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Optical wavelength converter designing method

A wavelength conversion and design method technology, applied in the field of optical wavelength converter design and research, can solve problems such as poor conversion flatness and limited wavelength conversion bandwidth, and achieve good flatness, high wavelength conversion efficiency, and good results

Inactive Publication Date: 2015-03-25
LESHAN POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER +1
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Problems solved by technology

[0009] The invention provides a design method of an optical wavelength converter, which solves the technical problems of limited wavelength conversion bandwidth and poor conversion flatness in existing wavelength converters, and realizes that the optical wavelength converter designed by this method has an extended The wavelength conversion bandwidth effect is better, and the technical effect of maintaining high wavelength conversion efficiency and good flatness

Method used

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  • Optical wavelength converter designing method

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Embodiment 1

[0034] In Embodiment 1, a design method of an optical wavelength converter is provided, please refer to Figure 1-Figure 5 , the method includes:

[0035] Step 1: Define a step-chirp quasi-phase-matched PPLN crystal structure model that can simultaneously obtain larger bandwidth and higher conversion flatness;

[0036] Step 2: Given the constraints and initial conditions of the wavelength conversion characteristics;

[0037] Step 3: Determine the wavelength conversion characteristic curves of the three-stage step-chirp quasi-phase-matching structure under the constraints and the initial conditions;

[0038] Step 4: Determine the optimal wavelength conversion characteristic curve of the step-chirp quasi-phase-matching structure under the constraint conditions and the five segmentation conditions under the initial conditions;

[0039] Step 5: According to the result of step 4, determine the design parameters of the wavelength converter based on the step-chirped PPLN crystal st...

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Abstract

The invention discloses an optical wavelength converter designing method. The method comprises the steps of defining a step-chirped-quasi-phase-matched PPLN crystal structural model high in bandwidth and conversion flatness, giving the constraint condition and initial condition of wavelength conversion characteristics, determining the wavelength conversion characteristic curve of a three-section step-chirped-quasi-phase-matched structure under the constraint condition and initial condition, determining the optimal wavelength conversion characteristic curves of the step-chirped-quasi-phase-matched structure under five segmentation conditions under the constraint condition and initial condition, and determining the designing parameters of a wavelength converter based on the step-chirped PPLN crystal structure according to the result obtained from the last step. The optical wavelength converter designed with the method has the advantages of being good in wavelength extension effect and bandwidth conversion effect and capable of keeping high wavelength conversion efficiency and high flatness.

Description

technical field [0001] The invention relates to the field of optical wavelength converter design research, in particular to a design method of an optical wavelength converter. Background technique [0002] With the rapid growth of network services, the market of various broadband and multimedia services continues to grow, and high-speed and large-capacity integrated service networks have become the development trend of modern communication networks. The all-optical communication network is rapidly developing from the previous point-to-point communication to the multi-wavelength optical fiber network. The use of optical nonlinear effects to realize all-optical processing of high-speed optical signals has become one of the requirements for the development of optical networks. The transmission, control and exchange of wavelength signals has become an urgent problem to be solved. [0003] At present, wavelength conversion technology is a key technology in the future all-optical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/35G02B27/00
CPCG02F1/3544G02F1/3548
Inventor 郭劲松王朝霞吴海东伍韵文
Owner LESHAN POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER
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