期刊
OPTICA
卷 8, 期 3, 页码 415-421出版社
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.415569
关键词
-
类别
资金
- National Science Foundation [1846273, 1918549]
- Army Research Office [W911NF-18-1-0285]
- U.S. Department of Defense [N00014-17-1-3030]
- Division of Computing and Communication Foundations
- Direct For Computer & Info Scie & Enginr [1918549] Funding Source: National Science Foundation
The engineered non-Hermitian systems with exceptional points (EPs) can lead to extraordinary phenomena in various fields. This study introduces the non-Hermitian dynamics of coupled optical parametric oscillators (OPOs) and highlights their advantages over conventional systems, showcasing unique potentials such as spectral anti-parity-time symmetry and advanced EP demonstrations. Coupled OPOs offer unprecedented opportunities for realizing nonlinear dynamical systems for enhanced sensing and quantum information processing.
Engineered non-Hermitian systems featuring exceptional points (EPs) can lead to a host of extraordinary phenomena in diverse fields ranging from photonics, acoustics, opto-mechanics, and electronics to atomic physics. In optics, non-Hermitian dynamics are typically realized using dissipation and phase-insensitive gain accompanied by unavoidable fluctuations. Here, we introduce non-Hermitian dynamics of coupled optical parametric oscillators (OPOs) arising from phase-sensitive amplification and de-amplification, and show their distinct advantages over conventional non-Hermitian systems relying on laser gain and loss. OPO-based non-Hermitian systems can benefit from the instantaneous nature of the parametric gain, noiseless phase-sensitive amplification, and rich quantum and classical nonlinear dynamics. We show that two coupled OPOs can exhibit spectral anti-parity-time (anti-PT) symmetry and a EP between its degenerate and nondegenerate operation regimes. To demonstrate the distinct potentials of the coupled OPO system compared to conventional non-Hermitian systems, we present higher-order EPs with two OPOs, tunable Floquet EPs in a reconfigurable dynamic non-Hermitian system, and the generation of a squeezed vacuum around EPs, all of which are not easy to realize in other non-Hermitian platforms. We believe our results show that coupled OPOs are an outstanding non-Hermitian setting with unprecedented opportunities to realize nonlinear dynamical systems for enhanced sensing and quantum information processing. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据