WO2023123585A1 - Modèle de calcul de diaphonie non linéaire à fibre optique multi-cœur réel basé sur un concept par morceaux - Google Patents

Modèle de calcul de diaphonie non linéaire à fibre optique multi-cœur réel basé sur un concept par morceaux Download PDF

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WO2023123585A1
WO2023123585A1 PCT/CN2022/073139 CN2022073139W WO2023123585A1 WO 2023123585 A1 WO2023123585 A1 WO 2023123585A1 CN 2022073139 W CN2022073139 W CN 2022073139W WO 2023123585 A1 WO2023123585 A1 WO 2023123585A1
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nonlinear
output power
coupling
power amplitude
segment
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PCT/CN2022/073139
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向练
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苏州大学
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation

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  • the invention relates to the technical field of optical fiber manufacturing, in particular to an actual multi-core optical fiber nonlinear crosstalk calculation model, equipment, device and computer storage medium based on the idea of segmentation.
  • MCFs with single-mode cores can easily adopt the latest single-mode technology.
  • ICXT inter-core crosstalk
  • CMT coupled-mode theory
  • CPT coupled-power theory
  • Tetsuya Hayashi et al. proposed a discrete variation model (DCM) in 2011 for the longitudinal evolution of ICXT in a uniform weakly coupled MCF with bending and twisting perturbations, and the study confirmed that in the case of small bending radii , the model matches well with experiments in real uniform weakly coupled MCFs.
  • Li et al. derived a new CMT-based model for crosstalk estimation of weakly coupled multi-core fibers in the form of segmented simulation of phase-matching points.
  • Wang et al. proposed a Universal Semi-Analytical Model (USAM) for crosstalk estimation in practical weakly coupled MCFs.
  • USAM Universal Semi-Analytical Model
  • the technical problem to be solved by the present invention is to overcome the problem in the prior art that the nonlinear influence of the fiber is not considered.
  • the present invention provides an actual multi-core optical fiber nonlinear crosstalk calculation model, equipment, device and computer storage medium based on the idea of segmentation, including:
  • the stepwise nonlinear coupling model is used to process the nonlinear coupled mode equation, and the obtained piecewise linear crosstalk coupled mode equation and the piecewise nonlinear crosstalk coupled mode equation include:
  • step-by-step nonlinear coupled model to the nonlinear coupled mode equation is processed to obtain the piecewise linear coupled mode equation and the piecewise nonlinear coupled mode equation
  • a n and A m are the slow-varying complex amplitudes of core n and core m
  • k mn is the linear coupling coefficient
  • q n is the self-modulation coupling coefficient
  • j is a complex number
  • ⁇ mn is the The relative phase mismatch coefficient of
  • a n (z) is the amplitude of mutual coupling and self-coupling of core n
  • a m (z) is the amplitude of mutual coupling and self-coupling of core m.
  • the calculation of the i-th section linear coupling output power amplitude using the piecewise linear coupled mode equation includes:
  • d is the length of each segment
  • g i is k i is the coupling coefficient
  • ⁇ i is the difference between the propagation constants of the two cores, is the output power amplitude of the i-1 segment nonlinear coupling.
  • the step of inputting the i-th segment linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i-th segment nonlinearly coupled output power amplitude includes:
  • the i-th section linear coupling output power amplitude Enter the piecewise nonlinear coupled mode equation , calculate the nonlinear coupling output power amplitude of the i-th segment
  • inputting the i-th segment nonlinear coupled output power amplitude into the piecewise linear coupled mode equation, obtaining the i+1 segment linear coupled output power amplitude includes:
  • the calculating and obtaining the optical fiber nonlinear crosstalk evaluation according to the target nonlinear coupling output power amplitude includes:
  • the target nonlinear coupling output power amplitude of the disturbed fiber core n is calculated using an alternate iterative method and interfering fiber core m target nonlinear coupling output power amplitude
  • the present invention also provides a device for detecting segmented multi-core optical fiber crosstalk, including:
  • a processing module configured to use the step-by-step nonlinear coupling model to process nonlinear coupled mode equations to obtain piecewise linear coupled mode equations and piecewise nonlinear coupled mode equations;
  • the first linear coupling calculation module is used to calculate and obtain the i-th linear coupling output power amplitude by using the piecewise linear coupling mode equation;
  • the first nonlinear coupling calculation module is used to input the i-th section linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i-th section nonlinearly coupled output power amplitude;
  • the second linear coupling calculation module is used to input the i-th segment nonlinear coupling output power amplitude into the piecewise linear coupled mode equation to obtain the i+1 segment linear coupling output power amplitude;
  • the second nonlinear coupling calculation module is used to input the i+1 segment linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i+1 segment nonlinearly coupled output power amplitude;
  • An inter-core crosstalk calculation module configured to calculate and obtain an optical fiber nonlinear crosstalk evaluation according to the nonlinear coupling output power amplitude of the i+1 segment.
