Article
Materials Science, Multidisciplinary
L. Huang, B. Dong, Z. G. Yu, J. Zhou, Y. Ma, Y-W Zhang, C. Lee, K-W Ang
Summary: The study has realized a hybrid integration of mid-infrared black phosphorus modulator on silicon photonics waveguide, enabling efficient optical modulation by tuning the anisotropic absorption through gating effect. The integrated waveguide design promotes light-BP interaction and achieves high-performance optical modulation, demonstrating a versatile platform for compact on-chip mid-infrared optoelectronic devices.
MATERIALS TODAY ADVANCES
(2021)
Review
Nanoscience & Nanotechnology
Thomas Ferreira de Lima, Eli A. Doris, Simon Bilodeau, Weipeng Zhang, Aashu Jha, Hsuan-Tung Peng, Eric C. Blow, Chaoran Huang, Alexander N. Tait, Bhavin J. Shastri, Paul R. Prucnal
Summary: This paper introduces neuromorphic photonic processors based on resonator weight banks, which are emerging candidate technology for enabling modern artificial intelligence in high speed analog systems. These purpose-built analog devices leverage the physics of resonator devices to implement vector multiplications, offering efficiency, latency, and throughput advantages over equivalent electronic circuits. However, the challenges of compensation for fabrication variations and environmental disturbances need to be addressed through automated design and control methodologies for practical deployment.
Review
Chemistry, Multidisciplinary
Jingya Xie, Wangcheng Ye, Linjie Zhou, Xuguang Guo, Xiaofei Zang, Lin Chen, Yiming Zhu
Summary: In the past few decades, terahertz (THz) technologies have been greatly enhanced and investigated due to possible opportunities in various applications. Photonics plays a key role in the generation, modulation, and detection of THz waves, while researchers are exploring ways to use silicon photonics for THz applications. Challenges remain in high-quality hybrid silicon lasers, conversion efficiency, device integration, and fabrication for THz integrated systems.
Article
Engineering, Electrical & Electronic
Yamato Misugi, Hideaki Okayama, Tomohiro Kita
Summary: In this study, a passive beam scanner was proposed to achieve two-dimensional beam scanning through wavelength sweep of a laser light. A 64-channel passive optical phased array and a hybrid wavelength-tunable laser diode were integrated into a combined chip, with a device size of 5mm x 1.5mm and power consumption of 49.3 mW. Compared with previous devices, it was nine times smaller in size and had a total power consumption of only tens of milliwatts. This device has lower power consumption and achieves fully integrated light detection and ranging.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
K. Kinjalk, A. Gilbert, A. Remis, Z. Loghmari, L. Cerutti, G. Patriarche, M. Bahriz, R. Teissier, A. N. Baranov, J. B. Rodriguez, E. Tournie
Summary: Silicon photonics can greatly influence the development of mid-IR photonics by utilizing existing fabrication technologies for microelectronic integrated circuits. Germanium is a promising material for extending the operating wavelength of photonic integrated circuits beyond 8μm. In this study, QCLs based on InAs were directly grown on germanium, demonstrating low threshold current densities.
Article
Optics
Geun Ho Ahn, Alexander D. White, Hyungjin Kim, Naoki Higashitarumizu, Felix M. Mayor, Jason F. Herrmann, Wentao Jiang, Kevin K. S. Multani, Amir H. Safavi-Naeini, Ali Javey, Jelena Vuckovic
Summary: Many attractive photonics platforms lack integrated photodetectors due to material incompatibilities and lack of process scalability. This research shows that tellurium can be evaporated onto photonic chips using a thermal evaporation and deposition technique, resulting in air-stable, high-speed, ultrawide-band photodetectors. These photodetectors demonstrate detection from visible to short-wave infrared, a bandwidth of over 40 GHz, and platform-independent scalable integration with various photonic structures.
Review
Physics, Multidisciplinary
Lorenzo Pavesi
Summary: Silicon Photonics, a technology proposed almost 30 years ago, has gone through several stages of development, from addressing the lack of a silicon laser to exploring novel features of photons in different systems, and then to exploring microring resonators and their applications in integrated photonic circuits, finally leading to the emergence of quantum photonic devices. These developments have brought widespread applications of silicon photonics in sensing, photovoltaics, and optical signal processing.
