Photo-generated light-borne terahertz passive optical network system and transmission method

A passive optical network and optical network unit technology, applied in non-optical transmission systems, etc., can solve the problems of lack of application feasibility, limited microwave and millimeter waves, etc.

Active Publication Date: 2020-07-03
PURPLE MOUNTAIN LAB +1
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The light-generated light-borne terahertz passive optical network system and transmission method have become a promising research dir

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  • Photo-generated light-borne terahertz passive optical network system and transmission method
  • Photo-generated light-borne terahertz passive optical network system and transmission method
  • Photo-generated light-borne terahertz passive optical network system and transmission method

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[0022]In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Hereinafter, embodiments of the present invention will be described in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refer...

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Abstract

The embodiment of the invention discloses a photo-generated optical terahertz passive optical network system and a transmission method, and relates to the technical field of optical communication. Thesystem comprises an optical line terminal, a feed-in optical fiber, a far-end node, a distributed optical fiber and an optical network unit, at an optical line terminal, a comb-shaped spectrum generator driven by a radio frequency signal generator generates a group of multi-wavelength optical carriers with coherent optical phases, the multi-wavelength optical carriers are divided into three pathsby an optical branching device, one path is used as a data optical carrier, and the other two paths are used as beat frequency optical carriers for optical heterodyne beat frequency. The three pathsof optical carriers are transmitted to a far-end node through respective feed-in optical fibers, and the far-end node is connected to each optical network unit through a distributed optical fiber. According to the invention, the point-to-multipoint flexible configuration of the carrier frequency above hundreds of GHz and the transmission purpose of bidirectional receiving and transmitting are realized.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical-generated optical-carrying terahertz passive optical network system and a transmission method. Background technique [0002] With the explosive growth of demand for mobile data traffic, low-frequency spectrum resources are increasingly tight, and the bandwidth limitation of millimeter-wave wireless communication is becoming more and more obvious. The carrier frequency of wireless communication has begun to develop towards the terahertz (THz) Refers to electromagnetic waves with a frequency range of 0.1-10 THz, which is 1-4 orders of magnitude higher than the microwave frequency band, and the amount of information transmitted has a significant increase in orders of magnitude, and can even provide a transmission rate comparable to that of optical fibers. Combined with high-order coding and modulation technology and multi-dimensional multiplexing mechanism, ...

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Application Information

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IPC IPC(8): H04B10/90
CPCH04B10/90
Inventor 朱敏李爱杰许炜梁邹昱聪黄永明尤肖虎
Owner PURPLE MOUNTAIN LAB
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