Photonic Crystal-Based All-Optical Half Adder with High Contrast Ratio

被引：8

作者：

Pathak P. ^{[1
]}

Zafar R. ^{[1
]}

Kanungo V. ^{[3
]}

Vyas S. ^{[2
]}

机构：

[1] Department of Electronics and Communication Engineering, Swami Keshvanand Institute of Technology, Management and Gramothan, Malviya Nagar, Jaipur, Rajasthan

[2] Jaipur Engineering Research Centre, Jaipur, Rajasthan

[3] Department of Computer Science Engineering, Swami Keshvanand Institute of Technology, Management and Gramothan, Malviya Nagar, Jaipur, Rajasthan

来源：

Journal of Optical Communications | 2023年 / 44卷 / s1期

关键词：

contrast ratio; Half Adder; photonic band-gap; photonic crystal;

D O I：

10.1515/joc-2019-0245

中图分类号：

学科分类号：

摘要：

Photonic crystal waveguides provide a way to manipulate the performance of an optical signal in an ultra-small volume and are quite viable in designing chip-based components that will work all-optically. Here, in this article an all-optical half adder is proposed. It is based on a square lattice photonic crystal waveguide in which silicon rods are arranged periodically. The photonic crystal offers a wide photonic band-gap in the desired region of telecommunication wavelength i. e. near λ = 1550 nm. The performance of half Adder is measured using the contrast ratio and response time. The contrast ratio for sum and carry is 5.2 dB and 16.7 dB, respectively. The proposed half adder is miniaturized in size and having a footprint of 49 μm2 only. The total response time of the proposed adder is 1.4 picoseconds only. So, the device offers a high bit rate of 0.714 Tb/sec. The proposed half adder is an optimum choice for its application in on-chip optical integrated circuits. © 2020 Walter de Gruyter GmbH, Berlin/Boston 2020.

引用

共 50 条

[1] Photonic crystal based all-optical half adder: a brief analysis
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[9] All-optical half adder based on non-linear triangular lattice photonic crystals with improved contrast ratio
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