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Berlin 2001 – wissenschaftliches Programm

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Q: Quantenoptik

Q 10: Poster: Nonlinear Optics

Q 10.11: Poster

Dienstag, 3. April 2001, 12:30–15:00, AT2

The asymmetric fiber sgnac interferometer as a possibility of noise-reduction and puls-shaping in modern high bitrate telecommunication systems — •A. Wietfeld, M. Meißner, N. Korolkova, A. Sizmann, and G. Leuchs — Lehrstuhl für Optik,Friedrich Alexander Universität, 91058 Erlangen

In order to improve the capacity of optical fibre communication channels one has to study the effects limitineg the bitrate. These are amplifyer noise (Amplified Stimulated Emisson = ASE) and nonlinear effects. Both lead to fluctuations in the detected signal amplitude causing bit errors.
We show how an asymmetric fiber Sagnac interferometer can be used to achieve pulse shaping and amplifyer noise reduction within a fiber-optical high speed communication system in order to preserve the optical signal to noise ratio.

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