Abstract
Four-Wave-Mixing (FWM), or sometimes four-photon-mixing (FPM), describes a nonlinear optical effect at which four waves or photons interact with each other due to the third order nonlinearity of the material. As a result, new waves with sum and difference frequencies are generated during the propagation in the waveguide. FWM is comparable to the so called intermodulation in electrical communication systems. This effect was already mentioned in the introduction of this book. The intermodulation, as well as the FWM, leads to noise in the neighboring channels which degrades the system performance. For WDM systems in dispersion-shifted fibers, FWM is the most important nonlinear effect.
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© 2004 Springer-Verlag Berlin Heidelberg
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Schneider, T. (2004). Four-Wave-Mixing (FWM). In: Nonlinear Optics in Telecommunications. Advanced Texts in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-08996-5_7
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DOI: https://doi.org/10.1007/978-3-662-08996-5_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-05772-4
Online ISBN: 978-3-662-08996-5
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