Strain dependence of Brillouin frequency, intensity, and bandwidth in polarization-maintaining fibers.
The strain dependence of the Brillouin gain-loss spectrum for PANDA, bow-tie, and tiger polarization-maintaining fibers has been studied in the range 0 to 50 degrees C. We found a linear relationship between the strain and the Brillouin frequency, intensity, and bandwidth for PANDA and bow-tie fibers. For PANDA fiber at 20-cm spatial resolution, Brillouin frequency gives 7-micro epsilon uncertainty, which is the highest accuracy among three parameters, whereas the Brillouin bandwidth gives 19-micro epsilon uncertainty.
Fiber Optics Group, Department of Physics, University of Ottawa, Ottawa, Ontario, Canada. qinrong_yu@yahoo.ca
Qinrong
Q
Yu
Xiaoyi
X
Bao
Liang
L
Chen