An all-optical scheme of signed digit binary addition based on optical non-linear material
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    Abstract:

    We propose a new integrated method which covers addition of any two signed digit numbers in all-optical domain. Toimplement this scheme we have exploited some photo-refractive characters of optical non-linear materials, which mayexperience 0.1-0.2 dB attenuation loss as silica is used as non-linear medium. Moreover, the attenuation loss may bereduced to 0.001 dB/m if we consider the use of slow light at 1.56 um.

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Kuladeep Roy Chowdhury, Sourangshu Mukhopadhyay. An all-optical scheme of signed digit binary addition based on optical non-linear material[J]. Optoelectronics Letters,2008,4(6):447-451

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