Journal
OPTICA
Volume 3, Issue 8, Pages 823-826Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.3.000823
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Funding
- Teknologi og Produktion, Det Frie Forskningsrad [FTP 11-117031]
- Villum Fonden Centre of Foundation (NATEC)
- Villum Fonden [00008692] Funding Source: researchfish
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The combination of nonlinear and integrated photonics enables Kerr frequency comb generation in stable chip-based micro-resonators. Such a comb system will revolutionize applications, including multi-wavelength lasers, metrology, and spectroscopy. Aluminum gallium arsenide (AlGaAs) exhibits very high material nonlinearity and low nonlinear loss. However, difficulties in device processing and low device effective nonlinearity made Kerr frequency comb generation elusive. Here, we demonstrate AlGaAs-on-insulator as a nonlinear platform at telecom wavelengths with an ultra-high device nonlinearity. We show high-quality-factor (Q > 10(5)) micro-resonators where optical parametric oscillations are achieved with milliwatt-level pump threshold powers, which paves the way for on-chip pumped comb generation. (C) 2016 Optical Society of America
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