Abstract

We experimentally investigate guided acoustic wave Brillouin scattering in several photonic crystal fibers by use of the so-called fiber loop mirror technique and show a completely different dynamics with respect to standard all-silica fibers. In addition to the suppression of most acoustic phonons, we show that forward Brillouin scattering in photonic crystal fibers is substantially enhanced only for the fundamental acoustic phonon because of efficient transverse acousto-optic field overlap. The results of our numerical simulations reveal that this high-frequency phonon is indeed trapped within the fiber core by the air-hole microstructure, in good agreement with experimental measurements.

© 2006 Optical Society of America

Depolarized guided acoustic wave Brillouin scattering in hollow-core photonic crystal fibers

Wenjia Elser née Zhong, Birgit Stiller, Dominique Elser, Bettina Heim, Christoph Marquardt, and Gerd Leuchs
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Raman-like light scattering from acoustic phonons in photonic crystal fiber

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Surface Brillouin scattering in photonic crystal fibers

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Frequency-selective excitation of guided acoustic modes in a photonic crystal fiber

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