Design of Photonic Crystal All-Optical Analog-to-Digital Using Nonlinear Kerr Effect

IF 1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Negar Esmaeili, Fariborz Parandin, Mohammad S. Feali, Farzin Shama
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引用次数: 0

Abstract

This study presents an innovative approach to the design of an optical analog-to-digital converter (OADC) that employs square nonlinear ring resonators. The configuration consists of dielectric silicon rods alongside nonlinear rods fabricated from doped glass, utilizing the Kerr optical effect to realize the intended operational capabilities. The proposed architecture incorporates a nonlinear three-channel demultiplexer along with an optical encoder. The nonlinear demultiplexer transforms the continuous input signal into three distinct quantized levels, while the optical encoder produces two-bit binary codes corresponding to the demultiplexer's output channel. The performance of this optical analog-to-digital converter (OADC) has been evaluated through plane wave expansion (PWE) and finite difference time domain (FDTD) methodologies. Results demonstrate that the OADC exhibits a compact footprint of 324 µm² and achieves a sampling rate of 125 GS/s, significantly exceeding the capabilities of traditional analog-to-digital converter designs.

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来源期刊
Microwave and Optical Technology Letters
Microwave and Optical Technology Letters 工程技术-工程:电子与电气
CiteScore
3.40
自引率
20.00%
发文量
371
审稿时长
4.3 months
期刊介绍: Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication
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