  • the inter-core crosstalk calculation module includes:
  • the calculation unit is used to calculate the target nonlinear coupled output power amplitude of the interfered core n and the target nonlinearity of the interfered core m by using an alternate iterative method assuming an interfering fiber core m and an interfered fiber core n Coupled output power amplitude;
  • An evaluation unit configured to use the target nonlinear coupling output power amplitude of the interfered fiber core n and the target nonlinear coupling output power amplitude of the interfering fiber core m to calculate and obtain the optical fiber nonlinear crosstalk evaluation.
  • the present invention also provides a device for calculating the crosstalk of segmented multi-core optical fibers, including:
  • the memory is used to store a computer program; the processor is used to implement the steps of the above-mentioned method for calculating the crosstalk of a segmented multi-core optical fiber when executing the computer program.
  • the present invention also provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned method for calculating the crosstalk of a segmented multi-core optical fiber are realized .
  • the present invention provides an actual multi-core optical fiber nonlinear crosstalk calculation model based on the idea of segmentation, according to the step-by-step Fourier method to deal with the dispersion and nonlinear problems in the nonlinear Schrödinger equation, and construct a step-by-step nonlinear coupling model, And use the step-by-step nonlinear coupling model to process the nonlinear coupled mode equation to obtain the piecewise linear coupled mode equation and the piecewise nonlinear coupled mode equation; use the piecewise linear coupled mode equation to calculate the output power amplitude of the i-th linear coupling value, input the i-th section linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i-th section nonlinearly coupled output power amplitude, and then alternately iterate the i-th section nonlinearly coupled output power amplitude Calculate the linear coupling output power amplitude of the i+1 section and the nonlinear coupling output power amplitude of the i+1 section, and iterate
  • the present invention adopts a step-by-step nonlinear coupling model to obtain a crosstalk evaluation method of piecewise linear and piecewise nonlinear alternate iterative accumulation, and provides a fast and accurate crosstalk evaluation method in the nonlinear crosstalk evaluation, which is useful for the actual optical fiber Perturbation and nonlinear suppression provide theoretical support.
  • Fig. 1 is the flow chart of the first specific embodiment of the actual multi-core optical fiber nonlinear crosstalk calculation method based on the segmentation idea provided by the present invention
  • Fig. 2 is a flow chart of the simulation program
  • Figure 3 shows ICXT as a function of MCF length with different segment lengths
  • Figure 4 shows the experimental setup for nonlinear inter-core crosstalk evaluation
  • Fig. 5 is the simulation schematic diagram of ICXT as the function of MCF length
  • Fig. 6 is the comparative figure of experimental result and nonlinear ICXT theoretical value
  • Figure 7 is a comparison diagram of homogeneous MCF and heterogeneous MCF
  • Fig. 8 is a structural block diagram of an apparatus for detecting crosstalk of a segmented multi-core optical fiber provided by an embodiment of the present invention.
  • the core of the present invention is to provide an actual multi-core optical fiber nonlinear crosstalk calculation model, equipment, device and computer storage medium based on the segmentation idea, and obtain a new nonlinear crosstalk evaluation model on the basis of nonlinear coupled mode equations , which is faster and more accurate than the evaluation of crosstalk between them.
