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Signal generation device and method, and communication device and method

A signal generating device and optical signal technology, applied in the field of communication, can solve security threats and other issues, and achieve the effect of preventing information leakage and illegal eavesdropping

Active Publication Date: 2021-10-29
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But with the huge increase in computing power, the security of this method is also beginning to be threatened

Method used

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  • Signal generation device and method, and communication device and method
  • Signal generation device and method, and communication device and method
  • Signal generation device and method, and communication device and method

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Embodiment Construction

[0048] In order to make the purpose, features, and advantages of the application more obvious and understandable, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0049] see figure 1 , figure 1 A schematic structural diagram of a signal generating device provided by an embodiment of the present application, the device mainly includes:

[0050]Laser, Mach-Zehnder modulator, first fiber Bragg grating, second fiber Bragg grating, three groups of intensity modulators;

[0051] The laser is used to generate an optical carrier;

[0052] T...

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Abstract

The invention provides a signal generation device and method and a communication device and method, and is applied to the technical field of communication. Frequency shift keying carrier signals with complementary wavelengths are generated on the two branches by using a plurality of intensity modulators, and the distribution of the wavelengths of the carrier signals between the two branches is controlled by a preset pseudo-random sequence; so that the random hopping of user data among channels corresponding to different wavelengths is realized, and information leakage and illegal eavesdropping are effectively prevented.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a signal generating device and method, and a communication device and method. Background technique [0002] Optical fiber communication technology has developed rapidly in recent years, which has greatly promoted social progress and economic development. However, with the frequent occurrence of user information leakage incidents around the world in recent years, the risk of user data being stolen by illegal third parties during transmission is increasing, and optical communication security technology has attracted increasing attention. [0003] Among the existing secure communication mechanisms, using algorithms to encrypt user data at the software layer is the most commonly used method. But with the huge increase in computing power, the security of this method has also begun to be threatened. Therefore, more and more researchers pay attention to physical la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50H04B10/516H04B10/54H04B10/556H04B10/85
CPCH04B10/503H04B10/5165H04B10/54H04B10/556H04B10/85Y02D30/70
Inventor 金亚刘宇陈寅芳齐艺超陈伟李明祝宁华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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