FRONTIERS IN PHYSICS
(2021)
Article
Optics
Yuhan Yao, Yuhe Zhao, Yanxian Wei, Feng Zhou, Daigao Chen, Yuguang Zhang, Xi Xiao, Ming Li, Jianji Dong, Shaohua Yu, Xinliang Zhang
Summary: This article presents a highly integrated dual-modality microwave frequency identification system on a single chip, which can identify different types of microwave signals and discriminate instantaneous frequency variation among the frequency-modulated signals. This technology can meet the requirements of reduction in size, weight, and power for future advanced microwave photonic processors.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Jacqueline Geler-Kremer, Felix Eltes, Pascal Stark, David Stark, Daniele Caimi, Heinz Siegwart, Bert Jan Offrein, Jean Fompeyrine, Stefan Abel
Summary: Researchers demonstrate a multilevel non-volatile phase shifter memory that is based on the integration of BaTiO3 thin films and silicon waveguides, achieving analogue and non-volatile optical phase tuning. This study adds an analogue non-volatile photonic element to the integrated photonics toolbox, enabling a new generation of power-efficient programmable photonic circuits.
Article
Optics
Thi Thuy Duong Dinh, Xavier Le Roux, Jianhao Zhang, Miguel Montesinos-Ballester, Christian Lafforgue, Daniel Benedikovic, Pavel Cheben, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Carlos Alonso-Ramos
Summary: Flexible control of modal confinement in silicon photonic waveguides is achieved using a new strategy that utilizes metamaterial engineering of the waveguide core and cladding. The proposed dual-material geometry allows independent control of the index contrast in the vertical and horizontal directions. Experimental results show that the dual-metamaterial waveguides exhibit similar measured quality factors and better calculated bulk sensitivity compared to strip waveguides.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Reza Baghdadi, Michael Gould, Shashank Gupta, Mykhailo Tymchenko, Darius Bunandar, Carl Ramey, Nicholas C. Harris
Summary: The number of photonic system components is increasing rapidly, especially in CMOS-compatible silicon photonics processes. Despite the challenges of implementing large numbers of cascaded active photonic devices, plasma dispersion and the thermo-optic effect in CMOS-compatible silicon processes can address some criteria. With additional back-end-of-line etch processing steps, silicon photonics platforms can support nano-opto-electro-mechanical (NOEM) phase shifters, but achieving NOEM phase shifters that operate at CMOS-compatible voltages and with low insertion loss remains a challenge.
Article
Optics
Tigers Jonuzi, Alessandro Lupo, Miguel C. Soriano, Serge Massar, J. D. Domenech
Summary: Artificial neural networks (ANN) are a groundbreaking technology used in various fields. Photonic implementation of ANN algorithms using frequency multiplexing has advantages of low power consumption and high bandwidth. An integrated programmable spectral filter is designed to manipulate the optical frequency comb in our neuromorphic computing platform.
Article
Optics
Sean Nelan, Andrew Mercante, Cooper Hurley, Shouyuan Shi, Peng Yao, Benjamin Shopp, Dennis W. Prather
Summary: This study reports a hybrid silicon nitride and lithium niobate folded electro-optic Mach Zehnder modulator, which features small footprint, low voltage, and wide bandwidth. The modulator demonstrates promising performance.
Article
Optics
Aolong Sun, Xuyu Deng, Sizhe Xing, Zhongya Li, Junlian Jia, Guoqiang Li, An Yan, Penghao Luo, Yixin Li, Zhiteng Luo, Jianyang Shi, Ziwei Li, Chao Shen, Bingzhou Hong, Wei Chu, Xi Xiao, Nan Chi, Junwen Zhang
Summary: Inverse design is used to develop ultra-compact dual-band wavelength demultiplexing power splitters (WDPSs) that can perform both wavelength demultiplexing and optical power splitting. The impact of different hyperparameters on the physical structure and optimization algorithm is analyzed. The WDPS achieved a significant footprint reduction and slightly improved performance compared to the forward-designed WDPS.
Article
Nanoscience & Nanotechnology
Taesu Ryu, Moohyuk Kim, Yongsop Hwang, Myung-Ki Kim, Jin-Kyu Yang
Summary: The study demonstrated high-efficiency metalenses based on silicon-on-insulator that can focus incident beams with high efficiency. The metalenses with a Si/ma-N disk array showed strong focusing capabilities at telecommunication wavelengths.
