We report the fabrication of a highly nonlinear holey fiber made from pure silica with an effective area of just ~2.8µm2 at 1550nm. We believe this to be the smallest effective area yet measured for a holey fiber at 1550 nm. We also report the operation of a 2R regenerative optical switch based on just 3.3m of the fiber that is shown to have 30 times the nonlinear figure of merit of previous devices based on dispersion-shifted fiber
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