Journal
SCIENTIFIC REPORTS
Volume 7, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep46313
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Funding
- Stanford Graduate Fellowship
- Department of Physics Undergraduate Summer Research Fellowship
- NSF [ECCS-1509107]
- Stanford Terman Fellowship
- Stanford Nano Shared Facilities (SNSF)
- Stanford Nanofabrication Facility (SNF)
- start-up funds from Stanford University
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1509107] Funding Source: National Science Foundation
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Future quantum networks, in which superconducting quantum processors are connected via optical links, will require microwave-to-optical photon converters that preserve entanglement. A doubly-resonant electro-optic modulator (EOM) is a promising platform to realize this conversion. Here, we present our progress towards building such a modulator by demonstrating the optically-resonant half of the device. We demonstrate high quality (Q) factor ring, disk and photonic crystal resonators using a hybrid silicon-on-lithium-niobate material system. Optical Q factors up to 730,000 are achieved, corresponding to propagation loss of 0.8 dB/cm. We also use the electro-optic effect to modulate the resonance frequency of a photonic crystal cavity, achieving a electro-optic modulation coefficient between 1 and 2 pm/V. In addition to quantum technology, we expect that our results will be useful both in traditional silicon photonics applications and in high-sensitivity acousto-optic devices.
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