量子电子学报 ›› 2024, Vol. 41 ›› Issue (4): 616-625.doi: 10.3969/j.issn.1007-5461.2024.04.006

• 量子光学 • 上一篇    下一篇

基于相位调制的非互易反射光放大动力学调控

裴笑山, 李观荣, 张焓笑, 杨 红*   

  1. ( 海南师范大学物理与电子工程学院, 海南 海口 571158 )
  • 收稿日期:2023-03-16 修回日期:2023-04-04 出版日期:2024-07-28 发布日期:2024-07-28
  • 通讯作者: E-mail: yang_hongbj@126.com E-mail:E-mail: yang_hongbj@126.com
  • 作者简介:裴笑山 ( 1996 - ), 辽宁大连人, 研究生, 主要从事量子光学方面的研究。E-mail: peiallen3@gmail.com
  • 基金资助:
    国家自然科学基金 (12204137, 12126314, 12126351, 11861031), 海南省自然科学基金 (122QN302, 121RC539, 2019RC190), 海南省院士 创新平台 (YSPTZX202215)

Dynamical manipulation of non‐reciprocal reflected light amplification based on phase modulation

PEI Xiaoshan, LI Guanrong, ZHANG Hanxiao, YANG Hong*   

  1. ( School of Physics and Electronic Engineering, Hainan Normal University, Haikou 571158, China )
  • Received:2023-03-16 Revised:2023-04-04 Published:2024-07-28 Online:2024-07-28

摘要: 基于光学非互易性的新型光子器件是信息处理的关键, 由于信息在传递的过程中很容易减弱, 因此如何放 大光信号是该领域的研究热点之一。本文提出一种简单的方案实现了非互易光放大。该方案首先利用一个强耦合 场和一个微波场控制一个弱探测场构成三能级 V 模型相干增益原子系统, 使探测光信号在透明窗口处能够被放大; 再通过控制耦合场强度随位置变化破坏极化率空间对称性, 使得探测光从介质两侧入射的反射率不再互易, 进而得 到放大的非互易反射; 最后, 通过调制激光场之间相对相位来探究其非互易反射带放大的范围。数值结果显示, 相对 相位Φ = 0, π 和 3π/2 时,只有一个非互易频率域的反射带被放大; 而当 Φ = π/2 时, 出现两个频率域内放大的非互易 反射带, 放大范围为1.25~2.75倍。可见, 该系统能够实现非互易反射光放大的动力学调控。

关键词: 量子光学, 光学非互易, 相位调制, 反射光放大, 动力学调控

Abstract: The development of new photonic devices based on optical non-reciprocity is crucial for information processing. As information tends to be weakened during transmission, achieving amplified optical signals is a major focus of scientific research in this field. This paper proposes a simple regime to achieve amplified non-reciprocal reflection. Firstly, a strong coupling field and a microwave field are used to control a weak probe field to form a three-level coherent atomic system, enabling the detection light signal to be amplified at the transparent window. Then, the symmetry of probe susceptibility is broken utilizing the linear variation of coupling field, leading to the realization of non-reciprocal light reflection amplification. Finally, the amplification range of non-reciprocal reflection bands is modulated by adjusting the relative phase between laser fields. The numerical results demonstrate that in the nonreciprocal frequency domain, when the relative phase is Φ = 0, π, and 3π/2, only one reflection band is amplified. However, when the relative phase reaches Φ = π/2, two non-reciprocal reflection bands are amplified simultaneously with a magnification range of 1.25-1.75 times. It is shown that the proposed regime can achieve dynamic manipulation of non-reciprocal reflection.

Key words: quantum optics, optical non-reciprocity, phase modulation, reflected light amplification; dynamical manipulation

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