A control method and hybrid amplifier based on erbium-doped and Raman amplifiers

A technology of Raman amplifiers and amplifiers, which is applied to lasers, phonon exciters, laser components, etc., and can solve problems such as poor amplification effects

Active Publication Date: 2022-02-15
BEIJING UNIV OF POSTS & TELECOMM +2
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Problems solved by technology

[0004] However, in the existing technology, EDFA and RFA are mostly used alone and adjusted independently. If only the existing EDFA and RFA are used in combination, the amplification effect will be poor.

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  • A control method and hybrid amplifier based on erbium-doped and Raman amplifiers
  • A control method and hybrid amplifier based on erbium-doped and Raman amplifiers
  • A control method and hybrid amplifier based on erbium-doped and Raman amplifiers

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Embodiment Construction

[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0068] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related Other details are not relevant to the invention.

[0069] It should be emphasized that the term "comprising / comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0070] Here, ...

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Abstract

The invention provides a control method based on erbium-doped and Raman amplifiers and a hybrid amplifier, the method comprising the following steps: selecting parameters within the parameter selection interval according to a preset parameter selection interval, establishing the parameters as a plurality of parameter groups, parameter Parameters in the group include Raman pump power, Erbium-doped pump power, Raman fiber length, and Erbium-doped fiber length; calculated from Raman pump power, Erbium-doped pump power, Raman fiber length, and Erbium-doped fiber length The total gain, using the genetic algorithm to iteratively update the parameter group, select the parameter group corresponding to the larger total gain in each iterative update; when the last iteration is completed, select the parameter group corresponding to the maximum total gain as the final target parameter. The application combines the Raman fiber amplifier and the erbium-doped fiber amplifier, iterates through the genetic algorithm, outputs the parameter group corresponding to the maximum total gain, and adjusts the Raman fiber amplifier and the erbium-doped fiber amplifier at the same time to improve the amplification effect.

Description

technical field [0001] The invention relates to the technical field of optical amplifiers, in particular to a control method based on erbium-doped and Raman amplifiers and a hybrid amplifier. Background technique [0002] In recent years, the rapid growth of new services such as big data, cloud computing, and the Internet of Things has posed severe challenges to the optical transport network based on optical fiber and wavelength division multiplexing, requiring the original fixed wavelength grid and rate transmission network to The direction of gridless variable rate large-capacity optical transmission network is developing to meet the requirements of optical transmission such as different spans, differentiated bandwidths, and complex topologies. Among them, optical fiber amplifiers are one of the indispensable devices in optical transmission. And other key technologies put forward higher requirements. [0003] Raman fiber amplifier (RFA) and erbium-doped fiber amplifier (E...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/294H04B10/291H01S3/067
CPCH04B10/294H04B10/2942H04B10/2916H01S3/06754
Inventor 忻向军常天海毛正王光全张琦刘博田凤姚海鹏田清华高然王珏王拥军王富李志沛郭栋常欢周思彤杨雷静
Owner BEIJING UNIV OF POSTS & TELECOMM
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