  • Fig. 1 is the flowchart of the first specific embodiment of the segmented multi-core optical fiber crosstalk detection method provided by the present invention; the specific operation steps are as follows:
  • Step S101 dealing with dispersion and nonlinear problems in the nonlinear Schrödinger equation according to the step-by-step Fourier method, and constructing a step-by-step nonlinear coupling model;
  • a split-step nonlinear coupling method (SNCM) is proposed, referring to the split-step Fourier method to deal with the dispersion and nonlinear problems in the nonlinear Schrödinger equation.
  • the split-step Fourier method has been widely used for the transmission of pulses in optical fibers with both dispersion and nonlinearity.
  • Step S102 using the step-by-step nonlinear coupling model to process the nonlinear coupled mode equations to obtain a piecewise linear coupled mode equation and a piecewise nonlinear coupled mode equation;
  • a n and A m are the slow-varying complex amplitudes of core n and core m
  • k mn is the linear coupling coefficient
  • q n is the self-modulation coupling coefficient
  • j is a complex number
  • ⁇ mn is the The relative phase mismatch coefficient of
  • a n (z) is the amplitude of mutual coupling and self-coupling of core n
  • a m (z) is the amplitude of mutual coupling and self-coupling of core m.
  • Step S103 Using the piecewise linear coupled mode equation to calculate the output power amplitude of the i-th linear coupling
  • d is the length of each segment, is the output power amplitude of the i-1 segment nonlinear coupling.
  • Step S104 Input the i-th section linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i-th section nonlinearly coupled output power amplitude;
  • Step S105 Input the i-th segment nonlinear coupling output power amplitude into the piecewise linear coupled mode equation to obtain the i+1 segment linear coupling output power amplitude;
  • Step S106 Input the i+1 segment linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i+1 segment nonlinearly coupled output power amplitude;
  • Step S108 Calculate and obtain an optical fiber nonlinear crosstalk evaluation according to the target nonlinear coupling output power amplitude.
  • the nonlinear coupling output power amplitude of the entire segment of the interfering fiber core n is calculated using the alternate iterative method and the nonlinear coupling output power amplitude of the entire segment of the interfering fiber core m
  • the dispersion and nonlinear problems in the nonlinear Schrödinger equation are processed according to the step-by-step Fourier method, and the step-by-step nonlinear coupling model is constructed, and the nonlinear coupling mode equation is transformed by the step-by-step nonlinear coupling model process to obtain a piecewise linear coupled mode equation and a piecewise nonlinear coupled mode equation; use the piecewise linear coupled mode equation to calculate the i-th linearly coupled output power amplitude, and input the i-th linearly coupled output power amplitude into the In the piecewise nonlinear coupling mode equation, the nonlinear coupling output power amplitude of the i segment is obtained, and then the nonlinear coupling output power amplitude of the i segment is alternately iteratively calculated to obtain the i+1 segment linear coupling output power amplitude and The output power amplitude of the nonlinear coupling of the i+1 section is iterated alternately until the last section is calculated, and the nonlinear
  • the fiber nonlinear output power amplitude is calculated according to the nonlinear output power amplitude of the entire section of fiber.
  • Linear crosstalk evaluation The present invention adopts a step-by-step nonlinear coupling model to obtain a crosstalk evaluation method of piecewise linear and piecewise nonlinear alternate iterative accumulation, and provides a fast and accurate crosstalk evaluation method in nonlinear crosstalk evaluation, and its application range More widely, it provides theoretical support for the disturbance and nonlinear suppression of actual optical fibers.
  • Fig. 2 is the flow chart of simulation program, based on above-mentioned embodiment, this embodiment has carried out simulation verification to above-mentioned steps, and simulation result and experimental structure are compared, and specific situation is as follows:
  • FIG. 4 shows the laboratory setup used to evaluate IC-XT in linear and nonlinear regimes.
  • an erbium-doped fiber amplifier (EDFA) in the 1550nm band and a variable optical attenuator (VOA) are used for optical amplification.
  • the VOA is used to modify the optical power level launched into the fiber.
  • the optical power enters the central core 1, and the outer core 6 measures the average value several times with a power meter. During the measurement process, ensure that the optical fiber is not affected by external interference factors.
