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Two-Dimensional Discrete Cavity Solitons: Switching and All-Optical Gates

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3 Author(s)
Aghdami, K.M. ; Res. Inst. for Appl. Phys. & Astron., Univ. of Tabriz, Tabriz, Iran ; Golshani, M. ; Kheradmand, R.

Light propagation in a 2-D array of coupled optical cavities with Kerr nonlinearity driven by a plane holding beam is numerically studied. Optical bistability together with its modulational instability (MI) are investigated, and 2-D discrete cavity solitons are simulated. These simulations revealed the switching on/off of the solitons along with the ability of a proper Gaussian beam (GB) to control their positions. Soliton-soliton and soliton-GB interactions are considered, and finally, all-optical NOR , XNOR, and NAND gates are proposed as realized by this device.

Published in:

Photonics Journal, IEEE  (Volume:4 ,  Issue: 4 )