Time domain stealth method and device based on light-induced amplifier

A technology of amplifiers and light generators, applied in optical device exploration, optics, instruments, etc., can solve problems such as inability to integrate, cumbersome implementation process, and low stealth efficiency, and achieve flexible size adjustment, simple implementation process, and high stealth efficiency Effect
CN114355697APending Publication Date: 2022-04-15NANHAI RES STATION OF INST OF ACOUSTICS CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NANHAI RES STATION OF INST OF ACOUSTICS CHINESE ACADEMY OF SCI
Publication Date
2022-04-15

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Abstract

The invention provides a time domain stealth method and device based on a light-induced amplifier, which only needs to detect whether an event occurs in a detection time range, and does not carry out detection in a time range which does not need detection. The device comprises an event signal light generator, a scanning signal light generator, an optical coupler, a light-sensitive amplifier and an adjustable filter, the event signal light generator and the scanning signal light generator generate event signal light and scanning signal light respectively, and the event signal light and the scanning signal light are coupled by the optical coupler and then input into the light-sensitive amplifier. When the event signal light and the scanning signal light are transmitted in the light-sensing amplifier, new-frequency light can be generated, the generated new-frequency light is filtered out through the adjustable filter, and compared with a reported time domain hiding method, the method is easy to achieve, the size of a hiding time window can be flexibly adjusted, the size is small, and integration is easy. And more than one path of time domain stealth signal light can be realized, the stealth efficiency is high, the problem of ripples in a time domain stealth window is avoided, and the stealth effect is better.
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Description

technical field

[0001] The invention relates to the technical field of time-domain stealth, in particular to a time-domain stealth method and device based on an optical induction amplifier. Background technique

[0002] Stealth, a technology that was considered impossible to exist in the real world in the past, is gradually becoming a reality with the development of science and technology. The earliest research on stealth is the stealth of space objects. By changing the refractive index around space objects, the effect of space objects to observers is realized, that is, airspace stealth. The opposite of airspace cloaking is time-domain cloaking. Time-domain cloaking is to hide events that occur at a certain moment in the time domain from observers. In the future, secure communication and cipher encryption have huge potential application value, and are currently the hotspots of people's research.

[0003] At present, some researchers have proposed a scheme to realize time-d...

Claims

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