All-optical shaping of a three-dimensional self-induced transparency soliton in 87Rb vapors

IF 0.5 4区 物理与天体物理 Q4 OPTICS Journal of Optical Technology Pub Date : 2023-05-01 DOI:10.1364/jot.90.000227
Sergey N. Bagaev, Igor B. Mekhov, Igor A. Chekhonin, Mikhail A. Chekhonin
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Abstract

Subject of study. Three-dimensional solitons of the theory of self-induced transparency of laser pulses with a converging cylindrical wavefront and different transverse spatial profiles of the pulse field in 87Rb vapor (resonant transition D2, wavelength 780.24 nm) are studied. Aim of study. The aim is the experimental study of three-dimensional solitons of self-induced transparency of laser pulses for the development of new device prototypes for resonant quantum microwave photonics using laser signal processing methods in the microwave region of the spectrum. Method. In the caustic of a focused beam of a laser pump pulse with a cylindrical wavefront, a transverse spatial profile of the electric field strength of a special shape is created. The computer-generated holograms developed by us can be used to create an arbitrary profile. Main results. The properties of a three-dimensional self-induced transparency soliton are studied for various detuning frequencies of the input pulse field with respect to atomic resonance. The maximum laser pulse power is 8.5 mW, the pulse duration is 4–5 ns, and the time resolution of the recording system is 27 ps. It is shown that the all-optical control of the carrier frequency of the input pulse determines the properties of the output pulse: compression of the pulse duration (generation of a strobe pulse), the value of the soliton delay in time, and the time shift of the carrier frequency of the soliton. Practical significance. The results obtained in this study of the properties of three-dimensional self-induced transparency solitons will serve as the basis for the development of prototypes of signal processing devices using low-power laser diodes.
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87Rb蒸气中三维自诱导透明孤子的全光学成形
研究主题。研究了87Rb蒸汽(共振跃迁D2,波长780.24 nm)中具有会聚圆柱波前和不同脉冲场横向空间分布的激光脉冲自激透明理论的三维孤子。研究目的。目的是对激光脉冲自诱导透明的三维孤子进行实验研究,利用光谱微波区的激光信号处理方法开发谐振量子微波光子学的新器件原型。方法。在具有圆柱形波前的激光泵浦脉冲聚焦光束的焦散中,产生了一个特殊形状的电场强度的横向空间剖面。我们开发的计算机生成全息图可以用来创建任意的侧面。主要的结果。研究了输入脉冲场不同失谐频率下三维自激透明孤子的原子共振特性。激光脉冲的最大功率为8.5 mW,脉冲持续时间为4-5 ns,记录系统的时间分辨率为27 ps。结果表明,输入脉冲的载波频率的全光控制决定了输出脉冲的特性:脉冲持续时间的压缩(产生频闪脉冲)、孤子的时间延迟值和孤子载波频率的时移。现实意义。本研究获得的三维自激透明孤子性质的研究结果将作为开发使用低功率激光二极管的信号处理设备原型的基础。
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来源期刊
CiteScore
0.90
自引率
25.00%
发文量
66
审稿时长
3-8 weeks
期刊介绍: The journal publishes design details of a diversity of optical instruments, along with a strong section on computational optics useful to engineers, mathematicians, and physicists, as well as optical scientists. Issues of the English translation volume are published by OSA and appear at the same time as the Russian language edition, Opticheskii Zhurnal, which is produced by the Vavilov State Optical Institute
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