Time domain cloaking device based on micro loop resonator

Abstract

The invention discloses a time domain cloaking device based on a micro loop resonator. The time domain cloaking device based on the micro loop resonator comprises a light frequency comb generator, the micro loop resonator, a single mode fiber, a Mach-Zehnder modulator, a dispersion compensation fiber, a random waveform generator connected with the micro loop resonator, and a code stream generator connected with the Mach-Zehnder modulator, wherein the light frequency comb generator, the micro loop resonator, the single mode fiber, the Mach-Zehnder modulator and the dispersion compensation fiber are connected in sequence. The Mach-Zehnder modulator modulates an optical signal with a time gap through a modulation electric signal and outputs a modulated optical signal, the modulated optical signal passes through the dispersion compensation fiber to stitch the time gap, the original optical signal is recovered, and then cloaking of the optical signal in a time domain is realized. The micro loop resonator adopted for the time domain cloaking device is relatively easy to manufacture and obtain compared with a time division prism, so that the structure is simple, cost is low, and the achieved cloaking effect is obvious; by means of adjusting the random waveform generator and changing the length of the single mode fiber and the length of the dispersion compensation fiber, cloaking time periods can be changed, and cloaking in the time domain within a long time period is realized.

Description

technical field [0001] The invention belongs to the field of stealth technology, and more specifically relates to a time-domain stealth device based on a microring resonator. Background technique [0002] For the existence and occurrence of an object or event, it is often detected by measuring the change in the property of the detected light caused by the interaction between the detected light and a certain element in the object or event. In order to achieve stealth in space, it is necessary to precisely manipulate the refractive index around the object so that the detection light will bypass the object without being scattered by the object, thus forming a "hole" in space, and there is no light on the object The object is hidden from the observer, that is, the invisibility effect is achieved. Such space cloaking techniques are usually achieved by using external materials such as negative refraction materials or by finely manipulating the refractive index. [0003] Accordin...

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a time-domain stealth device based on a microring resonator, aiming to solve the problem that the existing stealth technology has poor stealth effect and is difficult to realize

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