Abstract

Chip-scale mode-locked dissipative Kerr solitons have been realized on various materials platforms, making it possible to achieve a miniature, highly coherent frequency comb source with high repetition rates. Aluminum nitride (AlN), an appealing nonlinear optical material having both Kerr (${\chi }^3$), and Pockels (${\chi }^2$) effects, has immerse potential for comb self-referencing without the need for external harmonic generators. However, cavity soliton states have not yet been achieved in AlN microresonators. Here, we demonstrate mode-locked Kerr cavity soliton generation in a crystalline AlN microring resonator. By utilizing ultrafast tuning of the pump frequency through single-sideband modulation, in combination with an optimized wavelength scan and pump power-ramp patterns, we can deterministically elongate a $\sim 400\mathrm{ns}$ short-lived soliton to a time span as long as we wish to hold it.

© 2018 Optical Society of America

Quadratic strong coupling in AlN Kerr cavity solitons

Zheng Gong, Alexander W. Bruch, Fengyan Yang, Ming Li, Juanjuan Lu, Joshua B. Surya, Chang-Ling Zou, and Hong X. Tang
Opt. Lett. 47(4) 746-749 (2022)

Near-octave-spanning breathing soliton crystal in an AlN microresonator

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Opt. Lett. 46(14) 3436-3439 (2021)

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

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Optica 5(10) 1279-1282 (2018)

Soliton microcomb generation at 2  μm in z-cut lithium niobate microring resonators

Zheng Gong, Xianwen Liu, Yuntao Xu, Mingrui Xu, Joshua B. Surya, Juanjuan Lu, Alexander Bruch, Changling Zou, and Hong X. Tang
Opt. Lett. 44(12) 3182-3185 (2019)

Green, red, and IR frequency comb line generation from single IR pump in AlN microring resonator

Hojoong Jung, Rebecca Stoll, Xiang Guo, Debra Fischer, and Hong X. Tang
Optica 1(6) 396-399 (2014)