Stimulated Brillouin scattering and its dependences on strain and temperature in a high-delta optical fiber with F-doped depressed inner cladding.
Stimulated Brillouin scattering (SBS) in a high-delta fiber with F-doped depressed inner cladding is studied through considering the interaction of acoustic and optical modes in the fiber. It is found that the number of acoustic modes in the fiber is reduced and the frequency spacing between neighboring modes is enlarged because of the F doping. The dependences of SBS on strain and temperature are measured and compared for each acoustic mode to investigate the feasibility of discriminative sensing of strain and temperature by use of the fiber.
Zou
Weiwen
W
Department of Electronic Engineering, University of Tokyo, Japan. zou@sagnac.t.u.-tokyo.ac.jp
He
Zuyuan
Z
Kishi
Masato
M
Hotate
Kazuo
K