A5007258773- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Optical Network Technologies
- Laser-Matter Interactions and Applications
- Photonic and Optical Devices
- Orbital Angular Momentum in Optics
- Optical Coherence Tomography Applications
- Nonlinear Photonic Systems
- Advanced Photonic Communication Systems
- Advanced Fluorescence Microscopy Techniques
- Advanced Fiber Optic Sensors
- Advanced Optical Sensing Technologies
- Nonlinear Dynamics and Pattern Formation
- Cancer Treatment and Pharmacology
- Quantum Information and Cryptography
- Photoacoustic and Ultrasonic Imaging
- Neural Networks and Reservoir Computing
- Plasmonic and Surface Plasmon Research
- Photorefractive and Nonlinear Optics
- Sperm and Testicular Function
- Quantum Computing Algorithms and Architecture
- Quantum optics and atomic interactions
- Microfluidic and Bio-sensing Technologies
- Air Quality and Health Impacts
- Optical Wireless Communication Technologies
Anhui Medical University
2023-2025
University of Auckland
2011-2024
The Dodd-Walls Centre for Photonic and Quantum Technologies
2019-2024
Anhui Provincial Hospital
2024
Second Hospital of Anhui Medical University
2023-2024
East China University of Science and Technology
2023-2024
Zhejiang A & F University
2008-2023
Shanghai Electric (China)
2023
Zhejiang University
2018-2023
State Key Laboratory of Chemical Engineering
2023
The authors demonstrate the generation of a highly coherent multicarrier signal that consists eight clearly resolved 10.7-GHz sidebands generated within 3 dB spectral envelope peak and with an extinction ratio in excess 45 by gain switching discrete mode (DM) laser. comb displays corresponding picosecond pulse train at repetition rate 10.7 GHz duration 24 ps temporal jitter ~450 fs. optical spectra associated pulses gain-switched DM laser are subsequently compared distributed feedback (DFB)...
Abstract Optical time-stretch imaging enables the continuous capture of non-repetitive events in real time at a line-scan rate tens MHz—a distinct advantage for ultrafast dynamics monitoring and high-throughput screening that are widely needed biological microscopy. However, its potential is limited by technical challenge achieving significant pulse stretching (that is, high temporal dispersion) low optical loss, which critical factors influencing quality, visible spectrum demanded many...
We report theoretical, numerical, and experimental studies of cascaded phase matching in fiber frequency combs show how this mechanism is directly connected to the dynamics supercontinuum generation. In particular, linking four-wave mixing with direct higher-order nonlinear processes allows us derive a simple condition that governs symmetry breaking presence dispersion. discuss provides physical interpretation soliton-induced Cherenkov radiation associated spectral recoil terms phase-matched...
Observing the dynamics of 3D soliton molecules can hold great opportunities for unveiling mechanism molecular complexity and other nonlinear problems. In spite this fantastic potential, real-time visualization their occurring on femtosecond-to-picosecond time scales is still challenging, particularly when high-spatiotemporal-resolution long-term observation are required. work, we observe speckle-resolved spectral-temporal a long interval using multispeckle measurement technology. Diverse...
We show that the emission of dispersive waves in nonlinear fiber optics is not limited to soliton-like pulses propagating anomalous dispersion regime. demonstrate, both numerically and experimentally, normal regime can excite resonant radiation across zero-dispersion wavelength into
Abstract Crystal phosphors have many unique advantages compared with powdery ones. Herein, room‐temperature‐grown millimeter‐sized single‐crystal of Cs 2 XF 6 :Mn 4+ (X = Ge, Si, and Ti) remarkably higher external quantum efficiency than the corresponding samples are reported. In addition, as ones, crystal exhibit much better stability toward water under different pH conditions. The red light‐emitting diodes (LEDs) based on crystals show significantly improved luminous those their powders....
Driven Kerr nonlinear optical resonators can sustain localized structures known as dissipative cavity solitons, which have recently attracted significant attention the temporal counterparts of microresonator frequency combs. While conventional wisdom asserts that bright solitons only exist when driving in region anomalous dispersion, recent theoretical studies predicted higher-order dispersion fundamentally alter situation, enabling even under conditions normal driving. Here we demonstrate a...
We demonstrate an all-fiber breathing laser as inertia-free swept source (BLISS), with ultra-compact design, for the emerging ultrafast bioimaging modalities. The unique feature of BLISS is its broadband wavelength-swept operation (∼60 nm) superior temporal stability in terms both long term (0.08 dB over 27 h) and shot-to-shot power variations (2.1%). More importantly, it enables a wavelength sweep rate >10 MHz (∼7×10⁸ nm/s)—orders-of-magnitude faster than existing sources based on...
In addition to stable pulse generation, passively mode-locked fiber lasers can easily run into an unstable regime of multipulse mode-locking. The birth and dynamic behaviors mode-locking so far have rarely been experimentally explored, particularly in the spectral domain. this letter, several kinds spectral-temporal dynamics a laser are observed single-shot manner, e.g., energy quantization, self-phase modulation broadening, wavelength shifting, interfering, ultraweak interaction. This study...
We developed a miniature quantitative optical coherence elastography (qOCE) instrument with an integrated Fabry-Perot force sensor, for in situ elasticity measurement of biological tissue. The technique has great potential biomechanics modeling and clinical diagnosis. designed the fiber-optic qOCE probe that was used to exert compressive deform tissue at tip probe. Using space-division multiplexed tomography (OCT) signal detected by spectral domain OCT engine, we were able quantify...
Kerr microresonators driven in the normal dispersion regime typically require presence of localized perturbations, such as those induced by avoided mode crossings, to initiate formation optical frequency combs. In this work, we experimentally demonstrate that requirement can be lifted driving resonator with a pulsed pump source. We also show controlling desynchronization between repetition rate and cavity free-spectral range (FSR) provides simple mechanism tune center output comb. Using...
The reported autofocusing ability of a ring Airyprime beam array reaches up to 8632.40, while the strongest circular (CAPB) is only 1822.49. How can single reach array? To achieve this goal, circularly transformed (CTAPB) introduced by following two steps. First, equation transformation on transverse coordinates in electric field expression propagating performed. Then, integrated over angle. intensity profile CTAPB initial plane changes significantly with varying primary radius r
Phase-coherent pulsed driving of passive optical fiber resonators enables the generation ultrashort dissipative Raman solitons with durations well below 100 fs. The existence and characteristics such critically depend on desynchronization between source resonator round trip time, yet full mechanism through which these dependencies arise remains unclear. Here, we numerically demonstrate that can exist even under conditions continuous-wave (CW) driving, by examining conditions, elucidate role...
We report on the experimental observation of internally-pumped parametric oscillation in a high-Q lithium niobate microresonator under conditions natural phase-matching. Specifically, launching near-infrared pump light around 1060 nm into $z$-cut congruent microresonator, we observe generation optical sidebands input where second-harmonic is close to find that wide range different sideband frequency shifts can be generated by varying parameters. Under particular conditions, cascaded several...