Advancements in Optical Interconnection and Optical Sensing: Emerging Technologies and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 1938

Special Issue Editors

School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
Interests: silicon photonics; optical interconnect; inverse design; metasurfaces
School of Science, Jiangnan University, Wuxi 214122, China
Interests: optical sensors; laser processing; nanophotonics; surface plasmon resonance sensors; nonlinear optics
School of Optoelectronic Engineering, Xidian University, Xi’an 710071, China
Interests: optics communications; silicon photonics; photonic inverse design

Special Issue Information

Dear Colleagues,

We are pleased to announce the forthcoming Special Issue on "Advancements in Optical Interconnection and Optical Sensing: Emerging Technologies and Applications." This Issue aims to provide a comprehensive view of the latest research on optical interconnection and sensing technologies, along with their diverse applications.

The topics of interest for this Special Issue include, but are not limited to, the following: optical switches, photonics information processing, lidars, optical phase arrays, artificial intelligence, optical neural networks, programmable photonic circuits, nanophotonics, photonics inverse design, surface plasmon resonance sensors, optical fiber sensors, as well as chemical, electrochemical, and biological sensors.

Researchers from academia and industry are invited to contribute to this Special Issue by submitting their latest research in the form of a full-text article or review. The aim of this Special Issue is to promote innovative and original research, and to advance the field of optical sensing and interconnection technologies, while exploring their integration with emerging technologies. In addition, we aim to highlight the latest advances in optical sensing and interconnect technology for biomedical applications.

We strongly encourage academics and practitioners who are working on the theoretical, experimental and applied aspects of optical sensing and interconnect technologies to contribute their research to provide a comprehensive view of the latest research in the field and its diverse applications. Through this Special Issue, we hope to provide a scholarly platform for researchers to share ideas, knowledge and perspectives on the latest advances in optical sensing and interconnect technology.

We eagerly await your valuable contributions, and hope that this Special Issue will make an important contribution to the existing knowledge base on this important topic.

Dr. Hao Jia
Dr. Jianjun Cao
Dr. Shanglin Yang
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. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • optical switches
  • photonics information processing
  • lidars
  • optical phase arrays
  • artificial intelligence
  • optical neural networks
  • programmable photonic circuits
  • nanophotonics
  • photonics inverse design
  • surface plasmon resonance sensors
  • optical fiber sensors
  • chemical, electrochemical, and biological sensors

Published Papers (2 papers)

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Research

12 pages, 7955 KiB  
Article
Compact SOI Dual-Mode (De)multiplexer Based on the Level Set Method
by Han Zheng, Shanglin Yang, Yue Yu and Lei Zhang
Appl. Sci. 2024, 14(1), 426; https://doi.org/10.3390/app14010426 - 03 Jan 2024
Viewed by 562
Abstract
Mode (de)multiplexer is an essential device in integrated multimode photonic systems. Here, we present a dual-mode (de)multiplexer that separates two input modes, TE0 and TE1, into two output ports while converting TE1 to TE0 mode. Based on the [...] Read more.
Mode (de)multiplexer is an essential device in integrated multimode photonic systems. Here, we present a dual-mode (de)multiplexer that separates two input modes, TE0 and TE1, into two output ports while converting TE1 to TE0 mode. Based on the adjoint and level set method, the device features a small footprint of 9.4 μm × 2.9 μm, and a minimum feature size over 200 nm is achieved, affirming stable and reliable fabrication. Through simulations, we observed insertion losses of less than 0.28 dB for TE0 mode and 0.35 dB for TE1 mode within the wavelength range of 1500–1600 nm, accompanied by crosstalk levels lower than −30 dB. In our experimental tests, we achieved insertion losses of less than 0.89 dB for TE0 mode and 0.44 dB for TE1 modes within the 1530 nm to 1570 nm range, with crosstalk maintained below −25 dB. Furthermore, we conducted an experimental verification of the differences between the standard device and the boundary dilation/erosion device, observing an insertion loss degradation by 0.61 dB within a deviation range of ±40 nm, which demonstrates the device’s robustness to the fabrication. The proposed devices exhibit exceptional performance and feature a compact structure, thus holding significant potential for the development of future multimode integrated photonic circuits. Full article
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11 pages, 8024 KiB  
Article
The Low-Loss Spot Size Converter for Alignment with Cleaved Single Mode Fiber
by Jinyang Zhao, Zhutian Wang, Nan Ye, Fufei Pang and Yingxiong Song
Appl. Sci. 2023, 13(14), 8157; https://doi.org/10.3390/app13148157 - 13 Jul 2023
Cited by 1 | Viewed by 1057
Abstract
Integrating the graded index (GRIN) waveguide with the 2-D inversely-tapered waveguide, a new design of spot size converter (SSC) has been proposed to couple the light beam between the cleaved single-mode fiber (SMF) and the silicon (Si) wire waveguide on the silicon-on-insulator (SOI) [...] Read more.
Integrating the graded index (GRIN) waveguide with the 2-D inversely-tapered waveguide, a new design of spot size converter (SSC) has been proposed to couple the light beam between the cleaved single-mode fiber (SMF) and the silicon (Si) wire waveguide on the silicon-on-insulator (SOI) platform. The device demonstrates a low coupling loss of 0.27 dB when it is coupled to a cleaved SMF. The polarization-dependent loss (PDL) is less than 0.25 dB, and the 1-dB alignment tolerance is about −2.0~2.0 µm for both vertical and horizontal directions. At the same time, the starting tip width of the tapered waveguide is kept at the level of the lithography limitation at the current commercial silicon photonics fab. This integrated SSC could be an improved design for reducing the coupling loss between the cleaved SMF and the Si waveguide. Full article
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