Piezoelectric Optomechanical Approaches for Efficient Quantum Microwave-to-Optical Signal Transduction: The Need for Co-Design

Krishna Coimbatore Balram, Kartik A. Srinivasan

Research output: Contribution to journalReview article (Academic Journal)peer-review

19 Citations (Scopus)

Abstract

Piezoelectric optomechanical platforms represent one of the most promising routes toward achieving quantum transduction of photons between the microwave and optical frequency domains. However, there are significant challenges to achieving near-unity transduction efficiency. The authors discuss such factors in the context of the two main approaches being pursued for high efficiency transduction. The first approach uses 1D nanobeam optomechanical crystals excited by interdigitated transducers and is characterized by large single-photon optomechanical coupling strength, limited intracavity pump photon population to avoid absorption-induced heating (at cryogenic temperature), and low phonon injection efficiency from the transducer to the optomechanical cavity. The second approach uses (quasi) bulk acoustic wave resonators integrated into photonic Fabry–Perot cavity geometries and is characterized by low single-photon optomechanical coupling strength, high intracavity pump photon population without significant heating, and high phonon injection efficiency. After reviewing the current status of both approaches, the need for co-designing the electromechanical and optomechanical sub-systems is discussed in order to achieve high transduction efficiencies, taking the GaAs piezo-optomechanical platform as an example.
Original languageEnglish
Article number2100095
Number of pages14
JournalAdvanced Quantum Technologies
Volume5
Issue number3
DOIs
Publication statusPublished - 17 Jan 2022

Bibliographical note

Funding Information:
K.C.B. would like to thank the European Research Council for funding support (ERC-StG, SBS3-5 758843). K.S. thanks the ARO/LPS CQTS program for funding support. The authors thank Biswarup Guha, Seung-Bo Shim, and Marcelo Wu for useful?discussions.

Funding Information:
K.C.B. would like to thank the European Research Council for funding support (ERC‐StG, SBS3‐5 758843). K.S. thanks the ARO/LPS CQTS program for funding support. The authors thank Biswarup Guha, Seung‐Bo Shim, and Marcelo Wu for useful discussions.

Publisher Copyright:
Published 2022. This article is a U.S. Government work and is in the public domain in the USA

Structured keywords

  • Bristol Quantum Information Institute
  • Photonics and Quantum

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