The laser receiving device 102 is used to receive the laser beam reflected back from the target object and convert it into an electrical signal for processing and analysis.

[0028] In summary, this invention generates a laser beam using the laser emitting device 101 and sends it to the laser receiving device 102. The short cylindrical optical system 103 of the laser receiving device 102 then focuses the received laser beam, which is then transmitted to the photoelectric converter 104 to be converted into an electrical signal. After amplification, the amplified electrical signal is processed and analyzed, thereby realizing laser communication between the spacecraft and the ground. This enables commercial interplanetary signal transmission and reception with low power consumption and stable reception. It solves the technical problems of low information transmission rate and high error rate when traditional spacecraft use microwave communication during interplanetary flight.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A ground commercial optical transceiver for interplanetary laser communication, characterized in that, it comprises a laser emitting device and a laser receiving device, the laser emitting device is used to generate a laser beam and send it to the laser receiving device, and the laser receiving device is used to receive the laser beam and process and analyze it; the laser receiving device comprises a short cylindrical optical system, a photoelectric converter, a gain flattening amplifier and an analyzer, the short cylindrical optical system is used to receive the laser beam and focus it on the photoelectric converter, the photoelectric converter is used to convert the laser beam into an electrical signal and output it to the gain flattening amplifier, the gain flattening amplifier is used to amplify the electrical signal, and the analyzer is used to process and analyze the amplified electrical signal.

2. The ground commercial optical transceiver for interplanetary laser communication according to claim 1, characterized in that, the laser receiving device further comprises a control system, the control system is used to adjust the parameters of the short cylindrical optical system, the photoelectric converter, the gain flattening amplifier and the analyzer.

3. The ground commercial optical transceiver for interplanetary laser communication according to claim 2, characterized in that, the control system is a 64-bit servo servo control system.

4. The ground commercial optical transceiver for interplanetary laser communication according to claim 1, characterized in that, the short cylindrical optical system is a short cylindrical magnifying lens.

5. The ground commercial optical transceiver for interplanetary laser communication according to claim 1, characterized in that, the laser emitting device comprises a laser and a circular dot three-view optical system, the laser is used to generate a laser beam; and the circular dot three-view optical system is used to collimate and focus the laser beam.

6. The ground commercial optical transceiver for interplanetary laser communication according to claim 5, characterized in that, the laser emitting device further comprises a controller, the controller is used to adjust the output power of the laser and the shape, size and direction of the laser beam.

7. The ground commercial optical transceiver for interplanetary laser communication according to claim 6, characterized in that, the controller is a 64-bit digital coded servo controller.

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