Pressure dependence of Brillouin frequency shift in bare silica optical fibers

• DOI: 10.3788/col201210.100604
• Publication Date: 2012-08-30T08:06:47Z
• Authors: Haidong Gu Haidon...; Huijuan Dong Huij...; Guangyu Zhang Gua...; Jun He Jun He; Ning Xu Ning Xu; Douglas. J. Brown...
• Keywords: Frequency shift; Brillouin zone

The effect of hydrostatic pressure (up to 28 MPa) on Brillouin frequency shift (BFS) within two types bare, single-mode fibers is studied via optical time domain analysis technique.Experimental results show a negative linear relation between and BFS, with almost the same sensitivity in both fibers.The average value experimental slopes -0.742MHz/MPa.This found be well suited theoretical basis data bulk silica glass previous reports.This preliminary evaluation may result new method for distributed sensing along fiber.