  • Fig. 5(a) illustrates the simulation results of ICXT as a function of MCF length through linear incident power of ⁇ 2 dBm and nonlinear incident power of 20 dBm, respectively.
  • the transmission length exceeds 500m
  • the nonlinear coupling crosstalk begins to deviate from the linear ICXT
  • the linear coupling suppresses crosstalk by about 2dB.
  • the growth slope of the nonlinear coupling crosstalk is close to 0, which indicates that the nonlinear strength increases and the number of phase-matching points decreases significantly as the transmission length increases.
  • the segment length is 0.03m, the average value of inter-core crosstalk between two power regions is reduced from -30.4dB to -34.9dB.
  • DCM is a discrete variation model
  • USAM is a general semi-analytical model in Wang’s article
  • SNCM is a step-by-step nonlinear coupling model in this patent.
  • Figure 6 shows that the threshold bending radius of USAM and SNCM is smaller in intrinsic effective refractive index It remains basically unchanged in real homogeneous fibers and real heterogeneous fibers with large intrinsic effective refractive index.
  • the inhibition of ICXT by SCNM remained constant compared to USAM when the bending radius was less than the threshold bending radius Rpk , but it was clear that the inhibition of ICXT by SCNM increased along the bending radius compared to USAM when greater than Rpk .
  • the maximum suppression of ICXT can reach 6.2dB.
  • FIG. 8 is a structural block diagram of a device for calculating the nonlinear crosstalk of an actual multi-core optical fiber based on the segmentation idea provided by an embodiment of the present invention; the specific device may include:
  • a processing module configured to use the step-by-step nonlinear coupling model to process nonlinear coupled mode equations to obtain piecewise linear coupled mode equations and piecewise nonlinear coupled mode equations;
  • the first linear coupling calculation module is used to calculate and obtain the i-th linear coupling output power amplitude by using the piecewise linear coupling mode equation;
  • the first nonlinear coupling calculation module is used to input the i-th section linearly coupled output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i-th section nonlinearly coupled output power amplitude;
  • the second linear coupling calculation module is used to input the i-th segment nonlinear coupling output power amplitude into the piecewise linear coupled mode equation to obtain the i+1 segment linear coupling output power amplitude;
  • the second nonlinear coupling calculation module is used to input the i+1 segment linear coupling output power amplitude into the piecewise nonlinear coupled mode equation to obtain the i+1 segment nonlinear coupling output power amplitude;
  • An inter-core crosstalk calculation module configured to calculate and obtain an optical fiber nonlinear crosstalk evaluation according to the nonlinear coupling output power amplitude of the i+1 segment.
  • a device for detecting crosstalk of segmented multi-core optical fibers in this embodiment is used to realize the above-mentioned calculation model of nonlinear crosstalk of actual multi-core optical fibers based on the concept of segmentation, so a device for detecting crosstalk of segmented multi-core optical fibers
  • the specific implementation method can be seen in the embodiment part of an actual multi-core optical fiber nonlinear crosstalk calculation model based on the segmentation idea in the foregoing, for example, the construction model module 100, the processing module 200, the first linear coupling calculation module 300, the first The nonlinear coupling calculation module 400, the second linear coupling calculation module 500, the second nonlinear coupling calculation module 600, the judgment module 700, and the inter-core crosstalk calculation module 800 are respectively used to realize the above-mentioned actual multi-core based on the segmentation idea Steps S101 , S102 , S103 , S104 , S105 , S106 , S107 and S108 in the optical fiber nonlinear crosstalk calculation model, therefore,
  • the specific embodiment of the present invention also provides a segmented multi-core optical fiber crosstalk detection device, including: a memory for storing a computer program; a processor for implementing the above-mentioned segmentation concept based on the computer program The steps of the actual multi-core fiber nonlinear crosstalk calculation model.
  • a specific embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned practical multi-core based on segmentation idea is realized.
  • the steps of the optical fiber nonlinear crosstalk calculation model are described in detail below.
  • each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.
  • the description is relatively simple, and for relevant details, please refer to the description of the method part.
