@inproceedings{cb359f8b84234e36ad6a9c8389d101ce,
title = "Enhancing the performance of BOTDA sensing through introducing additional pre-exhausted wavelength",
abstract = "This paper presents and experimentally demonstrates a novel scheme of Brillouin optical time domain analysis (BOTDA) sensing system to ensure the encoded pulse waveform amplified from EDFA is flat. This system also can eliminate the noise by introducing additional pre-exhausted wavelength at the laser. The experiment results indicate that this dual-wavelength pump light scheme can easily shape the Lorenz curve between Brillouin gain spectrum(BGS) and scan frequencies without any extra processing, compared to normal BOTDA system with single-wavelength pump light. The new scheme can also improve the intensity of Brillouin signal about 50mV as well as the frequency shift accuracy is increased by 5MHz, which is benefit for increasing sensing range and measurement accuracy.",
keywords = "BOTDA, EDFA transient effect, encoded pulse, pre-exhausted",
author = "Hongyan Zhao and Yongjun Wang and Qi Zhang and Feng Tian and Wenqing Tang and Tingting Yu and Xiangjun Xin",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; 10th International Conference on Information Optics and Photonics ; Conference date: 08-07-2018 Through 11-07-2018",
year = "2018",
doi = "10.1117/12.2506480",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Yidong Huang",
booktitle = "Tenth International Conference on Information Optics and Photonics",
address = "United States",
}