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Micromachines
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Integrated Photonics and Optoelectronics, 2nd Edition
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Integrated Photonics and Optoelectronics, 2nd Edition

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

Deadline for manuscript submissions: 28 February 2025 | Viewed by 7662

Special Issue Editor

Dr. He Yang

E-Mail Website
Guest Editor
School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China
Interests: chip-integrated optoelectronic devices; nanowire photonics; nonlinear optics; all-optical computing; optical logic gates; micro- and nanofabrication process; MEMS sensors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Integrated photonic and optoelectronic technologies have become powerful tools driving the development of much smaller devices with lower power consumption, greater functionality and that are more highly integrated. With the development of advanced materials and nanofabrication techniques, the last two decades have witnessed tremendous progress in integrated photonic and optoelectronic devices, such as graphene-based ultrafast optical detectors, Si-based ultra-low-loss waveguides, Brillouin integrated lasers, lithium-niobite-film integrated high-speed modulators, coupled with the emerging areas of artificial intelligence and quantum computing. Thus, this Special Issue, to be published in Micromachines, aims to present the original state-of-the-art research papers and review articles on the topic of active and passive integrated photonic and optoelectronic devices, design and simulation methods for integration processes, micro- and nanofabrication techniques, and the related advanced functional nanomaterials in integrated devices.

Dr. He Yang
Guest Editor

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 100 words) can be sent to the Editorial Office for announcement on this website.

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.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 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

  • active and passive photonic devices
  • nanoscale optical modulators and photodetectors
  • chip integrated single photon generation and detection
  • photonic interfaced hybrid quantum systems
  • photonic computing and photonic quantum computing
  • advanced nanomaterial for photonic structure
  • on chip mid-IR photonics
  • micro- and nanofabrication techniques

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Related Special Issue

Published Papers (3 papers)

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Research

13 pages, 4064 KiB  
Article
The Simulation of Mode Control for a Photonic Lantern Adaptive Amplifier
by Yuxuan Ze, Pengfei Liu, Hanwei Zhang, Yanyang Hu, Lianchuang Ding, Baozhu Yan, Jiangbin Zhang, Qiong Zhou and Wenguang Liu
Micromachines 2024, 15(11), 1342; https://doi.org/10.3390/mi15111342 - 31 Oct 2024
Viewed by 603
Abstract
A photonic lantern is a low-loss device that connects a single multimode waveguide to multiple single-mode waveguides and can enhance the beam quality of a fiber laser by adaptively controlling the optical parameters (amplitude, phase, polarization) at the input. In this work, we [...] Read more.
A photonic lantern is a low-loss device that connects a single multimode waveguide to multiple single-mode waveguides and can enhance the beam quality of a fiber laser by adaptively controlling the optical parameters (amplitude, phase, polarization) at the input. In this work, we combined the gains and losses of individual modes within the fiber amplifier and introduced a mode content parameter at the amplifier’s output as an evaluation function to simulate mode control effects. Mode competition within the gain fiber can degrade the control effect of the fundamental mode and lead to it taking a longer time for the control to converge. Optimal parameters, such as the gain fiber length and pumping method, were identified to improve control effectiveness. Specifically, an optimal gain fiber length of 8 m was determined, and backward pumping was found to achieve higher pumping efficiency and better control results. The system demonstrated significant power amplification potential and could stabilize mode control under different pumping powers ranging from 50 W to 5 kW. In conclusion, our research demonstrates that an adaptive fiber amplifier based on a photonic lantern can achieve a stable, high-power, large-mode-field, near-fundamental-mode output from the gain fiber. Although mode competition within the gain fiber can degrade the control effect of the fundamental mode and cause the control to take a longer time to converge, these aspects should be further studied to improve the control’s effectiveness. These findings contribute to the development of advanced simulation models that guide high-power mode control experiments and deepen our understanding of physical processes in science and technology. Full article
(This article belongs to the Special Issue Integrated Photonics and Optoelectronics, 2nd Edition)
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13 pages, 16639 KiB  
Article
Multi-Wavelength Narrow-Spacing Laser Frequency Stabilization Technology Based on Fabry-Perot Etalon
by Ju Wang, Ye Gao, Jinlong Yu, Hao Luo, Xuemin Su, Shiyu Zhang, Ruize Zhang and Chuang Ma
Micromachines 2024, 15(10), 1269; https://doi.org/10.3390/mi15101269 - 18 Oct 2024
Viewed by 770
Abstract
Classical frequency-stabilized lasers have achieved high-frequency stability and reproducibility; however, their extensive wavelength spacing limits their utility in various scenarios. This study introduces a novel frequency-stabilized laser scheme that integrates a Fabry-Perot etalon (FPE) with digital control technology and wavelength modulation techniques. The [...] Read more.
Classical frequency-stabilized lasers have achieved high-frequency stability and reproducibility; however, their extensive wavelength spacing limits their utility in various scenarios. This study introduces a novel frequency-stabilized laser scheme that integrates a Fabry-Perot etalon (FPE) with digital control technology and wavelength modulation techniques. The FPE, characterized by multiple transmission peaks at minimal frequency intervals, provides stable frequency references for different lasers, thereby enhancing the system’s flexibility and adaptability. An error signal is derived from the first-order differentiation of the FPE’s transmission curve. A 180° phase difference was observed in the feedback output signal when the laser’s central frequency diverged from the reference, determining that the direction of the frequency control was accordingly determined.Employing feedback control, the laser’s output frequency is stabilized at the transmission peak frequency of the FPE. Experimental results demonstrate that this stabilization scheme effectively locks the laser’s output wavelength to different transmission peak frequencies of the FPE, achieving 25 GHz wavelength spacing. The frequency stability is improved by two orders of magnitude on a second-level timescale, maintained within hundreds of kHz, equating to a frequency stability level of 10−10. Full article
(This article belongs to the Special Issue Integrated Photonics and Optoelectronics, 2nd Edition)
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10 pages, 1752 KiB  
Article
Multifunctional Meta-Devices for Full-Polarization Rotation and Focusing in the Near-Infrared
by Hengyi Wan, Kai Ou, Hui Yang and Zeyong Wei
Micromachines 2024, 15(6), 710; https://doi.org/10.3390/mi15060710 - 28 May 2024
Viewed by 3248
Abstract
The creation of multi-channel focused beams with arbitrary polarization states and their corresponding optical torques finds effective applications in the field of optical manipulation at the micro-nanoscale. The existing metasurface-based technologies for polarization rotation have made some progress, but they have been limited [...] Read more.
The creation of multi-channel focused beams with arbitrary polarization states and their corresponding optical torques finds effective applications in the field of optical manipulation at the micro-nanoscale. The existing metasurface-based technologies for polarization rotation have made some progress, but they have been limited to single functions and have not yet achieved the generation of full polarization. In this work, we propose a multi-channel and spatial-multiplexing interference strategy for the generation of multi-channel focusing beams with arbitrary polarization rotation based on all-dielectric birefringent metasurfaces via simultaneously regulating the propagation phase and the geometric phase and independently controlling the wavefronts at different circular polarizations. For the proof of concept, we demonstrate highly efficient multi-channel polarization rotation meta-devices. The meta-devices demonstrate ultra-high polarization extinction ratios and high focusing efficiencies at each polarization channel. Our work provides a compact and versatile wavefront-shaping methodology for full-polarization control, paving a new path for planar multifunctional meta-optical devices in optical manipulation at micro–nano dimensions. Full article
(This article belongs to the Special Issue Integrated Photonics and Optoelectronics, 2nd Edition)
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