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Adaptive balanced filter device and method in optical fiber communication

A technology of adaptive equalization and equalization filtering, which is applied in the field of optical communication and can solve the problems of large power consumption and large circuit scale

Active Publication Date: 2016-07-27
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both the existing time-domain adaptive equalization filter devices and frequency-domain adaptive equalization filter devices have the problems of large circuit scale and high power consumption

Method used

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  • Adaptive balanced filter device and method in optical fiber communication
  • Adaptive balanced filter device and method in optical fiber communication
  • Adaptive balanced filter device and method in optical fiber communication

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Embodiment Construction

[0068] In order to illustrate the embodiments and technical solutions of the present invention more clearly, the technical solutions of the present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0069] figure 2 A schematic structural diagram of an adaptive equalization filter device in optical fiber communication provided by an embodiment of the present invention, as shown in figure 2 As shown, the device includes: a data grouping unit 201, a time-frequency conversion unit 202, an equalization filter unit 203, an inverse Fourier transform unit 204, and a data merging unit 205; wherein...

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Abstract

The invention discloses an adaptive balanced filter device in optical fiber communication. The device comprises a data grouping unit, a time-frequency transformation unit, a balanced filter unit, an inverse Fourier transformation unit and a data merging unit, wherein the data grouping unit is used for grouping the received time-domain signals according to sample point indexes to obtain grouped time-domain signals; the time-frequency transformation unit is used for transforming the grouped time-domain signals into grouped frequency-domain signals; the balanced filter unit is used for performing balanced filtration on the grouped frequency-domain signals according to a frequency-domain balanced filter coefficient; the inverse Fourier transformation unit is used for performing inverse Fourier transformation on the grouped frequency-domain signals after balanced filtration to obtain grouped time-domain signals after balanced filtration; and the data merging unit is used for merging the grouped time-domain signals after balanced filtration to obtain complete time-domain signals after balanced filtration. The invention further simultaneously discloses an adaptive balanced filter method in optical fiber communication.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to an adaptive equalization filtering device and method in optical fiber communication. Background technique [0002] As Internet traffic increases, greater capacity is required in the optical communication system of the backbone system. When the bit rate per wavelength increases, the degradation of information quality due to chromatic dispersion, polarization mode dispersion, and waveform distortion of various nonlinear effects on the transmission path becomes serious. Compared with non-coherent technology, digital coherent technology has obvious advantages, and is widely used in high-speed optical communication systems. In the optical coherent receiver, by mixing the signal light and the local oscillator light, the amplitude and phase information of the signal light are transferred to the baseband signal, so the optical coherent detection retains all the information of the li...

Claims

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Application Information

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IPC IPC(8): H04B10/25H04B10/2507
CPCH04B10/25
Inventor 姚扬中蔡轶黄源良李运鹏顾国华
Owner SANECHIPS TECH CO LTD
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