Chaotic optical fiber communication method based on electric domain compensation

A technology of optical fiber communication and optical fiber communication system, which is applied in the field of chaotic optical fiber communication based on electrical domain compensation, can solve the problems of dispersion, nonlinear effect, and low reliability of chaotic optical fiber communication, and achieve simple algorithm implementation, simple hardware implementation, and Effect of Avoiding Fiber Channel Nonlinear Effects

Active Publication Date: 2018-11-02
XIAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method of chaotic optical fiber communication based on electrical domain compensation, which solves the problems of low reliability

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  • Chaotic optical fiber communication method based on electric domain compensation
  • Chaotic optical fiber communication method based on electric domain compensation
  • Chaotic optical fiber communication method based on electric domain compensation

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] refer to figure 1 The structure of the chaotic optical fiber communication system on which the method of the present invention depends includes three parts: an optical transmitter, an optical fiber channel and an optical receiver. The optical transmitter includes a chaotic pulse encoder, MZ modulator, and variable optical attenuator (VOA) connected in sequence; the optical receiver includes an erbium-doped amplifier (EDFA), a photoelectric receiver, a dispersion compensation module, and a chaotic matching filter connected in sequence. detector, symbol detector.

[0047] The method of the present invention utilizes the operating principle of this chaotic optical fiber communication system to be,

[0048] The function of the optical transmitter is: the binary bit information b m ∈ {1, 0} performs bipolar transformation to get s m ∈ {...

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Abstract

The invention discloses a chaotic optical fiber communication method based on electric domain compensation. The method includes the following steps: step 1, setting parameters of a chaotic optical fiber communication system; step 2, performing bipolar transformation on a binary data stream; step 3, encoding Sn into a chaotic signal u(t); step 4, determining a value of the number of iterations Iter; step 5, determining the input optical power; step 6, performing electric domain dispersion compensation; step 7, performing matched filtering on the signal after dispersion compensation; and step 8,carrying out sampling judgment, restoring source information, and completing the communication. The algorithm of the method is simple to implement and has low requirements on hardware structures.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and relates to a chaotic optical fiber communication method based on electrical domain compensation. Background technique [0002] With the advent of the information age, people's demand for super-large-scale multimedia information has grown rapidly, and the high-speed, efficient and safe transmission of information has become a fundamental issue in the field of communication. Optical fiber uses light waves as information carriers, and has outstanding advantages such as ultra-high bandwidth, ultra-large capacity, ultra-long distance, and strong anti-interference, and plays an irreplaceable role in wired high-speed information transmission. However, in the conventional optical fiber communication system, the transmitted data information is prone to leakage or illegal tampering, which is accompanied by serious security risks. [0003] Since the wide-spectrum characteristics of ...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04B10/516H04B10/2525
CPCH04B10/2525H04B10/516H04L9/001
Inventor 任海鹏孙郁哲姚俊良
Owner XIAN UNIV OF TECH
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