On-chip quantum optics and integrated optomechanics

Authors

DAVID HOCH
TIMO SOMMER
SEBASTIAN MUELLER
MENNO POOT

Abstract

Recent developments in quantum computing and the growing interest in optomechanics and quantum optics need platforms that enable rapid prototyping and scalability. This can be fulfilled by on-chip integration, as we present here. The different nanofabrication steps are explained, and our automated measurement setup is discussed. We present an opto-electromechanical device, the H-resonator, which enables optomechanical experiments such as electrostatic springs and nonlinearities and thermomechanical squeezing. Moreover, it also functions as an optomechanical phase shifter, an essential element for our integrated quantum optics efforts. Besides this, the equivalent of a beam splitter in photonics-the directional coupler-is shown. Its coupling ratio can be reliably controlled, as we show with experimental data. Several directional couplers combined can realize the CNOT operation with almost ideal fidelity.

DOI

10.3906/fiz-2004-20

Keywords

Integrated quantum optics, optomechanics, squeezing, feedback

First Page

239

Last Page

246

Recommended Citation

HOCH, DAVID; SOMMER, TIMO; MUELLER, SEBASTIAN; and POOT, MENNO (2020) "On-chip quantum optics and integrated optomechanics," Turkish Journal of Physics: Vol. 44: No. 3, Article 1. https://doi.org/10.3906/fiz-2004-20
Available at: https://journals.tubitak.gov.tr/physics/vol44/iss3/1