Xinhuan Feng

Immune reconstitution and long-term survival outcomes in LTHIs and TPs living with long-term ART: a propensity score-matched cohort study in Xinjiang, China

Zikang Hu, Yongkang Ni, He Qian, Fengying Wang et autres

Background To compare immune reconstitution and long-term survival outcomes between long-term HIV-1 infected individuals (LTHIs) and typical progressors (TPs) under long-term antiretroviral therapy (ART) using a prospective HIV cohort in Yining City, China, and to provide evidence for risk stratification and follow-up …

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A Dynamically Evolving Optical Bit Stream from Soliton Rain for Multiplexed and Robust LiDAR with Millimeter Resolution

Baoliang Liao, Qinlang Yuan, Chao Song, Yuan Cao et autres

ABSTRACT The pursuit of high‐resolution and robust light detection and ranging (LiDAR) is often hampered by the inherent limitations of conventional laser sources, which struggle to simultaneously offer fine spatial resolution and strong resilience against interference. We introduce a novel laser source …

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Compact Polarization-Independent 90:10 Power Divider With Wide Bandwidth

Yun Huang, Wufei Zhou, Weiye Hu, Zhiguo Shi et autres

This paper presents an ultra-compact, polarization-insensitive asymmetric (90:10) power splitter based on a modified multimode interference (MMI) structure on a silicon-on-insulator (SOI) platform. The device integrates a unique combination of rectangular and trapezoidal sections within the MMI region, achieving a remarkably small …

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Monolithically silicon photonic integrated transceiver for microwave and optical dual-band beamforming and free-space communications

Jianping Yao, Ruiqi Zheng, Jingxu Chen, Jinkun Hu et autres

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Integrated microwave photonic radar for multifunctional applications based on silicon on insulator

Jingxu Chen, Ruiqi Zheng, Jianghai Wo, Chao Song et autres

An integrated multifunctional microwave photonic radar implemented on a silicon on insulator (SOI) platform is proposed and experimentally demonstrated. The multiple functions such as target detection, true-time-delay-based jamming, and parameter acquisition of an unknown radar signal are seamless integrated within a single …

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Microwave Photonics for Space-Ground Connectivity

Ruiqi Zheng, Jingxu Chen, Jian Hu, Haikun Huang et autres

Future space-ground communication networks require a seamless fusion of technologies that combine the all-weather reliability of microwave links with the ultra-high data capacity of near-infrared optical systems. Achieving this vision demands compact, robust, and multifunctional hardware, yet monolithic integration of these fundamentally …

Photonic-Assisted Joint Radar and Communication System Using Overlapped Spectrum for High-Resolution Ranging and High-Speed Data Transmission

Jingxu Chen, Haikun Huang, Ruiqi Zheng, Baohang Mo et autres

We propose and demonstrate a photonic-assisted joint radar and communication (JRC) system using a JRC signal with overlapped spectrum to support simultaneous wideband ranging and high-speed communications. For radar ranging, an electrical linearly-frequency-modulated (LFM) waveform is modulated on an optical carrier at …

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High-speed organic gas sensor using a microfiber Mach-Zehnder interferometer interrogated based on microwave photonic pulse compression

Baoliang Liao, Tengxiang Li, Guangying Wang, Jingxu Chen et autres

A high-speed fiber-optic real-time organic gas sensor based on a microfiber Mach-Zehnder interferometer (MZI) interrogated based on microwave photonic pulse compression is proposed and experimentally demonstrated. A taper-based microfiber MZI (mMZI) with a nonuniform free spectral range (FSR) is used as a …

Individual Mode Characterization of 3D Solitons in a Spatiotemporal Mode‐Locked Fiber Laser

Jiawen Wu, Wenjun Li, Guangxin Liu, Ruqiang Huang et autres

Abstract 3D solitons in spatiotemporal mode‐locked (STML) fiber lasers have garnered significant attention due to their distinctive mode characteristics. However, the detailed characterization of individual modes remains challenging, limited by current measurement equipment and techniques. Here, a straightforward real‐time method leveraging both …

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Microwave Photonic Multimode Injection-Locked Frequency Divider With a Wide Operational Range Based on an Optoelectronic Oscillator

Siyu Liu, Kaitao Lin, Weiye Hu, Zhenzhao Yi et autres

We propose and implement a microwave photonic multimode injection-locked frequency divider (ILFD) with a wide frequency operational range based on an optoelectronic oscillator (OEO). In the OEO, a Mach-Zehnder modulator (MZM) and a photodetector (PD) are employed to construct a frequency multiplier …

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Microwave Photonic Distributed Radar System for Target Positioning Based on Joint Polarization and Sideband Multiplexing

Baohang Mo, Ruiqi Zheng, Jiejun Zhang, Jianghai Wo et autres

We propose and demonstrate a microwave photonic distributed radar system for target positioning based on joint polarization and sideband multiplexing to enable four radar transceivers to share a single optical wavelength. The system consists of an indoor unit and an outdoor unit …

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Microwave Photonic Multi-Mode Injection-Locked Frequency Divider With a Wide Operational Range Based on an Optoelectronic Oscillator

Siyu Liu, Kaitao Lin, Weiye Hu, Zhenzhao Yi et autres

We propose and implement a microwave photonic multi-mode injection-locked frequency divider (ILFD) with a wide frequency operational range based on an optoelectronic oscillator (OEO). In the OEO, a Mach-Zehnder modulator (MZM) and a photodetector (PD) are employed to construct a frequency multiplier …