Chizhevsky V N
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220068, Belarus.
Philos Trans A Math Phys Eng Sci. 2021 Mar 8;379(2192):20200241. doi: 10.1098/rsta.2020.0241. Epub 2021 Jan 18.
The paper presents the results of the experimental study of an application of the phenomenon of vibrational resonance (VR) for enhancement of the response of a bistable vertical-cavity surface-emitting laser (VCSEL) to the effect of optical modulating signals. Specifically, two different cases were investigated: (a) the control of all-optical switching caused by a modulated orthogonal optical injection from another VCSEL and (b) the amplification of autodyne signals from a vibrating diffusely reflecting surface in the self-mixing optical interferometry. It is experimentally demonstrated that an application of the phenomenon of VR in both cases studied leads to a strong amplification of the input optical signals by a factor from 10 to 200 depending on the experimental conditions with respect to the initial values. The effect of the asymmetry of a bistable potential on the amplification factor was also studied. The results obtained can be used to improve all-optical switchings for application in communication systems and enhancement of autodyne signals in self-mixing optical interferometry. This article is part of the theme issue 'Vibrational and stochastic resonance in driven nonlinear systems (part 1)'.
本文介绍了利用振动共振（VR）现象增强双稳态垂直腔面发射激光器（VCSEL）对光调制信号响应的实验研究结果。具体而言，研究了两种不同情况：（a）由来自另一个VCSEL的调制正交光注入引起的全光开关控制，以及（b）自混合光学干涉测量中来自振动漫反射表面的自差信号放大。实验证明，在所研究的两种情况下应用VR现象，根据相对于初始值的实验条件，可使输入光信号强烈放大10至200倍。还研究了双稳态势的不对称性对放大因子的影响。所得结果可用于改进通信系统中应用的全光开关，以及增强自混合光学干涉测量中的自差信号。本文是主题为“驱动非线性系统中的振动和随机共振（第1部分）”的一部分。
