Improvement of pulse shape on Brillouin optical time domain reflectometry

Yunqi Hao; Qing Ye; Zhengqing Pan; Haiwen Cai; Ronghui Qu

doi:10.1117/12.966336

7 November 2012 Improvement of pulse shape on Brillouin optical time domain reflectometry

Yunqi Hao, Qing Ye, Zhengqing Pan, Haiwen Cai, Ronghui Qu

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84219E (2012) https://doi.org/10.1117/12.966336
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

The signal noise ratio (SNR) enhancement of spontaneous Brillouin scattering spectrum on Brilloluin optical time domain reflectometry (BOTDR) sensing system have been demonstrated experimentally through changing the pulse shape. With the same pulse width, the SNRs of the coherent detection power spectrum for trapezoidal pulse and triangular pulse increase relative to that of rectangular pulse. The sensing distances are also increased. This will be helpful to improve the spatial resolution or achieve longer sensing distance in the BOTDR sensing system.

Citation Download Citation

Yunqi Hao, Qing Ye, Zhengqing Pan, Haiwen Cai, and Ronghui Qu "Improvement of pulse shape on Brillouin optical time domain reflectometry", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84219E (7 November 2012); https://doi.org/10.1117/12.966336

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