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Ultra-efficient frequency conversion in quasi-phase-matched lithium niobate microrings

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TLDR
In this paper, a chip-integrated lithium niobate microring resonator with a quasi-phase-matched frequency conversion achieved 230,000%/W or 10−6 per single photon.
Abstract
We demonstrate quasi-phase-matched frequency conversion in a chip-integrated lithium niobate microring resonator, whose normalized efficiency reaches 230,000%/W or 10−6 per single photon.

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Citations
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Journal ArticleDOI

Integrated photonics on thin-film lithium niobate

TL;DR: In this article, the authors present a review of the state-of-the-art integrated thin-film LNOI photonics, including the materials, basic passive components, and various active devices based on electro-optics, all-optical nonlinearities, and acousto-optic.
Journal ArticleDOI

Integrated photonics on thin-film lithium niobate

TL;DR: From basic principles to the state of the art—the diverse aspects of integrated thin-film LN photonics, including the materials, basic passive components, and various active devices based on electro-optics, all-optical nonlinearities, and acousto- optics are covered.
Journal ArticleDOI

Periodically poled thin-film lithium niobate microring resonators with a second-harmonic generation efficiency of 250,000%/W

TL;DR: In this paper, a dual-resonant, periodically poled z-cut LN microring is proposed for second-harmonic generation (SHG), where quasi-phase matching is realized by field-assisted domain engineering.
Journal ArticleDOI

Advances in on-chip photonic devices based on lithium niobate on insulator

TL;DR: In this paper, the authors present various on-chip LNOI devices categorized into nonlinear photonic and electro-optic tunable devices and photonic-integrated circuits.
Journal ArticleDOI

Ion-cut lithium niobate on insulator technology: Recent advances and perspectives

TL;DR: A timely review of the key advances in LNOI technology and a reasonable perspective on the near-future directions for both integrated photonics and applied physics communities are provided.
References
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Journal ArticleDOI

Monolithic ultra-high-Q lithium niobate microring resonator

TL;DR: In this article, an ultralow loss monolithic integrated lithium niobate photonic platform consisting of dry-etched subwavelength waveguides with extracted propagation losses as low as 2.7dB/m and microring resonators with quality factors up to 107.
Journal ArticleDOI

Monolithic Ultrahigh-Q Lithium Niobate Microring Resonator

TL;DR: In this paper, an ultralow loss monolithic integrated lithium niobate photonic platform consisting of dry-etched subwavelength waveguides is presented, with a quality factor of 10$^7$ and propagation loss as low as 2.7 dB/m.
Journal ArticleDOI

Ultrahigh-efficiency wavelength conversion in nanophotonic periodically poled lithium niobate waveguides

TL;DR: In this article, a nanostructured PPLN waveguide was used to demonstrate an ultrahigh normalized efficiency of 2600%/W−cm2 for second-harmonic generation of 1.5μm radiation, more than 20 times higher than that in state-of-the-art diffused waveguides.
Journal ArticleDOI

Ultrahigh-efficiency second-harmonic generation in nanophotonic PPLN waveguides

TL;DR: In this paper, a nanostructured PPLN waveguide is used to demonstrate an ultrahigh normalized efficiency of 2600%/W-cm$^2$ for second-harmonic generation of 1.5-m radiation, more than 20 times higher than that in state-of-the-art diffused waveguides.
Journal ArticleDOI

Broadband Quasi-Phase-Matched Harmonic Generation in an On-Chip Monocrystalline Lithium Niobate Microdisk Resonator.

TL;DR: A unique broadband natural quasi-phase-matching (QPM) mechanism underlying an observation of highly efficient second- and third-order harmonic generation at multiple wavelengths in an x-cut lithium niobate (LN) microdisk resonator is revealed.
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