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Pseudo-phase conjugate reverse modulator based on optical abnormal transmission

A technology of phase conjugation and reverse modulation, used in optics, optical components, nonlinear optics, etc.

Pending Publication Date: 2022-04-01
HANGZHOU DIANZI UNIV
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  • Description
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Problems solved by technology

[0003] Aiming at the problem of high-speed modulation in the prior art, the present invention provides a pseudo-phase conjugate inverse modulator based on optical anomalous transmission

Method used

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  • Pseudo-phase conjugate reverse modulator based on optical abnormal transmission
  • Pseudo-phase conjugate reverse modulator based on optical abnormal transmission
  • Pseudo-phase conjugate reverse modulator based on optical abnormal transmission

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Embodiment 2

[0021] Such as Figure 5 As shown, the optical modulation layer 1 of this embodiment is disposed inside the optically abnormal transmission layer 2, and the electromagnetic characteristics and phase change characteristics of the optical modulation layer 1 embedded in the optically abnormal transmission layer 2 can be adjusted by an external electric field and an optical field, Therefore, the surface plasmons can be tuned to a certain extent, so as to control the intensity of the anomalous transmission of light waves in a certain wavelength band.

[0022] For other content of this embodiment, reference may be made to Embodiment 1.

[0023] The invention discloses a pseudo-phase conjugate inverse modulator based on optical anomalous transmission, which is composed of an optical modulation layer, an optical anomalous transmission layer and an optical reflection layer, and the optical anomalous transmission layer can realize mutual conversion between light waves and surface plasmo...

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Abstract

The invention discloses a pseudo-phase conjugate reverse modulator based on optical abnormal transmission. The pseudo-phase conjugate reverse modulator comprises an optical modulation layer, an optical abnormal transmission layer and an optical reflection layer. The optical modulation layer is attached to one surface of the optical abnormal transmission layer or is arranged in the optical abnormal transmission layer; and an optical reflecting layer is attached to the other surface of the optical abnormal transmission layer. According to the invention, the optical abnormal transmission layer and the optical modulation layer are introduced to realize high-speed modulation of light wave intensity while pseudo-phase conjugate echoes of incident light waves are realized, so that the communication and detection rates are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of optical modulation, in particular to a pseudo-phase conjugate reverse modulator based on optical anomalous transmission. Background technique [0002] When light waves pass through non-uniform and turbulent media, random distortion phases will be introduced, resulting in fluctuations in the spatio-temporal distribution of light intensity at the light wave detection point, which seriously affects the performance indicators of optical communication, light detection, imaging and other systems. The current commonly used method is to use adaptive optics and optical phase conjugation technology. The former includes wavefront phase sensors or phase recovery iterative algorithms and deformable mirrors, but the problems are: high device cost, complex and time-consuming algorithms, and low real-time performance, so the practical application is relatively limited. The latter is generally realized with nonlinear eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/01G02B5/00G02B5/124
Inventor 吕吉航杨国伟毕美华周雪芳卢旸胡淼李齐良
Owner HANGZHOU DIANZI UNIV
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