Title :
Tensile strain dependence of Brillouin frequency shift in silica optical fibers
Author :
Horiguchi, Tsuneo ; Kurashima, Toshio ; Tateda, Mitsuhiro
Author_Institution :
Trans. Syst. Lab., NTT, Ibaraki, Japan
fDate :
5/1/1989 12:00:00 AM
Abstract :
Brillouin frequency shift in a single-mode optical fiber has been measured as a function of tensile strain. The strain coefficient of normalized Brillouin frequency shift C identical to (dv/sub B//d epsilon )/v/sub B/ is found to be 4.4 for silica fibers. This result shows the potential of Brillouin spectroscopy to evaluate tensile strain in the fiber with the strain resolution of about 2*10/sup -4/. The origin of the large strain coefficient is discussed.<>
Keywords :
optical fibres; piezo-optical effects; silicon compounds; stimulated Brillouin scattering; tensile testing; Brillouin frequency shift; Brillouin spectroscopy; SiO/sub 2/; single-mode optical fiber; stimulated Brillouin scattering; strain coefficient; strain resolution; tensile strain dependence; Brillouin scattering; Capacitive sensors; Frequency measurement; Optical fiber testing; Optical fibers; Probes; Pump lasers; Silicon compounds; Strain measurement; Tensile strain;
Journal_Title :
Photonics Technology Letters, IEEE
