Title :
Design and optimization of all-optical AND and NOR logic gates in a two-dimensional photonic crystal for binary-phase-shift-keyed signals
Author :
Yuxi Lin ; Chunrong Tang ; Hongxi Yin ; Yang Hao ; Chenguang Wu
Author_Institution :
Lab. of Opt. Commun. & Photonic Technol., Dalian Univ. of Technol., Dalian, China
Abstract :
In the article, a combination by two all-optical XOR/XNOR logic gates using photonic crystal for binary-phase-shift-keyed (BPSK) signals and a photonic crystal all-optical AND logic gate for intensity modulation signals is proposed. The novel AND and NOR logic gates for BPSK signals are realized. Finite-difference-time-domain (FDTD) scheme is applied. The numerical results indicate that contrast specific value of logic 1 and logic 0 logic-levels is more than 21dB for AND operation and 19dB for NOR operation over the C-band (1530-1565nm).
Keywords :
finite difference time-domain analysis; logic gates; optical design techniques; optical information processing; optical logic; optical modulation; optical phase shifters; optimisation; phase shift keying; photonic crystals; FDTD scheme; all-optical AND logic gate design; all-optical AND logic gate optimization; all-optical NOR logic gate design; all-optical NOR logic gate optimization; binary-phase-shift-keyed signals; finite-difference-time-domain scheme; intensity modulation signals; two-dimensional photonic crystal; wavelength 1530 nm to 1565 nm; Binary phase shift keying; High-speed optical techniques; Intensity modulation; Logic gates; Optical fiber communication; Optical waveguides; Photonic crystals; All-optical signal processing; Intensity modulation; Multimode interference; Photonic crystal;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2014 7th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4799-5837-5
DOI :
10.1109/BMEI.2014.7002912
