Ultra Long Span φOTDR Sensing System based on ROPA Technology

Shiyu ZHANG; Jiang WU; Ming LI; Mingchao NIE; Jian XU

doi:10.13756/j.gtxyj.2024.220076

Journals >Study On Optical Communications >Volume 50 >Issue 2 >Page 22007601 > Article

Study On Optical Communications
Vol. 50, Issue 2, 22007601 (2024)

Ultra Long Span φOTDR Sensing System based on ROPA Technology

Shiyu ZHANG^1,2,3,*, Jiang WU⁴, Ming LI^1,2, Mingchao NIE^1,2, and Jian XU^1,2

Author Affiliations

¹Accelink Technologies Co., Ltd., Wuhan 430205, China

²National Key Laboratory of Optical Communication Technologies and Networks, Wuhan 430074, China

³Wuhan Research Institute of Posts and Telecommunications Co., Ltd., Wuhan 430074, China

⁴China Mobile Communication Co., Ltd., Beijing 100033, China

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DOI: 10.13756/j.gtxyj.2024.220076 Cite this Article

Shiyu ZHANG, Jiang WU, Ming LI, Mingchao NIE, Jian XU. Ultra Long Span φOTDR Sensing System based on ROPA Technology[J]. Study On Optical Communications, 2024, 50(2): 22007601 Copy Citation Text

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Fig. 1. Relationship between phase delay Δφ and fiber length change ΔL

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Fig. 2. φOTDR sensing system based on ROPA technology

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Fig. 3. Sensing performance of the system

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Fig. 4. Events of PZT

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参数	结果
第3级RGU输出信号功率/dBm	13.2
第3级RGU输入信号功率/dBm	10.5
第3级RGU输入泵浦功率/dBm	1.8
第2级RGU输出信号功率/dBm	15.8
第2级RGU输入信号功率/dBm	11.2
第2级RGU输入泵浦功率/dBm	1.4
第1级RGU输出信号功率/dBm	15.3
第1级RGU输入信号功率/dBm	8.3
第1级RGU输入泵浦/dBm	7.5
第1级RGU输出泵浦/dBm	6.3
第1级RGU增益/dB	7.0
第2级RGU增益/dB	4.6
第3级RGU增益/dB	2.7

Table 1. RGU data indicator

Shiyu ZHANG, Jiang WU, Ming LI, Mingchao NIE, Jian XU. Ultra Long Span φOTDR Sensing System based on ROPA Technology[J]. Study On Optical Communications, 2024, 50(2): 22007601

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