Research on online monitoring system of submarine cable based on bidirectional Mach Zehnder interferometer

Fei Gao; Huan Zhang; Yao Li; Jiali Wei; Meng Wang

doi:10.1117/12.2585312

4 December 2020 Research on online monitoring system of submarine cable based on bidirectional Mach Zehnder interferometer

Fei Gao, Huan Zhang, Yao Li, Jiali Wei, Meng Wang

Author Affiliations +

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 116172E (2020) https://doi.org/10.1117/12.2585312
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

For the fact that the submarine cable has no sensing function and can’t sense external threats (such as anchor damage, manmade damage, etc.) in real time, an online monitoring system of submarine cable based on bidirectional Mach Zehnder interferometer (BMZI) is proposed. The sensing principle of the system is analyzed theoretically, and a new type of submarine cable is designed and developed. Different optical fibers inside the new submarine cable are selected as the sensing arms of the interferometer to carry out the vibration positioning test. The test results show that: the on-line monitoring system of submarine cable can effectively monitor the vibration events of submarine cable; the average positioning error is 13.23m with submarine cable of 3.5km.

Citation Download Citation

Fei Gao, Huan Zhang, Yao Li, Jiali Wei, and Meng Wang "Research on online monitoring system of submarine cable based on bidirectional Mach Zehnder interferometer", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 116172E (4 December 2020); https://doi.org/10.1117/12.2585312

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