Optical excitation and characterization of gigahertz acoustic resonances in 
optical fiber tapers

Kang, Myeong Soo; Brenn, Andre; Wiederhecker, Gustavo S.; Russell, Philip St. J.

doi:10.1063/1.2995863

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Optical excitation and characterization of gigahertz acoustic resonances in optical fiber tapers

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Kang, Myeong Soo
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Brenn, Andre
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell, Philip St. J.
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Kang, M. S., Brenn, A., Wiederhecker, G. S., & Russell, P. S. J. (2008). Optical excitation and characterization of gigahertz acoustic resonances in optical fiber tapers. APPLIED PHYSICS LETTERS, 93(13): 131110. doi:10.1063/1.2995863.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6C6D-6

Abstract

Transverse acoustic resonances at gigahertz frequencies are excited by electrostriction in the few-micrometer-thick waists of low-loss optical fiber tapers of up to 40 cm long. A pump-probe technique is used in which the resonances are excited by a train of optical pulses and probed in a Sagnac interferometer. Strong radially symmetric acoustic resonances are observed and the dependence of their frequencies on taper thickness is investigated. Such easily reconfigurable acousto-optic interactions may have applications in the high-frequency mode locking of fiber lasers. (C) 2008 American Institute of Physics.