Abstract
Terpolymer of methyl methacrylate, 2,2,2-trifluoroethyl methacrylate, and benzyl methacrylate, that is known to eliminate intrinsic and photoelastic birefringence simultaneously, was adopted to compose a core of a multimode fiber. Polarization-maintaining property of this terpolymer-based fiber was characterized using mode-dependent extinction-ratio measurement and polarization-dependent near-field pattern. Unlike any conventional fiber-optic strain sensors, this terpolymer-based fiber was demonstrated for its capability in detecting strain vector in a use with a dichroic dye.
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