Journal
OPTICS EXPRESS
Volume 26, Issue 26, Pages 33687-33699Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.26.033687
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Funding
- National Science Foundation (NSF) [EFMA-1640986, DMR-1454836, NNCI-1542101]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1454836] Funding Source: National Science Foundation
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Second harmonic conversion from 1550 nm to 775 nm with an efficiency of 400 % W-1 is demonstrated in a gallium phosphide (GaP) on oxide integrated photonic platform. The platform consists of doubly-resonant, phase-matched ring resonators with quality factors Q similar to 10(4), low mode volumes V similar to 30(lambda/n)(3), and high nonlinear mode overlaps. Measurements and simulations indicate that conversion efficiencies can be increased by a factor of 20 by improving the waveguide-cavity coupling to achieve critical coupling in current devices. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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