Abstract

We have devised an all-fiber bell state analyzer as the element necessary for realizing experiments on quantum state teleportation, entanglement swapping and experiments towards quantum computation with photons. The advantage of using fiber optic components over free space components is the confinement of the photons in the fiber. A first experiment on entanglement swapping using the all-fiber bell state analyzer has shown a high visibility. Next steps will include the realization of a more complete bell state analyzer, which will allow to identify two of the four bell states for controlling a very fast polarization modulator in order to achieve more efficient teleportation as well as first steps towards quantum computation with linear elements.

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