A5108047680- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Advanced Fiber Optic Sensors
- Orbital Angular Momentum in Optics
- Photonic Crystal and Fiber Optics
- Photorefractive and Nonlinear Optics
- Photonic Crystals and Applications
- Atmospheric Ozone and Climate
- Infrared Target Detection Methodologies
- Advanced battery technologies research
- Mechanical and Optical Resonators
- Semiconductor Lasers and Optical Devices
- Advanced Measurement and Detection Methods
- Antenna Design and Optimization
- Analytical Chemistry and Sensors
- Molecular Spectroscopy and Structure
- Advanced Battery Materials and Technologies
- Direction-of-Arrival Estimation Techniques
- Molecular Junctions and Nanostructures
- Bone Tissue Engineering Materials
- Silk-based biomaterials and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Semiconductor materials and devices
Nanjing University of Science and Technology
2011-2024
University of Macau
2024
State Key Laboratory on Integrated Optoelectronics
2014-2024
China Academy of Space Technology
2023
Ministry of Industry and Information Technology
2023
Northwestern Polytechnical University
2023
State Key Laboratory of Pollution Control and Resource Reuse
2022
University of Science and Technology of China
2022
China Academy of Engineering Physics
2021
Huazhong University of Science and Technology
2018
In this paper, we present experimental studies on newly developed multiplexed chirped tilted fiber Bragg gratings (MCTFBGs) for stimulated Raman scattering (SRS) suppression high-power laser systems. The MCTFBG device is composed of five continuous segments (CTFBGs), which are inscribed into the large-mode-area (LMA, 25/400μm) fibers. SRS capability has been successfully demonstrated with a master oscillator power amplification (MOPA) system at output level 3.4 KW. observation thus indicates...
Optimal dimensions are found for the silicon waveguide in an electro-optic (EO) polymer cladding-based modulator. The confinement factor as well effective index of mode taken into account. influence coplanar electrode spacing and height on performance examined a figure merit formula choosing optimal device geometry is shown. design space both 1550 nm 1310 wavelengths explored. With 275 width 4 μm spacing, Vπ few volts can be achieved even with moderate r33 EO polymers. Experimental results...
A silica/electro-optic (EO) polymer phase modulator is proposed for microwave radiation receiver with the use of a bowtie antenna. Waveguide design optimization presented waveguide an EO core and silica/sol-gel cladding. Electrode effects on insertion loss poling efficiency are also analyzed conditions low-loss high established. The antenna simulated shows broadband response maximum at 5 GHz 3 dB-bandwidth approximately 12 GHz. fiber splicing technique that reduces coupling between SMF-28...
Crystalline Ge1−xSnx films were successfully grown on Si (100) substrates by low-temperature magnetron sputtering, using a Ge thin film as buffer layer. The resulting revealed to have high crystalline quality X-ray diffraction and transmission electron microscopy. thermal stability of these was also studied in detail, demonstrating that sputtered with Sn composition 0.06 are stable at 500°C. On the basis results, Ge1-xSnx sputtering appear great promise for cost-effective fabrication...
Due to the peculiar structured light field with spatially variant polarizations on same wavefront, vector beams (VBs) have sparked research enthusiasm in developing advanced super-resolution imaging and optical communications techniques. A compact VB nanolaser is intriguing for applications miniaturized photonic integrated circuits. However, determined by diffraction limit of light, it a challenge realize subwavelength scale because lasing modes should laterally distributions. Here, we...
A new three-dimensional finite-difference (FD)-based beam propagation method (BPM) is proposed for simulating optical in weakly guiding waveguides with torsional birefringence, which cannot be simulated by existing FD-BPM algorithms. We also demonstrate that this BPM algorithm capable of obtaining eigenmode solutions a helically-symmetric z-dependent waveguide structure birefringence.
Abstract Hepatocellular carcinoma is one of the common tumors in world, which leads to more than 600,000 deaths per year.Microwave hyperthermia has been widely used hepatocellular treatment, whereby cancer cells are heated and killed by making use different thermal sensitivity normal cells. Monopole be microwave radiator recent years; however, ablation region elongated along antenna insertion direction so that skin tissue around tumor also unexpectedly. It desirable generate a heating...
Cavity quantum electrodynamics (cavity QED) with neutral atoms is a promising platform for information processing and optical fiber Fabry-Pérot microcavity small mode volume an important integrant the large light-matter coupling strength. To transport cold to microcavity, high-power dipole trap (ODT) beam perpendicular cavity axis commonly used. However, overlap between ODT mirrors causes thermal effects inducing shift at locking wavelength differential probe which disturbs resonance. Here,...
Organic-inorganic hybrid sol-gel materials have been widely used for the fabrication of optoelectronic devices due to advantages such as low cost, loss, temperature fabrication, ease processing, good thermal and mechanical stability, large refractive index tunability. However, residual OH-like groups remaining after treatment hindered development erbium doped waveguide amplifiers working at ~1550 nm. A variety means adopted overcome this problem: (1) vibration energy deuterated or...
Abstract Owing to the rapid development of coherent optical fiber communication, free-space communication systems typically have a fiber-based coupling structure. In such systems, received light field is coupled single-mode or few-mode (FMF). this study, we respectively establish an expectation model FMF efficiency under system aberration (OSA) and positioning error (FPE) conditions, based on Kolmogorov power-law spectrum plane wave. The performance with different geometry parameters...
Optical microcavities with ultrahigh quality factors are still currently considered as one of the solutions to achieve miniaturized and precision accelerometers, but measurement sub-ng/Hz1/2 acceleration has yet be proven. Here we propose a new architecture for optomechanical sensing using prism microcavity coupling. The relative displacement between coupled is read in real time carrier information on resonance spectrum, which inverts loaded signal. In framework dissipative coupling...
SRAM-based compute-in-memory (CIM) [1]–[7] exhibits outstanding energy efficiency in fast-growing AI applications. The analog CIM [4]–[5] improves the further by reducing MAC signal swing. Floating-point (FP) inference shows higher accuracy than INT type from its exponential expansion even if keeping same bit width, and it also demonstrates better configuration, which is a promising technique for complex tasks. However, extra power alignment operations calculation together with considerable...
The transmit signal with good performance is the precondition of excellent multiple-input and multiple-output (MIMO) synthetic aperture radar (SAR). In order to obtain waveforms MIMO SAR based on linear frequency modulation higher tolerance receiver noise, improved non-dominated sorting genetic algorithm II (NSGA-II) elite strategy proposed. Application orthogonal hybrid coding (LFMHC) analyzed waveform design hence converted into multi-objective optimization problem. Objective function...