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Method for identifying types of optical cables and optical fibers in electric power communication engineering

A technology of power communication and optical fiber, which is applied in the field of identifying optical fiber type of optical cable

Active Publication Date: 2014-05-07
STATE GRID CORP OF CHINA +1
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AI Technical Summary

Problems solved by technology

At present, the identification of optical fiber type is carried out under laboratory conditions. In engineering practice, it can only be identified by the outer sheath of the optical cable.

Method used

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  • Method for identifying types of optical cables and optical fibers in electric power communication engineering
  • Method for identifying types of optical cables and optical fibers in electric power communication engineering
  • Method for identifying types of optical cables and optical fibers in electric power communication engineering

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Experimental program
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Embodiment Construction

[0023] G652 fiber:

[0024] TU-T's G.652 single-mode fiber optic cable characteristic standard was formulated in 1984 (1981-1984 research period) and the first version was formulated, after 1988 (1985-1988), 1992 (1989-1992), 1996 (1993- 1996), 2000 (1997-2000), January 2003 (2001-2004 research period) five revisions, 2005 (2005-2008 research period) six revisions, forming the latest version (seventh edition). In the sixth edition, the derivation of G.652 fiber is divided into 4 subcategories: G.652A, G.652B, G.652C, and G.652D. Its main technical performance parameters are shown in Table 1.

[0025] Table I:

[0026]

[0027] G655 fiber:

[0028] G.655 optical fiber is a new type of optical fiber specially designed and manufactured for a new generation of optical amplification dense wavelength division multiplexing transmission system in 1994. In 1996 (1993-1996), ITU-T formulated the first version of the characteristic standard of G.655 non-zero dispersion shifted si...

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Abstract

The invention relates to a method for identifying types of optical cables and optical fibers in electric power communication engineering. The method is characterized in that identification is carried out by utilizing the different mode field diameters of G652 optical fibers and G655 optical fibers. The method solves the problems that due to the facts that at present, the types of the optical fibers are identified under the laboratory conditions, and refractive index estimation can only be carried out by welding machine software in the engineering, the misjudgment phenomenon usually happens, the accuracy rate is not high, and signal collection cannot be carried out. According to the method, even if an outer protection sleeve is abraded, and engineering data are not complete, the types of the optical fibers can still be effectively identified, and it is ensured that the engineering is smoothly carried out.

Description

technical field [0001] The invention relates to the field of electric power communication engineering, in particular to a method for identifying optical fiber models of optical cables in electric power communication engineering. Background technique [0002] With the development of power optical fiber communication technology, optical fiber communication has become the absolute mainstream technology of communication transmission system, and the capacity of optical fiber communication system is getting larger and larger. With the maturity of EFDA amplification technology and dense wavelength division multiplexing technology, non-zero dispersion fiber has been widely used, so there is a market demand for wavelength division multiplexing transmission in the access network. The area that is most likely to realize the application of optical fiber all-optical network is also the backbone structure of the metropolitan area network or local network using DWDM technology. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/07
Inventor 赵群苏运东罗亮光陈建森
Owner STATE GRID CORP OF CHINA
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