A5100740514- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Neural Networks and Reservoir Computing
- Mechanical and Optical Resonators
- Peanut Plant Research Studies
- Photonic Crystals and Applications
- Advanced MEMS and NEMS Technologies
- Semiconductor Lasers and Optical Devices
- Plasmonic and Surface Plasmon Research
- Acoustic Wave Resonator Technologies
- Fusion materials and technologies
- Advanced Fiber Optic Sensors
- Nanowire Synthesis and Applications
- Chaos control and synchronization
- Graphene and Nanomaterials Applications
- Medicinal Plant Pharmacodynamics Research
- Power Systems and Technologies
- Random lasers and scattering media
- Microwave Engineering and Waveguides
- Nuclear Materials and Properties
- Silicon Nanostructures and Photoluminescence
- Semiconductor Quantum Structures and Devices
- 3D IC and TSV technologies
Peking University
2014-2025
Peng Cheng Laboratory
2022-2023
King University
2023
Ministry of Education of the People's Republic of China
2015-2016
Southeast University
2015-2016
Qiannan Normal College For Nationalities
2011
Institut National des Sciences Appliquées de Lyon
2011
Xiaomi (China)
2005
Abstract Microcombs have sparked a surge of applications over the past decade, ranging from optical communications to metrology 1–4 . Despite their diverse deployment, most microcomb-based systems rely on large amount bulky elements and equipment fulfil desired functions, which is complicated, expensive power consuming. By contrast, foundry-based silicon photonics (SiPh) has had remarkable success in providing versatile functionality scalable low-cost manner 5–7 , but its available...
The emergence of parallel convolution-operation technology has substantially powered the complexity and functionality optical neural networks (ONN) by harnessing dimension wavelength. However, this advanced architecture faces remarkable challenges in high-level integration on-chip operation. In work, convolution based on time-wavelength plane stretching approach is implemented a microcomb-driven chip-based photonic processing unit (PPU). To support operation unit, we develop dedicated...
Abstract The rising demand for high scanning accuracy and resolution in sensors self-driving vehicles has led to the rapid development of parallelization light detection ranging (LiDAR) technologies. However, two major existing LiDAR categories—time-of-flight frequency-modulated continuous wave—the sources measurement principles currently used parallel face severe limitations from time- frequency-domain congestion, leading degraded performance increased system complexity. In this work we...
Silicon modulators are key components to support the dense integration of electro-optic functional elements for various applications. Despite numerous advances in promoting modulation speed, a bandwidth ceiling emerges practices and becomes an obstacle toward Tbps-level throughput on single chip. Here, we demonstrate compact pure silicon modulator that shatters present 110 gigahertz. The proposed is built cascade corrugated waveguide architecture, which gives rise slow-light effect. By...
Optical chaos is vital for various applications such as private communication, encryption, anti-interference sensing, and reinforcement learning. Chaotic microcombs have emerged promising sources generating massive optical chaos. However, their inter-channel correlation behavior remains elusive, limiting potential on-chip parallel chaotic systems with high throughput. In this study, we present massively based on high-nonlinearity AlGaAsOI platforms. We demonstrate the feasibility of signals...
Graphene photodetectors have exhibited high bandwidth and capability of being integrated with silicon photonics (SiPh), holding promise for future optical communication devices. However, they usually suffer from a low photoresponsivity due to weak absorption. In this work, we implemented SiPh-integrated twisted bilayer graphene (tBLG) detectors reported responsivity 0.65 A W
Abstract Optical implementations of neural networks (ONNs) herald the next-generation high-speed and energy-efficient deep learning computing by harnessing technical advantages large bandwidth high parallelism optics. However, due to problems incomplete numerical domain, limited hardware scale, or inadequate accuracy, majority existing ONNs were studied for basic classification tasks. Given that regression is a fundamental form accounts part current artificial intelligence applications, it...
The integrated microwave photonic filter (MPF), as a compelling candidate for next-generation radio-frequency (RF) applications, has been widely investigated decades. However, most MPFs reported thus far have merely incorporated passive components onto chip-scale platform, while all necessary active devices are still bulk and discrete. Though few attempts to higher integration of executed, the achieved filtering performances fairly limited, which impedes pathway practical deployments. Here,...
