  We demonstrate a miniature, fiber-coupled optical tweezer to trap a single
atom. The same fiber is used to trap a single atom and to read out its
fluorescence. To obtain a low background level, the tweezer light is chopped,
and we measure the influence of the chopping frequency on the atom's lifetime.
We use the single atom as a single-photon source at 780 nm and measure the
second-order correlation function of the emitted photons. Because of its
miniature, robust, fiber-pigtailed design, this tweezer can be implemented in a
broad range of experiments where single atoms are used as a resource.
