247 citations · 797 across the 17 of their papers we have counts for
17 papers
Tunable quantum dots in monolithic Fabry-Perot microcavities for high-performance single-photon sources
Jiawei Yang, Yan Chen, Zixuan Rao +9
Cavity-enhanced single quantum dots (QDs) are the main approach towards ultra-high-performance solid-state quantum light sources for scalable photonic quantum technologies. Neverth…
Single-shot Kramers-Kronig complex orbital angular momentum spectrum retrieval
Zhongzheng Lin, Jianqi Hu, Yujie Chen +2
Orbital angular momentum (OAM) spectrum diagnosis is a fundamental building block for diverse OAM-based systems. Among others, the simple on-axis interferometric measurement can re…
80-Channel WDM-MDM Transmission over 50-km Ring-Core Fiber Using a Compact OAM DEMUX and Modular 4x4 MIMO Equalization
Junwei Zhang, Yuanhui Wen, Heyun Tan +8
8-OAM modes each carrying 10 wavelengths with 2.56-Tbit/s aggregated capacity and 10.24-bit/s/Hz spectral efficiency have been transmitted over 50-km specially designed ring-core f…
Obstacle evasion in free-space optical communications utilizing Airy beams
Guoxuan Zhu, Yuanhui Wen, Xiong Wu +3
A high speed free-space optical communication system capable of self-bending signal transmission around line-of-sight obstacles is proposed and demonstrated. Airy beams are generat…
Spiral Transformation for High-Resolution and Efficient Sorting of Optical Vortex Modes
Yuanhui Wen, Ioannis Chremmos, Yujie Chen +3
Mode sorting is an essential function for optical systems exploiting the orthogonality of photonic orbital angular momentum mode space. The familiar log-polar optical transformatio…
Demonstration of a genetic-algorithm-optimized cavity-based waveguide crossing
Pengfei Xu, Yanfeng Zhang, Zengkai Shao +2
A compact, single-etch silicon photonics waveguide crossing based on low quality factor cavity and optimized by a genetic algorithm is demonstrated. The device has 0.1~0.3 dB inser…
On-chip radially and azimuthally polarized vortex beam generation utilizing shallow-etched gratings
Zengkai Shao, Jiangbo Zhu, Yanfeng Zhang +2
Cylindrical vector vortex (CVV) beams, complex light fields that exhibit a vector nature and carry quantized orbital angular momentum states, have been widely investigated due to t…
Hybrid light-emitting polymer/SiNx platform for photonic integration
Zeming Fan, Zeru Wu, Yujie Chen +4
Organic semiconductors have potentials for a broad range of applications; however, it is difficult to be integrated with traditional inorganic material to meet the need of further…
Orbital-angular-momentum mode-group multiplexed transmission over a graded-index ring-core fiber based on receive diversity and maximal ratio combining
Junwei Zhang, Guoxuan Zhu, Liu Jie +5
An orbital-angular-momentum (OAM) mode-group multiplexing (MGM) scheme based on a graded-index ring-core fiber (GIRCF) is proposed, in which a single-input two-output (or receive d…
Spin-orbit interaction of light induced by transverse spin angular momentum engineering
Zengkai Shao, Jiangbo Zhu, Yujie Chen +2
We report the first demonstration of a direct interaction between the extraordinary transverse spin angular momentum in evanescent waves and the intrinsic orbital angular momentum…
Silicon nitride metalenses for unpolarized high-NA visible imaging
Zhi-Bin Fan, Zeng-Kai Shao, Ming-Yuan Xie +6
As one of nanoscale planar structures, metasurface has shown excellent superiorities on manipulating light intensity, phase and/or polarization with specially designed nanoposts pa…
Design and optimization of optical modulators based on graphene-on-silicon nitride microring resonators
Zeru Wu, Yujie Chen, Tianyou Zhang +5
In order to overcome the challenge of obtaining high modulation depth due to weak graphene-light interaction, a graphene-on-silicon nitride (SiNx) microring resonator based on grap…
A Highly Adjustable Helical Beam: Design and Propagation Characteristic
Yuanhui Wen, Yujie Chen, Siyuan Yu
Light fields with extraordinary propagation behaviours such as nondiffracting and self-bending are useful in optical delivery for energy, information, and even objects. A kind of h…
Tailoring Accelerating Beams in Phase Space
Yuanhui Wen, Yujie Chen, Yanfeng Zhang +2
An appropriate design of wavefront will enable light fields propagating along arbitrary trajectories thus forming accelerating beams in free space. Previous ways of designing such…
Transport properties of photonic topological insulators based on microring resonator array
Xiaohui Jiang, Yujie Chen, Chenxuan Yin +3
An array of ring resonators specifically designed can perform as a topological insulator. We conduct simulations using both Tight-Binding Model (TBM) and Transfer Matrix Method (TM…
Generalised Hermite-Gaussian beams and mode transformations
Yi Wang, Yujie Chen, Yanfeng Zhang +2
Generalised Hermite-Gaussian modes (gHG modes), an extended notion of Hermite-Gaussian modes (HG modes), are formed by the summation of normal HG modes with a characteristic functi…
Winding light beams along elliptical helical trajectories
Yuanhui Wen, Yujie Chen, Yanfeng Zhang +2
Conventional caustic methods in real or Fourier space produced accelerating optical beams only with convex trajectories. We develop a superposition caustic method capable of windin…