444 citations · 1.2k across the 15 of their papers we have counts for
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Symmetric Second-Harmonic Generation in Sub-wavelength Periodically Poled Thin Film Lithium Niobate
Fengyan Yang, Juanjuan Lu, Mohan Shen +2
Second harmonic generation (SHG) extensively employs periodically poled nonlinear crystals through forward quasi-phase-matching to achieve efficient frequency conversion. As poling…
Two-colour dissipative solitons and breathers in microresonator second-harmonic generation
Juanjuan Lu, Danila N. Puzyrev, Vladislav V. Pankratov +5
Frequency conversion of dissipative solitons associated with the generation of broadband optical frequency combs having a tooth spacing of hundreds of giga-hertz is a topical chall…
Monolithic Kerr and electro-optic hybrid microcombs
Zheng Gong, Mohan Shen, Juanjuan Lu +2
Advances in microresonator-based soliton generation promise chip-scale integration of optical frequency comb for applications spanning from time keeping to frequency synthesis. Min…
Efficient and tunable blue light generation using lithium niobate nonlinear photonics
Ayed Al Sayem, Yubo Wang, Juanjuan Lu +3
Thin film lithium niobate (LN) has recently emerged as a playground for chip-scale nonlinear optics and leads to highly efficient frequency conversions from near infrared to near-v…
Ultralow-threshold thin-film lithium niobate optical parametric oscillator
Juanjuan Lu, Ayed Al Sayem, Zheng Gong +3
Materials with strong optical nonlinearity, especially lithium niobate, play a critical role in building optical parametric oscillators (OPOs). However, chip-scale integr…
Mitigating photorefractive effect in thin-filmlithium niobate microring resonators
Yuntao Xu, Mohan Shen, Juanjuan Lu +3
Thin-film lithium niobate is an attractive integrated photonics platform due to its low optical loss and favorable optical nonlinear and electro-optic properties. However, in appli…
Stable tuning of photorefractive micro-cavities using an auxiliary laser
Joshua B. Surya, Juanjuan Lu, Yuntao Xu +1
Cavity nonlinear optics enables intriguing physical phenomena to occur at micro- or nano-scales with modest input powers. While this enhances capabilities in applications such as c…
Photonic dissipation control for Kerr soliton generation in strongly Raman-active media
Zheng Gong, Ming Li, Xianwen Liu +6
Microcavity solitons enable miniaturized coherent frequency comb sources. However, the formation of microcavity solitons can be disrupted by stimulated Raman scattering (SRS), part…
Towards 1% single photon nonlinearity with periodically-poled lithium niobate microring resonators
Juanjuan Lu, Ming Li, Chang-Ling Zou +2
The absence of the single-photon nonlinearity has been a major roadblock in developing quantum photonic circuits at optical frequencies. In this paper, we demonstrate a periodicall…
Periodically poled thin film lithium niobate microring resonators with a second-harmonic generation efficiency of 250,000%/W
Juanjuan Lu, Joshua B. Surya, Xianwen Liu +4
Lithium niobate (LN), dubbed by many as the silicon of photonics, has recently risen to the forefront of chip-scale nonlinear optics research since its demonstration as an ultralow…
Beyond 100 THz-spanning ultraviolet frequency combs in a non-centrosymmetric crystalline waveguide
Xianwen Liu, Alexander W. Bruch, Juanjuan Lu +6
Ultraviolet frequency combs enable applications ranging from precision spectroscopy to atomic clocks by addressing the electronic transitions of atoms and molecules. Access to ultr…