Abstract
Thanks to a double-frequency phase modulation scheme, we report a vector Brillouin optical time-domain analyzer (BOTDA). This BOTDA has a high immunity level to noise, and it features a phase spectrogram capability. It is well suited for complex situations involving several acoustic resonances, such as high-order longitudinal modes. It has notably been used to characterize a dispersion-shifted fiber, allowing us to report spectrograms with multiple acoustic resonances. A very high dynamic range is also reported for 100-ns-long pulses simultaneously with a numerical resolution.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
Nan Guo, Xianting Zhang, Chao Jin, Zhiyong Zhao, Liang Wang, Hwa-Yaw Tam, and Chao Lu
Opt. Express 26(26) 33993-34001 (2018)
Jian Fang, Pengbai Xu, Yongkang Dong, and William Shieh
Opt. Express 25(13) 15188-15198 (2017)
Jingdong Zhang, Hua Zheng, Haoting Wu, Nan Guo, Guolu Yin, and Tao Zhu
Opt. Express 28(20) 28831-28842 (2020)