Integrated microwave photonic filters (IMPFs) are capable of offering unparalleled performances in terms superb spectral fineness, broadband, and more importantly, the reconfigurability, which encounter trend next-generation wireless communication. However, to achieve high previous works should adopt complicated system structures modulation formats, put great pressure on power consumption controlment, and, therefore, impede massive deployment IMPF. Here, we propose a streamlined architecture...
Abstract Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental phenomena analogous atomic physics. Previously, the distinct energy levels and interactions in such two-level systems were provided by coupled microresonators. The reconfigurability is limited, as they often require delicate external field stimuli or mechanically altering geometric factors. These highly specific approaches also limit potential applications. Here,...
Abstract Microwave photonics (MWP) is an emerging field that studies the interaction between microwave and lightwave for myriad communication information applications. Recently, new opportunity MWP has emerged driven by advances of integrated photonics. However, despite significant progress made in terms integration level, a fully on‐chip functional system comprising all necessary photonic electronic components, yet to be demonstrated. Here, status quo broken complete solution provided,...
Microwave photonic receivers are a promising candidate in breaking the bandwidth limitation of traditional radio-frequency (RF) receivers. To further balance performance superiority with requirements regarding size, weight, and power consumption (SWaP), implementation integrated microwave microsystems has been considered an upgrade path. However, up to now, best our knowledge, chip-scale fully have not reported due material platforms. In this paper, we report hybrid receiver (FIH-MWPR)...
Quantum fluctuations disrupt the cyclic motions of dissipative Kerr solitons (DKSs) in nonlinear optical microresonators and consequently cause timing jitter emitted pulse trains. This problem is translated to performance several applications that employ DKSs as compact frequency comb sources. Recently, device manufacturing noise reduction technologies have advanced unveil quantum properties DKSs. Here we investigate decoherence existing normal-dispersion known dark pulses. By virtue very...
Microcombs are revolutionizing optoelectronics by providing parallel, mutually coherent wavelength channels for time-frequency metrology and information processing. To implement this essential function in integrated photonic systems, it is desirable to drive microcombs directly with an on-chip laser a simple flexible way. However, two major difficulties have prevented goal: (1) generating mode-locked comb states usually requires significant amount of pump power (2) the requirement align...
Abstract Sharing the hardware platform between diverse information systems to establish full cooperation among different functionalities has attracted substantial attention. However, broadband multifunctional integrated with large operating frequency ranges are challenging due bandwidth and computing speed restrictions of electronic circuitry. Here, we report an analog parallel processor (APP) based on silicon photonic that directly discretizes parallelizes signal in domain. The APP first...
The necessity for efficient optical phase tuning has long been critical and is increasingly urgent in light of system scaling growing demands data transmission. In an integrated ring resonator, the design freedom high efficiency even more constrained due to its ultra-compact footprint low cross talk requirements large-scale operation. this Letter, we demonstrated a polarization multiplexed microring resonator tuning. Experimental results indicate 55%/177% enhancement compared with...
A tapered asymmetric directional coupler is considered as a promising structure for high tolerance and efficient on-chip mode (de)multiplexers. However, the optimum geometry parameters selection still remains empirical without specific numerical guidance. Here, an in-depth analysis has been carried out based on coupling theory. theoretical model built aiming to combine consideration of device efficiency, crosstalk fabrication tolerance. According that, (de)multiplexers (TE <inline-formula...
The mechanism of radiation-induced detwinning is different from that deformation as the former dominated by supersaturated defects while latter usually triggered global stress. In situ Kr ion irradiation was performed to study nanotwinned Cu films with various twin thicknesses. Two types incoherent boundaries (ITBs), so-called fixed ITBs and free ITBs, are characterized based on their structural features, difference in migration behavior investigated. It observed during radiation attributed...
Despite intense research on high entropy films, the mechanism of film growth and influence key factors remain incompletely understood. In this study, films consisting five elements (FeCoNiCrAl) with columnar nanometer-scale grains were prepared by magnetron sputtering. The mechanism, including formation amorphous domain, equiaxial nanocrystalline structure crystal was clarified analyzing microstructure in detail. Besides, impacts important deposition parameters substrate temperature, powder...