Improving performance of phase shift pulse BOTDR

IEICE Electronics Express

Lunider Paiva Elias¹  Ryutaro Shibata¹  Hirofumi Kasahara¹  Tsuneo Horiguchi¹ 

[1] Graduate School of Engineering and Science, Shibaura Institute of Technology

关键词: BOTDR;    spontaneous Brillouin scattering;    distributed fiber sensors;   

DOI  :  10.1587/elex.14.20170267

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

We propose a phase shift pulse BOTDR (PSP-BOTDR) using probes composed of long and short pulses with phase shift keying modulation, and evaluate its performance by experiment and simulation. Modifying the previous probe configuration reduces signal leakage from the adjacent section to a negligible extent, and achieves truely a spatial resolution of 20 cm.

【 授权许可】

CC BY