Signal compensation method and device in optical fiber communication transmission system

A transmission system and optical fiber communication technology, applied in the field of signal compensation, can solve the problems of low signal transmission rate and complex signal equalization method, achieve good flexibility and reduce the effect of OSNR requirements

Active Publication Date: 2018-08-03
BEIJING UNIV OF POSTS & TELECOMM
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a signal compensation method and device in an optical fiber communication transmission system that overcomes the complex signal equa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0056] figure 1 A flow chart of a signal compensation method in an optical fiber communication transmission system according to an embodiment of the present invention, such as figure 1 As shown, the method of this embodiment is implemented at the signal sending end, and the method includes:

[0057] S100, dividing the initial light wave into X-path polarized light and Y-path polarized light.

[0058] S101. Obtain a probabilistic QAM signal, and use the probabilistic QAM signal to modulate the X-path polarized light to generate a probabilistic QAM modulation signal.

[0059] It should be noted that the technique of modulating other signals with probabilistic QAM signals is called probabilistic QAM modulation. Probabilist

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a signal compensation method and device in an optical fiber communication transmission system. The method comprises the following steps: S100, dividing an initial light wave into X-path polarized light and Y-path polarized light; S101, acquiring a probabilistic QAM (Quadrature Amplitude Modulation) signal, and modulating the X-path polarized light through the probabilistic QAM signal to generate a probabilistic QAM modulation signal; and S102, synthesizing the probabilistic QAM modulation signal and the Y-path polarized light into a polarized multiplexing signal, and transmitting the polarized multiplexing signal to a signal receiving end, so that the signal receiving end compensates for a damaged probabilistic QAM modulation signal according to the polarized multiplexing signal, wherein the damaged probabilistic QAM modulation signal is a signal generated by the probability QAM modulation signal after being subjected to polarization rotation RSOP (Resultant Setof Policy) damage in an optical fiber. Through adoption of the method and the device provided by the invention, the demand of the system for the OSNR (Optical Signal to Noise Ratio) is lowered, the damaged signal which is subjected to the RSOP damage is tracked and compensated. Compared with a conventional RSOP equalization algorithm, the signal compensation method and device have higher flexibility, and are suitable for high-speed optical fiber communication network systems interconnected by a future data center.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap