Brillouin optical time-domain analyzer with frequency shift keying probe

Xiaobin Hong; Sheng Wang; Xizi Sun; Jian Wu; Yan Li

doi:10.1117/1.OE.57.6.066103

6 June 2018 Brillouin optical time-domain analyzer with frequency shift keying probe

Xiaobin Hong, Sheng Wang, Xizi Sun, Jian Wu, Yan Li

Author Affiliations +

Optical Engineering, Vol. 57, Issue 6, 066103 (June 2018). https://doi.org/10.1117/1.OE.57.6.066103

Abstract

A Brillouin optical time-domain analysis (BOTDA) technique for enhancing the probe power to +5 dBm is proposed and demonstrated, which is based on a conventional dual sideband probe setup, but the probe waves are modulated by a frequency shift keying signal. The pump distortion is compensated in the time domain with this technique. By employing a 105-km sensing fiber, this technique is experimentally validated with 2-m spatial resolution. Furthermore, another experiment is designed to show the good tolerance for the sensing fibers combined with large Brillouin frequency shift (BFS) difference, as is demonstrated in a 50-km-long sensing fiber consisting of two segments with large BFS difference (200 MHz).

Citation Download Citation

Xiaobin Hong, Sheng Wang, Xizi Sun, Jian Wu, and Yan Li "Brillouin optical time-domain analyzer with frequency shift keying probe," Optical Engineering 57(6), 066103 (6 June 2018). https://doi.org/10.1117/1.OE.57.6.066103

Received: 28 December 2017; Accepted: 25 April 2018; Published: 6 June 2018

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