Modeling and Analysis of Optical Time-domain Reflectometry in Strongly-coupled Multi-core Fiber

Rui XING; Zhiqun YANG; Hui YAN; Yaping LIU; Xutao WANG; Yanze WANG; Wendou ZHANG; Lin ZHANG

doi:10.13756/j.gtxyj.2024.230095

Study On Optical Communications, Volume. 50, Issue 6, 23009501(2024)

Modeling and Analysis of Optical Time-domain Reflectometry in Strongly-coupled Multi-core Fiber

Rui XING1... Zhiqun YANG1,*, Hui YAN2, Yaping LIU1, Xutao WANG1, Yanze WANG1, Wendou ZHANG2, and Lin ZHANG13 |Show fewer author(s)

Author Affiliations

¹Key Laboratory of Opto-electronic Information Technology of Ministry of Education & Tianjin Key Laboratory of Integrated Opto-electronics Technologies and Devices, School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China

²Huawei Technologies Co., Ltd., Shenzhen 518129, China

³Peng Cheng Laboratory, Shenzhen 518038, China

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Fig. 1. The simulation technique of optical time domain reflectometry process

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Fig. 2. Diagram of the transmitted signal analysis

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Fig. 3. Channel energy variation diagram

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Fig. 4. Diagram of the simulation results

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Table 1. Calculation results of global capture factor B_ij

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Table 1. Calculation results of global capture factor B_ij

纤芯编号	1	2	3	4
1	1.21×10^－3	4.79×10^－11	3.93×10^－8	3.93×10^－8
2	4.79×10^－11	1.21×10^－3	3.93×10^－8	3.93×10^－8
3	3.93×10^－8	3.93×10^－8	1.21×10^－3	4.79×10^－11
4	3.93×10^－8	3.93×10^－8	4.79×10^－11	1.21×10^－3

Table 2. Parameters of the link simulation

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Table 2. Parameters of the link simulation

参数名称	参数值	参数名称	参数值
光源波长/nm	1 550	单模光纤长度/km	1
脉宽/ns	50	4芯光纤长度/km	26.7
频域宽度/ns	1 000	相位噪声/GHz	125
频域宽度/GHz	40	耦合步长/m	0.01
输入光功率/dBm	0	反射率	4%
衰耗系数/dB/km	0.157	器件插损/dB	1

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Rui XING, Zhiqun YANG, Hui YAN, Yaping LIU, Xutao WANG, Yanze WANG, Wendou ZHANG, Lin ZHANG. Modeling and Analysis of Optical Time-domain Reflectometry in Strongly-coupled Multi-core Fiber[J]. Study On Optical Communications, 2024, 50(6): 23009501

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