Realization of all optical logic gates using universal NAND gates on photonic crystal platform

In this paper, the design of all-optical logic gates using the combination of universal NAND gates has been proposed. The photonic crystal structure consists of triangular lattice arrangement of air holes in silicon. Initially, the all optical NAND gate has been designed and optimized. Further, the optimized NAND gates have been used and arranged in a combination such that the combined structure behaves as an all-optical logic gate specifically, NOT, AND, OR, XOR and XNOR. The truth table for the designed all-optical logic gates has been verified at an operating wavelength of 1.55 μm. The proposed all optical gates exhibit a response period of 2.168 ps with a bit rate of 0.461 Tb/sec. Further, the contrast ratio for the designed gates has also been obtained.

[1]  E. Awad,et al.  An all-optical AND gate using nonlinear transmission of electroabsorption modulator , 2001, CLEO 2001.

[2]  Lei Zhang,et al.  Proof of concept of directed OR/NOR and AND/NAND logic circuit consisting of two parallel microring resonators. , 2011, Optics letters.

[3]  H. Soto,et al.  All-optical AND gate implementation using cross-polarization modulation in a semiconductor optical amplifier , 2002, IEEE Photonics Technology Letters.

[4]  Tien-Tsorng Shih,et al.  New all-optical logic gates based on the local nonlinear Mach-Zehnder interferometer. , 2008, Optics express.

[5]  K L Hall,et al.  40-Gbitys cascadable all-optical logic with an ultrafast nonlinear interferometer. , 1996, Optics letters.

[6]  Ravindra Kumar Sinha,et al.  Realization of AND gate in Y shaped photonic crystal waveguide , 2013 .

[7]  Weiwei Zhu,et al.  Electro-optic directed logic circuit based on microring resonators for XOR/XNOR operations. , 2012, Optics express.

[8]  J. Goldhar,et al.  High-speed all-optical AND gate using nonlinear transmission of electroabsorption modulator , 2001, IEEE Photonics Technology Letters.

[9]  Patrice Féron,et al.  Integrated all-optical pulse restoration with coupled nonlinear microring resonators. , 2006, Optics letters.

[10]  Richard Soref,et al.  Reconfigurable optical directed-logic circuits using microresonator-based optical switches. , 2011, Optics express.

[11]  S. K. Tripathy,et al.  Implementation of optical logic gates using closed packed 2D-photonic crystal structure , 2012 .

[12]  Zhengbiao Ouyang,et al.  Compact and low-power optical logic NOT gate based on photonic crystal waveguides without optical amplifiers and nonlinear materials. , 2012, Applied optics.

[13]  Sang-Kook Han,et al.  10 Gbit/s all-optical composite logic gates with XOR, NOR, OR and NAND functions using SOA-MZI structures , 2006 .

[14]  K Amarnath,et al.  Photonic logic NOR gate based on two symmetric microring resonators. , 2004, Optics letters.

[15]  J. Sipe,et al.  All-optical AND gate by use of a Kerr nonlinear microresonator structure. , 2003, Optics letters.

[16]  D. Cotter,et al.  All-optical AND gate operating on 10 Gbit/s signals at the same wavelength using four-wave mixing in a semiconductor laser amplifier , 1995 .

[17]  Alistair James Poustie,et al.  All-optical binary half-adder , 1998 .

[18]  Ravindra Kumar Sinha,et al.  Design of all optical logic gates in photonic crystal waveguides , 2015 .