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Photonics
Special Issues
Advanced Optoelectronic Systems
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Advanced Optoelectronic Systems

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optoelectronics and Optical Materials".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 496

Special Issue Editors

Dr. Jingfei Ye

E-Mail Website
Guest Editor
School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
Interests: optoelectronic system design and integration; beam manipulation with freeform optics; metalens design
Special Issues, Collections and Topics in MDPI journals
Dr. Jun Yu

E-Mail Website
Guest Editor
Institute of Precision Optic Engineering, School of Physics, Science, and Engineering, Tongji University, No. 1239 Siping Road, Shanghai 200092, China
Interests: optical system design; ultra-precision fabrication and measurement; optoelectronic system integration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Advanced optoelectronic systems are an essential and fascinating field situated at the intersection of optics, electronics, and material science. Research in this field involves the study, design, and application of devices and systems for acquiring information from the world around us. With developments in manufacturing and artificial intelligence technology, high-performance, ultra-compact, and intelligent optoelectronic systems have become more prominent in modern optical engineering.

For this Special Issue, “Advanced Optoelectronic Systems”, we invite you to contribute your cutting-edge research in this field. Topics of interest include but are not limited to the following:

  1. Computational optoelectronic system design;
  2. Optoelectronic system design with AI;
  3. Optical system design with metalens;
  4. Optoelectronic system for sensing;
  5. Adaptive optoelectronic system;
  6. Multispectral detection optoelectronic system.

We look forward to receiving your contributions.

Dr. Jingfei Ye
Dr. Jun Yu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

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. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • computational optoelectronic systems
  • artificial intelligent design for optoelectronic systems
  • micro/nano optoelectronic systems
  • novel applications with optoelectronic systems

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Published Papers (1 paper)

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Research

23 pages, 4673 KB  
Article
Mode-Selective Integrated Optical Waveguide for OTTD Systems: Intrinsic Mode Analysis and Wavelength-Dependent Transmission Optimization
by Ting An, Limin Liu, Yafeng Meng, Sai Zhu, Chunhui Han and Yunfeng Jiang
Photonics 2026, 13(3), 239; https://doi.org/10.3390/photonics13030239 - 28 Feb 2026
Viewed by 326
Abstract
Traditional electronic phased array radars are constrained by electronic bottlenecks, resulting in inherent limitations including large form factor, fixed operational parameters, and narrow instantaneous bandwidth, which fail to meet the stringent requirements of next-generation high-performance radar systems. Optical true time delay (OTTD) technology [...] Read more.
Traditional electronic phased array radars are constrained by electronic bottlenecks, resulting in inherent limitations including large form factor, fixed operational parameters, and narrow instantaneous bandwidth, which fail to meet the stringent requirements of next-generation high-performance radar systems. Optical true time delay (OTTD) technology based on integrated optical waveguides emerges as a core solution for realizing broadband, compact optically controlled beamforming systems. Traditional silicon-based waveguides suffer from severe mode competition (delay jitter > ±0.05 ps), energy leakage (transmission loss > 0.5 dB/cm) and large beamforming angle fluctuation (>0.3°) in OTTD systems, failing to meet the picosecond-level delay accuracy and broadband beam squint-free requirements of next-generation phased array radars. Thus, a customized mode-selective waveguide design for OTTD systems is urgently required. To address these critical challenges, this study proposes an OTTD-customized mode-selective integrated optical waveguide design tailored for OTTD systems, with three distinct innovations: (1) A systematic OTTD-oriented mode classification and selection methodology is established—instead of a conventional single-mode design, the fundamental TE0 mode is identified as the optimal operating mode through Finite-Difference Time-Domain (FDTD) simulation, (95% TE polarization fraction and 2.0553 effective refractive index at 1548.39 nm, which cannot be achieved by other guided modes for OTTD applications). (2) The wavelength-dependent transmission characteristics of the TE0 mode are quantitatively characterized, revealing a linear correlation between the effective refractive index (2.05–2.10) and wavelength (1500–1550 nm), alongside a controllable group delay range of 1.4315–1.4395 ps—this precise linear model fills the gap of lacking OTTD-specialized delay calibration theory in conventional waveguide research. (3) An OTTD-optimized practical mode selection criterion for OTTD applications is proposed by modifying the standard guided-vs-leaky condition for asymmetric waveguides: the effective refractive index of the operating mode must exceed the substrate refractive index with a fabrication tolerance margin (neff > 1.44 ± 0.02 for SiO2 substrate) to mitigate leakage and adapt to OTTD picosecond-level delay precision. This criterion is validated through system-level beamforming experiments (rather than only device-level simulation), and the designed waveguide achieves a mode suppression ratio (MSR) of >30 dB for leakage modes and a transmission loss of <0.2 dB/cm, which is significantly superior to conventional single-mode waveguides in OTTD systems. Experimental results indicate that the angle fluctuation of the beamforming system is less than 0.08°, which is significantly superior to the 0.3° fluctuation observed in traditional silicon waveguide OTTD systems. This work provides a technical solution for improving the performance of optical phased array radar and laser radar and has broad engineering application prospects in microwave photonics and optical communication fields. Full article
(This article belongs to the Special Issue Advanced Optoelectronic Systems)
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