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Hybrid BaTiO3/TiO2 Metasurface for Efficient Gigahertz-Speed Free-Space Electro-Optic Modulation
Zhongpeng Sun, Kerolos M. A. Yousef, Michael Domm +13
Free-space electro-optic modulators are key to emerging photonic systems, yet their performance remains limited by trade-offs between modulation efficiency, bandwidth, and device a…
Integrated lithium niobate photonic computing circuit based on efficient and high-speed electro-optic conversion
Yaowen Hu, Yunxiang Song, Xinrui Zhu +24
Here we show a photonic computing accelerator utilizing a system-level thin-film lithium niobate circuit which overcomes this limitation. Leveraging the strong electro-optic (Pocke…
Large-area photonic circuits for terahertz detection and beam profiling
A. Tomasino, A Shams-Ansari, M. Lončar +1
Deployment of terahertz communication and spectroscopy systems relies on the availability of low-noise and fast detectors, with plug-and-play capabilities. However, most currently…
A Thin Film Lithium Niobate Near-Infrared Platform for Multiplexing Quantum Nodes
Daniel Assumpcao, Dylan Renaud, Aida Baradari +7
Practical quantum networks will require quantum nodes consisting of many memory qubits. This in turn will increase the complexity of the photonic circuits needed to control each qu…
Integrated electro-optics on thin-film lithium niobate
Yaowen Hu, Di Zhu, Shengyuan Lu +13
Electro-optics serves as the crucial bridge between electronics and photonics, unlocking a wide array of applications ranging from communications and computing to sensing and quant…
Twenty-nine million Intrinsic Q-factor Monolithic Microresonators on Thin Film Lithium Niobate
Xinrui Zhu, Yaowen Hu, Shengyuan Lu +7
The recent emergence of thin-film lithium niobate (TFLN) has extended the landscape of integrated photonics. This has been enabled by the commercialization of TFLN wafers and advan…
Integrated resonant electro-optic comb enabled by platform-agnostic laser integration
Isaac Luntadila Lufungula, Amirhassan Shams-Ansari, Dylan Renaud +7
The field of integrated photonics has significantly impacted numerous fields including communication, sensing, and quantum physics owing to the efficiency, speed, and compactness o…
Cross-Polarized Stimulated Brillouin Scattering in Lithium Niobate Waveguides
Caique C. Rodrigues, Nick J. Schilder, Roberto O. Zurita +7
We report on the experimental demonstration of cross-polarization backward stimulated Brillouin scattering (BSBS) in lithium niobate on insulator (LNOI) waveguides. Performing pola…
Frequency comb generation via synchronous pumped resonator on thin-film lithium niobate
Rebecca Cheng, Mengjie Yu, Amirhassan Shams-Ansari +4
Resonator-based optical frequency comb generation is an enabling technology for a myriad of applications ranging from communications to precision spectroscopy. These frequency comb…
Sub-1 Volt and High-Bandwidth Visible to Near-Infrared Electro-Optic Modulators
Dylan Renaud, Daniel Rimoli Assumpcao, Graham Joe +5
Integrated electro-optic (EO) modulators are fundamental photonics components with utility in domains ranging from digital communications to quantum information processing. At tele…
Terahertz waveform synthesis from integrated lithium niobate circuits
Alexa Herter, Amirhassan Shams-Ansari, Francesca Fabiana Settembrini +4
Bridging the "terahertz (THz) gap" relies upon synthesizing arbitrary waveforms in the THz domain enabling applications that require both narrow band sources for sensing and few-cy…
Reduced Material Loss in Thin-film Lithium Niobate Waveguides
Amirhassan Shams-Ansari, Guanhao Huang, Lingyan He +12
Thin-film lithium niobate has shown promise for scalable applications ranging from single-photon sources to high-bandwidth data communication systems. Realization of the next gener…
Spectrally separable photon-pair generation in dispersion engineered thin-film lithium niobate
C. J. Xin, Jatadhari Mishra, Changchen Chen +7
Existing nonlinear-optic implementations of pure, unfiltered heralded single-photon sources do not offer the scalability required for densely integrated quantum networks. Additiona…
High-efficiency and broadband electro-optic frequency combs enabled by coupled micro-resonators
Yaowen Hu, Mengjie Yu, Brandon Buscaino +8
Developments in integrated photonics have led to stable, compact, and broadband comb generators that support a wide range of applications. Current on-chip comb generators, however,…
Gigahertz free-space electro-optic modulators based on Mie resonances
Ileana-Cristina Benea-Chelmus, Sydney Mason, Maryna L. Meretska +5
Electro-optic modulators from non-linear materials are essential for sensing, metrology and telecommunications because they link the optical domain with the microwave dom…
Integrated photonics on thin-film lithium niobate
Di Zhu, Linbo Shao, Mengjie Yu +12
Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for decades: from enabling high-speed optical communications that form the backbone of th…
Reconfigurable electro-optic frequency shifter
Yaowen Hu, Mengjie Yu, Di Zhu +7
Here we demonstrate an on-chip electro-optic frequency shifter that is precisely controlled using only a single-tone microwave signal. This is accomplished by engineering the densi…
High-dimensional frequency crystals and quantum walks in electro-optic microcombs
Christian Reimer, Yaowen Hu, Amirhassan Shams-Ansari +2
Synthetic optical structures have enabled studies of various physical processes and discoveries of new phenomena in a controllable manner. Past realizations, using for example coup…
Supercontinuum generation in angle-etched diamond waveguides
Amirhassan Shams-Ansari, Pawel Latawiec, Yoshitomo Okawachi +8
We experimentally demonstrate on-chip supercontinuum generation in the visible region in angle etched diamond waveguides. We measure an output spectrum spanning 670 nm to 920 nm in…
Electronically Programmable Photonic Molecule
Mian Zhang, Cheng Wang, Yaowen Hu +4
Physical systems with discrete energy levels are ubiquitous in nature and are fundamental building blocks of quantum technology. Realizing controllable artifcial atom- and molecule…
Broadband electro-optic frequency comb generation in an integrated microring resonator
Mian Zhang, Brandon Buscaino, Cheng Wang +5
Optical frequency combs consist of equally spaced discrete optical frequency components and are essential tools for optical communications and for precision metrology, timing and s…
Monolithic Ultrahigh-Q Lithium Niobate Microring Resonator
Mian Zhang, Cheng Wang, Rebecca Cheng +2
We demonstrate an ultralow loss monolithic integrated lithium niobate photonic platform consisting of dry-etched subwavelength waveguides. We show microring resonators with a quali…
An integrated diamond Raman laser pumped in the near-visible
Pawel Latawiec, Vivek Venkataraman, Amirhassan Shams-Ansari +2
Using a high-Q diamond microresonator (Q > 300,000) interfaced with high-power-handling directly-written doped-glass waveguides, we demonstrate a Raman laser in an integrated platf…