Author： Kibria Refat Austin Michael W.
Publisher： MDPI
E-ISSN： 2304-6732|2|1|200-213
ISSN： 2304-6732
Source： Photonics, Vol.2, Iss.1, 2015-02, pp. : 200-213
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Abstract
Four Wave Mixing (FWM) based optical signal-processing techniques are reviewed. The use of FWM in arithmetical operation like subtraction, wavelength conversion and pattern recognition are three key parts discussed in this paper after a brief introduction on FWM and its comparison with other nonlinear mixings. Two different approaches to achieve correlation are discussed, as well as a novel technique to realize all optical subtraction of two optical signals.
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