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Electro-optic coding/decoding transmitting-receiving device, as well as coding/decoding method thereof

A codec method and a technology of a transceiver device, which are applied in the field of electro-optic codec transceiver devices, can solve problems such as low address code structure performance, low device codec, and difficulty in dispersion compensation, so as to achieve good reconfigurability, increase user capacity, and improve Effect of Receive Sensitivity

Inactive Publication Date: 2018-09-04
GUANGXI NORMAL UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0003] However, the existing OCDMA system research based on all-optical signal processing has entered the technical "bottleneck", and there are three major problems: low spectral efficiency, difficulty in dispersion compensation, and serious multiple access interference. The performance of the address code structure is low, the capacity is too small, and the codec of the device decoding output has a low autocorrelation peak value, and it is not suitable for the development of the current software-defined optical network. Therefore, in recent years, electric domain coding (or electro-optical combination coding) and The combination of digital coherent receiving technology has become a new development trend

Method used

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  • Electro-optic coding/decoding transmitting-receiving device, as well as coding/decoding method thereof
  • Electro-optic coding/decoding transmitting-receiving device, as well as coding/decoding method thereof

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[0034] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0035]The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used...

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Abstract

The invention discloses an electro-optic coding / decoding transmitting-receiving device, comprising a system management module, an electronic time domain delay coding / decoding module, an optical frequency domain phase coding / decoding module and an optical fiber transmission module; wherein the electronic time domain delay coding / decoding module consists of a time delay coder, a time delay decoder,a 1*N divider, an N*1 combiner, and a threshold judgement device; the optical frequency domain phase coding / decoding module consists of a multi-stage amplitude optical-to-electric converter, an optical phase modulator, a multi-stage amplitude electric-to-optical converter, and an X-type coupler; and the optical fiber transmission module consists of an optical fiber, a wavelength division multiplexer and a wavelength division demultiplexer.

Description

technical field [0001] The present invention relates to the field of communication, in particular to an electro-optical codec transceiver device and a codec method. Background technique [0002] Optical code division multiple access (OCDMA) technology, one of the important alternatives for the next generation optical access network, has many advantages such as strong confidentiality, random access, soft capacity, and strong comprehensive services. It provides good physical layer security protection for the system, and by assigning address codes with different code lengths and code weights, it can meet the multiple QoS requirements of interactive services and other integrated broadband services, and is more suitable for dynamic optical networks than TWDM. Layer networking has important application value in communication related to national economy, people's livelihood and national defense security. [0003] However, the existing OCDMA system research based on all-optical sig...

Claims

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Application Information

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IPC IPC(8): H04B10/40H04B10/516
CPCH04B10/40H04B10/516
Inventor 李传起周鹏陆叶乐翔曾汝琦周慧丽李明扬
Owner GUANGXI NORMAL UNIV
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