Proposal for realizing an all-optical half adder based on photonic crystals

被引：91
作者：
Serajmohammadi, Somaye [1 ]
Alipour-Banaei, Hamed [2 ]
Mehdizadeh, Farhad [3 ]
机构：
[1] Islamic Azad Univ, Ardabil Branch, Dept Elect Engn, Ardebil, Iran
[2] Islamic Azad Univ, Tabriz Branch, Dept Elect, Tabriz, Iran
[3] Islamic Azad Univ, Urmia Branch, Young Researchers & Elite Club, Orumiyeh, Iran
来源：
APPLIED OPTICS | 2018年 / 57卷 / 07期
关键词：
BAND-GAP; GATE; DESIGN; NOR; REALIZATION;
D O I：
10.1364/AO.57.001617
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we aim to propose an optical structure for realizing half-adder operation without using the nonlinear Kerr effect. Constructive and destructive interference of optical beams is the main working mechanism of the proposed structure. The phase difference required for the destructive interface will be created by choosing different lengths for the input waveguides of the XOR gate. For the proposed structure, the on-off contrast ratios for SUM and CARRY are 9.77 dB and 6.98 dB, respectively. Also, the delay time and footprint of the proposed structure are about 4 ps and 1056 mu m(2), respectively. (C) 2018 Optical Society of America
引用
收藏
页码：1617 / 1621
页数：5
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