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Optical code converter based on Bragg grating of super-structure optical fiber

A technology of optical fiber Bragg and superstructure, applied in optical fiber transmission, optical waveguide coupling, electrical components, etc., can solve problems that have not yet been reported on research results, and achieve low cost, increased flexibility, and large market prospects.

Inactive Publication Date: 2009-02-04
PEKING UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The time-phase encoding optical code converter based on the closedness of superstructure fiber Bragg grating and Gold code has not been reported yet.

Method used

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  • Optical code converter based on Bragg grating of super-structure optical fiber
  • Optical code converter based on Bragg grating of super-structure optical fiber
  • Optical code converter based on Bragg grating of super-structure optical fiber

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Embodiment Construction

[0074] The optical code converter of the present invention will be described in detail below in combination with specific embodiments.

[0075] Such as figure 1 Shown is a fixed optical code converter of the present invention, which is composed of two fixed superstructure fiber Bragg gratings 4 and two optical circulators 2 for writing phase codes. The optical coded signal C output by the optical code division multiple access transmitter i , from the input optical fiber 1 into the optical code converter, first through the first optical circulator 2 into the first superstructure fiber Bragg grating time-phase encoder E k , the output is C i ⊕E k =C 2 , and then sent to the second optical circulator, and then through the second superstructure fiber Bragg grating time-phase optical encoder E l , the output is C 2 ⊕E l =C j , which is output from the output fiber 3, that is, from the optical code C i to C j conversion.

[0076] Such as figure 2 As shown, the reconfigu...

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Abstract

The invention provides a fiber bragg grating time phase coding optical code converter based on closeness of Gold bipolar codes, and the optical code converter comprises: a first optical circulator for receiving input optical coded signals and outputting coded signals of a first superstructure fiber bragg phase grating; the first superstructure fiber bragg phase grating for coding input optical coded signals to the first optical circulator once; a second optical circulator for receiving the optical coded signals coded by the first superstructure fiber bragg phase grating and outputting the output signals of the optical code converter; and a second superstructure fiber bragg phase grating for coding the input optical coded signals of the second optical circulator once again. The optical code converter based on closeness of Gold codes can realize the conversion of fixed and reconfigurable bipolar optical phase codes, so as to greatly improve the connectivity of network routing and security of information transmission as well as increasing the flexibility of network.

Description

Technical field: [0001] The invention belongs to the technical fields of next-generation information network and optical fiber communication, and in particular relates to a new structure of a time-phase code optical code converter. Background technique: [0002] Optical code division multiple access communication technology realizes high-speed transmission, routing and exchange of data through all-optical signal processing; at the same time, it also has the advantages of user asynchronous random multiple access, dynamic allocation of bandwidth, flexible networking methods, etc., suitable for variable bit Rate and burst business, support graded service quality, high-speed peer-to-peer applications and a certain degree of information transmission security, which is convenient for network upgrades and scalability. Therefore, it has broad application prospects in optical access network and metropolitan area network. [0003] The theory and technology of optical encoding / decodin...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04B10/02G02B6/27H04B10/25
Inventor 殷洪玺
Owner PEKING UNIV
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