@article{6a324ac3d86e4e028428dc22aeea5a5e,
title = "400%/W second harmonic conversion efficiency in 14 µm-diameter gallium phosphide-on-oxide resonators",
abstract = "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 ∼ 104, low mode volumes V ∼ 30(λ/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.",
author = "Logan, {Alan D.} and Michael Gould and Schmidgall, {Emma R.} and Karine Hestroffer and Zin Lin and Weiliang Jin and Arka Majumdar and Fariba Hatami and Rodriguez, {Alejandro W.} and Fu, {Kai Mei C.}",
note = "Funding Information: National Science Foundation (NSF) (EFMA-1640986, DMR-1454836, NNCI-1542101). We thank Taylor Fryett with assistance in optical testing, and N. Shane Patrick for advice on electron beam lithography. Part of this work was conducted at the Washington Nanofabrication Facility, a National Nanotechnology Coordinated Infrastructure (NNCI) site at the University of Washington. Publisher Copyright: {\textcopyright} 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement",
year = "2018",
month = dec,
day = "24",
doi = "10.1364/OE.26.033687",
language = "English (US)",
volume = "26",
pages = "33687--33699",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "26",
}