Abstract

We present what we believe to be the first experimental results on resonant amplification of Berry’s phase/geometrical phase. A small-signal magnification factor of 6 was obtained using a 50–50 fiber-optic coupler to construct a ring resonator containing a three-dimensional fiber helix. This enhancement can be exploited when Berry’s phase is used in fiber-optic and other sensors or as a means for performing quantum computation.

© 2010 Optical Society of America

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