Excitation of cladding modes in photonic crystal fibers by flexural acoustic waves

We report the excitation by flexural acoustic waves of an individual cladding mode in a single-mode photonic crystal fiber. The propagation constant and the field distributions of the mode have been investigated by use of this technique. The results give the basis for developing a family of acousto-optic devices based on photonic crystal fibers. (C) 2000 Optical Society of America. OCIS codes: 060.0060, 060.2340, 060.2270.