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首页> 外文会议>2017 Conference on Lasers and Electro-Optics Europe amp; European Quantum Electronics Conference >Coherent conversion of sub-GHz optical pulse bandwidths for hybrid quantum networks
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Coherent conversion of sub-GHz optical pulse bandwidths for hybrid quantum networks

机译：用于混合量子网络的低于GHz的光脉冲带宽的相干转换

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摘要

A promising approach towards implementation of large-scale quantum information and communication protocols is a multifunctional photonic quantum information processing system, where a variety of distributed components, such as quantum memories, trapped ions, or photonic quantum gates are coherently interconnected via photonic links. These components may exhibit a vast range of spectro-temporal properties. A key incompatibility is spectral bandwidth mismatch. For example the characteristic bandwidths of photonic communication channels and nonlinear-optical single-photon sources are in the 100 GHz range, whereas typical bandwidths associated with trapped ions or media exhibiting strong single photon nonlinearity, such as Rydberg atoms, are in the sub-GHz regime, reaching single MHz values. Single-photon-level bandwidth conversion has been experimentally demonstrated by techniques based on the temporal lensing principle, but only between multi-GHz bandwidth optical pulses [1, 2]. Here we present a numerical study of an electro-optic time-lens-based technique enabling bandwidth conversion from the 100 GHz bandwidth region towards single MHz bandwidths. We discuss progress towards experimental implementation and possible realizations using alternative temporal lensing platforms, such as three and four wave mixing.
机译：多功能光子量子信息处理系统是实现大规模量子信息和通信协议的一种有前途的方法，在该系统中，各种分布式组件（如量子存储器，捕获的离子或光子量子门）通过光子链路相干地互连。这些成分可能表现出广泛的光谱时间特性。关键的不兼容性是频谱带宽不匹配。例如，光子通信通道和非线性光学单光子源的特征带宽在100 GHz范围内，而与捕获离子或表现出强烈单光子非线性的介质（例如里德堡原子）相关的典型带宽在Sub-GHz之内达到单MHz值。单光子级带宽转换已通过基于时间透镜原理的技术进行了实验证明，但仅在多GHz带宽的光脉冲之间[1，2]。在这里，我们对基于电光镜头的技术进行了数值研究，该技术能够将带宽从100 GHz带宽区域转换为单MHz带宽。我们讨论了使用替代时间透镜平台（例如三波和四波混频）的实验实现和可能实现的进展。

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