Abstract

This paper studies the response of a parity-time-symmetric Laguerre-Gaussian-cavity optomechanical system to a weak probe field, where an active cavity is coupled to a Laguerre-Gaussian rovibrational-cavity system. It is shown that three-amplification-peak profile emerges for the probe transmission. The transmission rate can be adjusted by controlling the coupling coefficient, the pump amplitude and the topological charge. Besides, we find that the light transmission group delay can be altered between positive and negative value by adjusting the coupling coefficient and the topological charge. This study can be applied to light propagation manipulation and quantum precision measurement.

Graphical abstract

中文翻译：

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奇偶时间对称的Laguerre-Gaussian振动腔系统中的多通道光机械诱导放大

摘要

本文研究了一个奇偶-时间对称的Laguerre-Gaussian-cavity光学机械系统对弱探测场的响应，在该区域中，一个有源腔与Laguerre-Gaussian振动-空腔系统耦合。结果表明，出现了三个放大峰分布，用于探针传输。可以通过控制耦合系数，泵浦振幅和拓扑电荷来调整传输速率。此外，我们发现通过调整耦合系数和拓扑电荷，可以在正负值之间改变光传输群延迟。该研究可应用于光传播操纵和量子精度测量。

图形概要