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A flexible and high-speed free-space-few-mode fiber hybrid communication device

A few-mode fiber, free-space technology, applied in the field of free-space-few-mode fiber hybrid communication devices, can solve the problems of low flexibility and difficult to meet flexible and changeable communication needs, to expand the scope of application, reduce photoelectric / Electro-optical conversion process, the effect of enhancing flexibility

Active Publication Date: 2020-06-19
北京驱光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the traditional hybrid communication system only operates in one working mode, the flexibility is not high, it is difficult to meet the flexible and changeable communication requirements of various application scenarios in the future, and it is impossible to solve the problem of hybrid communication system without changing the system structure. The problem of having more than one working mode in the case of

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  • A flexible and high-speed free-space-few-mode fiber hybrid communication device

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Embodiment approach 1

[0020] A flexible and high-speed free-space-few-mode fiber hybrid communication device such as figure 1 The shown device includes: high-power laser array 1, optical modulator array 2, signal source 3, wavelength division multiplexing device 4, rough tracking device array 5, fine tracking device array 6, fiber end mode multiplexing device 7, less Mode fiber link 8, fiber end demultiplexing device 9, optical signal amplifier 10, photodetector array 11, signal analysis device 12;

[0021] The specific connection method is: the output end of the high-power laser array 1 is connected to the optical input end of the optical modulator array 2, the output end of the signal source 3 is connected to the electrical input end of the optical modulator array 2, and the output end of the optical modulator array 2 is connected to The input end of the wavelength division multiplexing device 4, the output end of the wavelength division multiplexing device 4 is aligned with the input end of the ...

Embodiment approach 2

[0027] A flexible and high-speed free-space-few-mode fiber hybrid communication device such as figure 1The shown device includes: high-power laser array 1, optical modulator array 2, signal source 3, wavelength division multiplexing device 4, rough tracking device array 5, fine tracking device array 6, fiber end mode multiplexing device 7, less Mode fiber link 8, fiber end demultiplexing device 9, optical signal amplifier 10, photodetector array 11, signal analysis device 12;

[0028] The specific connection method is: the output end of the high-power laser array 1 is connected to the optical input end of the optical modulator array 2, the output end of the signal source 3 is connected to the electrical input end of the optical modulator array 2, and the output end of the optical modulator array 2 is connected to The input end of the wavelength division multiplexing device 4, the output end of the wavelength division multiplexing device 4 is aligned with the input end of the c...

Embodiment approach 3

[0034] A flexible and high-speed free-space-few-mode fiber hybrid communication device such as figure 1 The shown device includes: high-power laser array 1, optical modulator array 2, signal source 3, wavelength division multiplexing device 4, rough tracking device array 5, fine tracking device array 6, fiber end mode multiplexing device 7, less Mode fiber link 8, fiber end demultiplexing device 9, optical signal amplifier 10, photodetector array 11, signal analysis device 12;

[0035] The specific connection method is: the output end of the high-power laser array 1 is connected to the optical input end of the optical modulator array 2, the output end of the signal source 3 is connected to the electrical input end of the optical modulator array 2, and the output end of the optical modulator array 2 is connected to The input end of the wavelength division multiplexing device 4, the output end of the wavelength division multiplexing device 4 is aligned with the input end of the ...

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Abstract

A flexible high-speed free space-few-mode optical fiber hybrid communication device solves the problems that a traditional hybrid communication system only operates in one working mode, the flexibility is not high, the flexible and changeable communication requirements of all application scenes in the future are not easily met, and the problem that the hybrid communication system has one or more working modes under the condition that the system structure is not changed. A free space optical communication link and an optical communication link can be organically fused, so that the photoelectric / electro-optical conversion process is reduced, and convenience is provided for rapid data transmission; meanwhile, the device can flexibly provide two communication working modes of rate priority andquality priority under the same structure without changing device paramters; in a rate priority mode, Tb / s-level high-rate communication can be realized, and in a quality priority mode, Gb / s-level high-quality communication can be realized, so that the flexibility of a hybrid communication system is greatly improved, and the application range of the communication system is further expanded, whichis very beneficial to future communication, radar, wireless sensing and the like.

Description

technical field [0001] The invention relates to a flexible and high-speed free space-few-mode optical fiber hybrid communication device, which is suitable for technical fields such as laser communication, optical radar, and wireless optical sensing. Background technique [0002] With the advent of the information age, the amount of information in communication services has increased dramatically, and the capacity of communication networks has been far from meeting the needs of rapid social development. Expanding network bandwidth resources, increasing communication traffic, and ensuring ultra-high-speed and ultra-large-capacity transmission of information have become important issues that the current communication industry needs to face. [0003] The current mainstream communication methods include microwave communication, optical fiber communication, and free space optical communication, etc., and are developing towards the direction of mutual integration, that is, forming ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/11H04B10/25
CPCH04B10/11H04B10/25891
Inventor 陈宏尧王建萍任芳
Owner 北京驱光科技有限公司