Silicon Photonics and Integrated Optics: Fundamentals and Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A:Physics".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1928

Special Issue Editors

School of Chips, XJTLU Entrepreneur College (Taicang), Xi’an Jiaotong-Liverpool University, Suzhou 215400, China
Interests: optical waveguides; silicon waveguides; metamaterials waveguides; SOA technologies
School of Chips, XJTLU Entrepreneur College (Taicang), Xi’an Jiaotong-Liverpool University, Suzhou 215400, China
Interests: neuromorphic devices; flexible sensors
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Special Issue Information

Dear Colleagues,

In photonic-integrated platforms, many of the optical and electrical components used to build a transceiver are packed into highly integrated chips known as photonics integrated circuits (PICs). Integrating all of the components into a single substrate reduces the cost of building the transceiver and decreases the power due to fewer coupling effects occurring between the discrete optical components.
Recently, silicon has been used as a basic element to make passive and active photonic devices owing to its high thermal and mechanical properties, stability, high quality, low loss, and large bandwidth extending from 1.1 to nearly 7 μm. On the other hand, owing to the high transparency of silicon in the infrared spectrum and the wide refractive index difference between silicon (~3.45) and silica (~1.46), silicon-on-insulator (SOI) waveguides exhibit unique optical features. Due to advancements in silicon electronic device fabrication, silicon photonic devices can now be made available by utilizing the same complementary metal-oxide semiconductor platform, especially with the help of mature SOI technology. The field of silicon waveguides is broad and multi-disciplinary in nature, drawing upon knowledge in fields ranging from, among others, physics; materials and devices; communications, signal processing, and information theory; neuroscience; quantum information science; linear and non-linear science; computing; and ultrafast science. Therefore, Micromachines requests manuscripts for submission in this Special Issue titled “Silicon Photonics and Integrated Optics: Fundamentals and Applications” in order to expand knowledge of this important area. Submissions focusing on advancing fundamental knowledge and techniques, as well as their applications in diverse areas ranging from communications to natural and biological sciences, are very welcome. The purpose of this Special Issue is to provide an overview of ongoing progress and trends related to the advancement of the knowledge, understanding, and novel applications of silicon photonics and integrated optics.

Dr. Amer Kotb
Dr. Qifeng Lu
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • silicon photonics
  • silicon chips
  • silicon technology
  • silicon-on-insulator waveguides
  • metal–insulator–metal waveguides
  • dielectric-loaded waveguides
  • nanowire waveguides
  • optical amplifiers
  • photonic crystal waveguides
  • computational photonics

Published Papers (1 paper)

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Research

12 pages, 19406 KiB  
Article
All-Optical XOR, AND, OR, NOT, NOR, NAND, and XNOR Logic Operations Based on M-Shaped Silicon Waveguides at 1.55 μm
by Amer Kotb, Kyriakos E. Zoiros and Wei Chen
Micromachines 2024, 15(3), 392; https://doi.org/10.3390/mi15030392 - 13 Mar 2024
Viewed by 1307
Abstract
Silicon waveguides are essential to integrated photonics, which is where optical and electronic components are coupled together on a single silicon chip. These waveguides allow for the integration of signal processing and optical transmission, which advances data centers, telecommunications, and other optical applications. [...] Read more.
Silicon waveguides are essential to integrated photonics, which is where optical and electronic components are coupled together on a single silicon chip. These waveguides allow for the integration of signal processing and optical transmission, which advances data centers, telecommunications, and other optical applications. Thus, our study involves the simulation of essential all-optical logic operations, namely XOR, AND, OR, NOT, NOR, NAND, and XNOR, and utilizes M-shaped silicon optical waveguides at a wavelength of 1.55 μm. This simulation is conducted through Lumerical FDTD solutions. The suggested waveguide comprises four identical slots, configured in the shape of the letter ‘M’, and all of which are formed of core silicon and silica cladding. These logic operations work based on constructive and destructive interferences that are caused by phase changes in the input optical beams. The contrast ratio (CR) is employed to quantitatively and comparatively assess the degree to which the target logic operations are efficiently executed. The simulation results indicate that, compared to other reported designs, the considered logic functions constructed using the proposed waveguide can be implemented with higher CRs. The outcomes of this paper can be utilized regarding the implementation of optoelectronic combinational logic circuits of enhanced functionality. Full article
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