Ultra-high-Q UV microring resonators based on a single-crystalline AlN platform

Xianwen Liu; Alexander W. Bruch; Zheng Gong; Juanjuan Lu; Joshua B. Surya; Liang Zhang; Junxi Wang; Jianchang Yan; Hong X. Tang

doi:10.1364/OPTICA.5.001279

Ultra-high-Q UV microring resonators based on a single-crystalline AlN platform

Xianwen Liu, Alexander W. Bruch, Zheng Gong, Juanjuan Lu, Joshua B. Surya, Liang Zhang, Junxi Wang, Jianchang Yan, Hong X. Tang^*

^*Corresponding author for this work

Research output: Contribution to journal › Letter › peer-review

89 Citations (Scopus)

Abstract

Development of low-loss photonic components in the ultraviolet (UV) band will open new prospects for classical and quantum optics. Compared with other integrated platforms, aluminum nitride (AlN) is particularly attractive as it features an enormous bandgap of ∼6.2 eV and intrinsic χ² and χ³ susceptibilities. In this work, we demonstrate a record quality factor of 2.1 × 10⁵ (optical loss ∼8 dB∕cm) at 390 nm based on single-crystalline AlN microrings. The low-loss AlN waveguide represents a significant milestone toward UV photonic integrated circuits as it features full compatibility for future incorporation of AlGaN-based UV emitters and receivers. On-chip UV spectroscopy, nonlinear optics, and quantum information processing can also be envisioned.

Original language	English
Pages (from-to)	1279-1282
Number of pages	4
Journal	Optica
Volume	5
Issue number	10
DOIs	https://doi.org/10.1364/OPTICA.5.001279
Publication status	Published - 20 Oct 2018
Externally published	Yes

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title = "Ultra-high-Q UV microring resonators based on a single-crystalline AlN platform",

abstract = "Development of low-loss photonic components in the ultraviolet (UV) band will open new prospects for classical and quantum optics. Compared with other integrated platforms, aluminum nitride (AlN) is particularly attractive as it features an enormous bandgap of ∼6.2 eV and intrinsic χ2 and χ3 susceptibilities. In this work, we demonstrate a record quality factor of 2.1 × 105 (optical loss ∼8 dB∕cm) at 390 nm based on single-crystalline AlN microrings. The low-loss AlN waveguide represents a significant milestone toward UV photonic integrated circuits as it features full compatibility for future incorporation of AlGaN-based UV emitters and receivers. On-chip UV spectroscopy, nonlinear optics, and quantum information processing can also be envisioned.",

author = "Xianwen Liu and Bruch, {Alexander W.} and Zheng Gong and Juanjuan Lu and Surya, {Joshua B.} and Liang Zhang and Junxi Wang and Jianchang Yan and Tang, {Hong X.}",

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doi = "10.1364/OPTICA.5.001279",

language = "English",

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T1 - Ultra-high-Q UV microring resonators based on a single-crystalline AlN platform

AU - Liu, Xianwen

AU - Bruch, Alexander W.

AU - Gong, Zheng

AU - Lu, Juanjuan

AU - Surya, Joshua B.

AU - Zhang, Liang

AU - Wang, Junxi

AU - Yan, Jianchang

AU - Tang, Hong X.

PY - 2018/10/20

Y1 - 2018/10/20

N2 - Development of low-loss photonic components in the ultraviolet (UV) band will open new prospects for classical and quantum optics. Compared with other integrated platforms, aluminum nitride (AlN) is particularly attractive as it features an enormous bandgap of ∼6.2 eV and intrinsic χ2 and χ3 susceptibilities. In this work, we demonstrate a record quality factor of 2.1 × 105 (optical loss ∼8 dB∕cm) at 390 nm based on single-crystalline AlN microrings. The low-loss AlN waveguide represents a significant milestone toward UV photonic integrated circuits as it features full compatibility for future incorporation of AlGaN-based UV emitters and receivers. On-chip UV spectroscopy, nonlinear optics, and quantum information processing can also be envisioned.

AB - Development of low-loss photonic components in the ultraviolet (UV) band will open new prospects for classical and quantum optics. Compared with other integrated platforms, aluminum nitride (AlN) is particularly attractive as it features an enormous bandgap of ∼6.2 eV and intrinsic χ2 and χ3 susceptibilities. In this work, we demonstrate a record quality factor of 2.1 × 105 (optical loss ∼8 dB∕cm) at 390 nm based on single-crystalline AlN microrings. The low-loss AlN waveguide represents a significant milestone toward UV photonic integrated circuits as it features full compatibility for future incorporation of AlGaN-based UV emitters and receivers. On-chip UV spectroscopy, nonlinear optics, and quantum information processing can also be envisioned.

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U2 - 10.1364/OPTICA.5.001279

DO - 10.1364/OPTICA.5.001279

M3 - Letter

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VL - 5

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JO - Optica

JF - Optica

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Ultra-high-Q UV microring resonators based on a single-crystalline AlN platform

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