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically programmable ROM
  • EEPROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

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Abstract

L'invention concerne un procédé, un dispositif et un appareil de calcul de diaphonie non linéaire à fibre optique multi-cœur réelle basé sur un concept par morceaux, et un support de stockage informatique. Le procédé consiste à : construire un modèle de couplage non linéaire pas à pas (S101), et traiter une équation de mode de couplage non linéaire à l'aide du modèle de couplage non linéaire pas à pas pour obtenir une équation de mode de couplage linéaire par morceaux et une équation de mode de couplage non linéaire par morceaux (S102) ; calculer une ième amplitude de puissance de sortie de couplage linéaire de segment à l'aide de l'équation de mode de couplage linéaire par morceaux (S103) ; entrer l'ième amplitude de puissance de sortie de couplage linéaire de segment dans l'équation de mode de couplage non linéaire par morceaux pour obtenir une ième amplitude de puissance de sortie de couplage non linéaire de segment (S104) ; puis réaliser un calcul itératif alterné sur l'ième amplitude de puissance de sortie de couplage non linéaire de segment pour obtenir une (i+1) ième amplitude de puissance de sortie de couplage linéaire de segment et une (i +1) ième amplitude de puissance de sortie de couplage non linéaire de segment (S105, S106), et itérer de manière alternée jusqu'à ce que le dernier segment soit calculé pour obtenir une amplitude de puissance de sortie non linéaire cible (S107) ; et réaliser un calcul pour obtenir une évaluation de diaphonie non linéaire de fibre optique (S108). Un mode d'évaluation de diaphonie rapide et précis est fourni dans l'évaluation de diaphonie non linéaire.
PCT/CN2022/073139 2021-12-28 2022-01-21 Modèle de calcul de diaphonie non linéaire à fibre optique multi-cœur réel basé sur un concept par morceaux WO2023123585A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110129190A1 (en) * 2009-12-02 2011-06-02 Ofs Fitel, Llc Techniques for Manipulating Crosstalk in Multicore Fibers
CN110445534A (zh) * 2019-08-13 2019-11-12 中天宽带技术有限公司 一种多芯光纤串扰值确定的方法、系统及设备
CN112803996A (zh) * 2020-12-30 2021-05-14 中天通信技术有限公司 一种高非线性光纤耦合串扰的检测方法
CN112859329A (zh) * 2021-01-25 2021-05-28 苏州大学 基于分段思想的弱耦合多芯光纤串扰计算方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017061184A1 (fr) * 2015-10-08 2017-04-13 住友電気工業株式会社 Fibre optique à âmes multiples, câble à fibre optique à âmes multiples, et système de transmission par fibres optiques
CN111555803B (zh) * 2020-05-22 2021-07-27 中天宽带技术有限公司 双向多芯光纤串扰计算方法、装置及计算机可读存储介质
CN112733073A (zh) * 2020-12-30 2021-04-30 中天通信技术有限公司 一种基于耦合功率理论的多芯光纤串扰检测方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110129190A1 (en) * 2009-12-02 2011-06-02 Ofs Fitel, Llc Techniques for Manipulating Crosstalk in Multicore Fibers
CN110445534A (zh) * 2019-08-13 2019-11-12 中天宽带技术有限公司 一种多芯光纤串扰值确定的方法、系统及设备
CN112803996A (zh) * 2020-12-30 2021-05-14 中天通信技术有限公司 一种高非线性光纤耦合串扰的检测方法
CN112859329A (zh) * 2021-01-25 2021-05-28 苏州大学 基于分段思想的弱耦合多芯光纤串扰计算方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JIN, SHULIN ET AL.: "Theoretical evaluation of Nonlinear Crosstalk in weakly Multi-core Fiber with Random Perturbations", 26TH OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC), 31 July 2021 (2021-07-31), pages 1 - 3, XP034178595, DOI: 10.1364/OECC.2021.T2C.3 *
LI YING, CUI QINGFENG: "The Numerical Simulation to Nonlinear Schrodinger Equation Based on SSFT", JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION), vol. 34, no. 1, 15 March 2011 (2011-03-15), pages 43 - 45, 60, XP093076002 *

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