207 citations · 762 across the 45 of their papers we have counts for
46 papers
Highly-efficient, narrow-linewidth Brillouin microlasers implemented in compact thin-film lithium niobate microresonators
Yingnuo Qiu, Chuntao Li, Renhong Gao +5
Stimulated Brillouin microlasers offer chip-scale light sources with high spectral purity and low phase noise--key attributes for applications spanning precision metrology, quantum…
Monolithic tantalum pentoxide microrings with intrinsic Q factors exceeding 4X10(6)
Xinzhi Zheng, Yixuan Yang, Renhong Gao +3
Tantalum pentoxide (Ta2O5), as a silicon-photonic-compatible material platform, has garnered significant attention for high-performance integrated photonics due to its exceptional…
Highly efficient multi-chromatic Raman microlasers from cavity polygon modes on thin-film lithium niobate platform
Yixuan Yang, Chuntao Li, Renhong Gao +5
The integration of stimulated Raman scattering (SRS) and second order nonlinearity in non-centrosymmetric photonic microresonators presents a highly promising solution for developi…
Simultaneous generation of Raman-assisted Soliton Microcombs and Tunable Multi-chromatic Raman Microlasers in Single Monolithic Thin-film Lithium Niobate Microrings
Yingnuo Qiu, Renhong Gao, Chuntao Li +9
High-performance integrated broadband coherent light sources are essential for advanced applications in high-bandwidth data processing and chip-scale metrology, yet remain challeng…
Low-loss thin-film periodically poled lithium niobate waveguides fabricated by femtosecond laser photolithography
Guanghui Zhao, Jintian Lin, Renhong Gao +10
Periodically poled lithium niobate on insulator (PPLNOI) ridge waveguides are critical photonic components for both classical and quantum information processing. However, dry etchi…
Second harmonic generation with 48% conversion efficiency from cavity polygon modes in a monocrystalline lithium niobate microdisk resonator
Chao Sun, Jielei Ni, Chuntao Li +10
Thin-film lithium niobate (TFLN) based optical microresonators offer large nonlinear coefficient d_33 and high light-wave confinement, allowing highly efficient second-order optica…
Efficient transverse multi-wave interactions up to six-wave mixing in a high-Q lithium niobate microresonator
Chuntao Li, Ni Yao, Huakang Yu +6
High-order nonlinear optical processes beyond four-wave mixing serve as fundamental tools for advancing photonic technologies, yet their practical implementation remains challengin…
Integrated multi-color Raman microlasers with ultra-low pump levels in single high-Q lithium niobate microdisks
Guanghui Zhao, Jintian Lin, Botao Fu +8
Photonic integrated Raman microlasers, particularly discrete multi-color lasers which are crucial for extending the emission wavelength range of chip-scale laser sources to much sh…
Erbium-ytterbium co-doped lithium niobate single-mode microdisk laser with an ultralow threshold of 1 uW
Minghui Li, Renhong Gao, Chuntao Li +9
We demonstrate single-mode microdisk lasers in the telecom band with ultra-low thresholds on erbium-ytterbium co-doped thin-film lithium niobate (TFLN). The active microdisk were f…
Generation of Kerr soliton microcomb in a normally dispersed lithium niobate microdisk resonator by mode trimming
Botao Fu, Renhong Gao, Ni Yao +6
Anomalous microresonator dispersion is mandatory for Kerr soliton microcomb formation, which depends critically on the geometry of the microresonator and can hardly be tuned after…
Ultra-high Q lithium niobate microring monolithically fabricated by photolithography assisted chemo-mechanical etching
Chuntao Li, Jianglin Guan, Jintian Lin +5
Thin-film lithium niobate (TFLN) has been considered as one of the most important platforms for constructing high-performance photonic integrated devices such as electro-optic modu…
Monolithically integrated high-power narrow-bandwidth microdisk laser
Jianglin Guan, Chuntao Li, Renhong Gao +7
