Shaohua Yu

High-purity linearly polarized emission from a compact BIC laser

Yifan Li, Wei Guo, Zihang Cui, Guozhen Liang et autres

Bound states in the continuum (BICs) confer ultrahigh quality factors and, thus, enable low thresholds upon photonic crystal (PhC) lasers. However, BICs feature a momentum-space vectorial polarization vortex, posing a substantial obstacle in achieving high-purity polarized emission. Traditionally, polarization control of a …

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Demonstration of a 100 Gb/s complex-valued double-sideband direct-detection PON with a 42/49 dB optical power budget over a 20 km SSMF/AR-HCF

Xu Zhang, Hui Chen, Yao Lü, Honglin Ji et autres

In passive optical networks (PONs), the optical power budget serves as a key determinant of system scalability. A higher power budget allows for larger split ratios over a given transmission medium, thereby enabling more end users to share the same infrastructure and …

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Ba 3 (MoO 2 F 3 )PO 4 F 2 : Rational Design and Synthesis of an Alkaline-Earth Phosphate Fluoride as a Birefringent Crystal

Feng Xu, Bin Su, Chao He, Shaohua Yu et autres

Phosphate birefringent crystals and nonlinear optical (NLO) crystals are currently in imperative demand for ample applications. However, it is hugely challenging to explore novel phosphate crystals with splendid comprehensive optical and NLO performances due to the drawback of small birefringence. Herein, to …

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Snapshot Chiral Spectro‐Polarimetric Imaging via a Microcavity‐Metalens‐Integrated Chip (Advanced Optical Materials 33/2025)

Tian Huang, Yingxin Xie, Nana Chen, Haonan Zhang et autres

Spectro-Polarimetric Imaging In the Research Article (DOI: 10.1002/adom.202500864), Guoxing Zheng, Zile Li, and co-workers report a spectro-polarimetric imaging device achieving miniaturization and high integration through direct cascading diverse microcavity and metalens on a planar substrate, enabling snapshot detection of multiple light-field information …

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Topological nanorainbow laser

Shouqi Zhang, Yongquan Zeng, Xing Hong, Wen Dong Zhao et autres

Multiwavelength (or multifrequency) coherent light sources with spatial isolation are essential for diverse applications. Nevertheless, regulating the multiple emission wavelengths in an ultracompact scale is challenging. In this work, we realize a topological nanorainbow laser by exploiting synthetic dimensions in parameter space …

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Co-Transmission of OSCL-Band $4 \lambda 240 ~\text{Gb} / \mathrm{s} / \lambda$ PAM8 Signals Over 6.2 km Anti-Resonate Hollow-Core-Fiber with Linear FFE

Sudeng Hu, Chao Yang, Chao Li, Yunhong Liu et autres

We proposed and experimentally demonstrated the co-transmission of$4 \lambda$OSCL-band 960 Gb/s PAM8 WDM IM/DD optical interconnect over 6.2 km anti-resonate hollow-core-fiber (AR-HCF), at the BER level of 20% SD-FEC threshold of$2.4 \times 10^{-2}$with linear FFE only. ©2025 The Author(s)

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Demonstration of 200-Gb/s PON With 37-dB/44-dB Power Budget Over 20-km SSMF/AR-HCF Based on a Deep-Learning-Enabled Optimal Direct-Detection Receiver

Xingfeng Li, Xu Zhang, Hui Chen, Yao Lü et autres

200-Gb/s passive optical network (PON) is regarded as a natural step for the next generation PON beyond 50-Gb/s line rate. Currently, the existing solutions include O-band intensity modulation-direct detection PON and C-band coherent PON. However, it is challenging to realize 200-Gb/s direct-detection …

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Ultra-High Capacity Transmission in Anti-Resonant Hollow Core Fiber

Xumeng Liu, Xu Zhang, Chao Li, Mingshi Zhang et autres

Anti-resonant hollow core fiber (AR-HCF) is a promising alternative for next-generation optical systems, given their theoretical potential of achieving low loss and ultra-low Rayleigh backscattering over ultra-wide bandwidth, ideally overcoming the bottleneck of SSMF-based systems. This paper studies the Rayleigh backscattering characteristics …

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Metalasers with arbitrarily shaped wavefront

Yixuan Zeng, Xinbo Sha, Chi Zhang, Yao Zhang et autres

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Direct polarized luminescence from perovskite superlattices by manipulating transition dipole moment orientation

Shaohua Yu, Jin Xu

Linearly polarized light with electric field oscillations confined to a fixed plane, plays a critical role in numerous applications such as bioimaging, anti-counterfeiting technology and three-dimensional displays (Geng, 2013;Cunningham, 2016;Bloxham, 2021;Song et al., 2025). This polarizationdependent phenomenon enables selective material interactions while …

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Efficient unmanned aerial vehicle detection algorithm based on cross-weighted pixel reconstruction and feature selection network

Mengchu Tian, Jun Wang, Shaohua Yu, Meiji Cui et autres

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Endless Optical Polarization Demultiplexing for Coherent 60/20 GBaud PDM-16/64 QAM Signals over 11.1 km Nested Anti-Resonant Nodeless Fiber (NANF) Link

Peng Sun, Wanxin Zhao, Chao Li, Jie Luo et autres

Optical polarization demultiplexing module for 60/20-Gbaud PDM-16QAM/64QAM MIMOfree coherent system over 11.1 km NANF is demonstrated, achieving 12-hour endless polarization tracking at$1-\text{krad} / \mathrm{s}$RSOP with PCR$>20 ~\text{dB}$and BER$<2.4 \times 10^{-2}$. © 2025 The Author(s)

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