Integrated on-chip microdisk lasers have attracted great attention as a light source of compact size, low lasing threshold and narrow bandwidth. However, challenges remain unresolv…
Modes trimming and clustering in a weakly perturbed high-Q whispering gallery microresonator
Botao Fu, Renhong Gao, Jintian Lin +6
In general, a high-Q microresonator can accommodate abundant whispering gallery modes (WGMs) with the mode number increasing with the dimensional sizes of the microresonator. Remov…
Electro-optically tunable low phase-noise microwave synthesizer in an active lithium niobate microdisk
Renhong Gao, Botao Fu, Ni Yao +7
Photonic-based low-phase-noise microwave generation with real-time frequency tuning is crucial for a broad spectrum of subjects, including next-generation wireless communications,…
Coherent mode-combined ultra-narrow-linewidth single-mode micro-disk laser
Jintian Lin, Saeed Farajollahi, Zhiwei Fang +10
Integrated single-mode microlasers with ultra-narrow linewidths play a game-changing role in a broad spectrum of applications ranging from coherent communication and LIDAR to metro…
Lithium niobate microring with ultra-high Q factor above 10^8
Renhong Gao, Ni Yao, Jianglin Guan +6
We demonstrate ultra-high Q factor microring resonators close to the intrinsic material absorption limit on lithium niobate on insulator. The microrings are fabricated on pristine…
On-chip ultra-narrow-linewidth single-mode microlaser on lithium niobate on insulator
Renhong Gao, Jianglin Guan, Ni Yao +8
We report an on-chip single mode microlaser with low-threshold fabricated on Erbium doped lithium niobate on insulator (LNOI). The single mode laser emission at 1550.5 nm wavelengt…
Broadband highly efficient nonlinear optical processes in on-chip integrated lithium niobate microdisk resonators of Q-factor above 10^8
Renhong Gao, Haisu Zhang, Fang Bo +9
We demonstrated broadband highly efficient optical nonlinear processes in on-chip integrated lithium niobate (LN) microdisk resonators. The Q factors of the micro-resonators fabric…
Photon retention in coherently excited nitrogen ions
Jinping Yao, Luojia Wang, Jinming Chen +12
Quantum coherence in quantum optics is an essential part of optical information processing and light manipulation. Alkali metal vapors, despite the numerous shortcomings, are tradi…
A spectrally bright wavelength-switchable vacuum ultraviolet source driven by quantum coherence in strong-field-ionized molecules
Yuexin Wan, Zhaoxiang Liu, Jinping Yao +6
We report generation of spectrally bright vacuum ultraviolet (VUV) and deep UV (DUV) coherent radiations driven by quantum coherence in tunnel-ionized carbon monoxide (CO) molecule…
High-precision measurement of a propagation loss of single-mode optical waveguides on lithium niobate on insulator
Jintian Lin, Junxia Zhou, Rongbo Wu +6
We demonstrate fabrication of single-mode optical waveguides on lithium niobate on insulator (LNOI) by optical patterning combined with chemo-mechanical polishing. The fabricated L…
Low-loss Lithium Niobate on Insulator (LNOI) Waveguides of a 10 cm-length and a Sub-nanometer Surface Roughness
Rongbo Wu, Min Wang, Jian Xu +9
We develop a technique for realizing lithium niobate on insulator (LNOI) waveguides of a multi-centimeter-length with a propagation loss as low as 0.027 dB/cm. Our technique relies…
Highly-efficient second and third harmonic generation in a monocrystalline lithium niobate microresonator
Jintian Lin, Yao Ni, Zhenzhong Hao +10
Nonlinear optics in whispering-gallery-mode (WGM) microresonators have attracted much attention. Owing to strong confinement of the light in a small volume, a WGM microresonator ca…
Electronic quantum coherence induced by strong field molecular ionization
Jinming Chen, Jinping Yao, Haisu Zhang +9
The existence of electronic coherence can fundamentally change the scenario of nonlinear interaction of light with quantum systems such as atoms and molecules, which, however, has…