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Time domain Talbot effect based time domain stealth system

A time domain, effect technology, applied in the field of optical communication, to achieve good time domain stealth effect

Active Publication Date: 2018-10-26
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a time-domain stealth system based on the time-domain Talbot effect, to solve the problem of utilizing the Talbot effect to realize time-domain stealth

Method used

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  • Time domain Talbot effect based time domain stealth system
  • Time domain Talbot effect based time domain stealth system
  • Time domain Talbot effect based time domain stealth system

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0037] The Talbot effect in the time domain means that after the pulse sequences with the same phase or different integer multiples of 2π pass through the propagation medium with a specific dispersion value, they will repeat at a specific position and the amplitude will be reproduced according to different multiples. pulse train. This is because the spectrum of the pulse sequence is comb-shaped, and the interval between each spectral line is the repetition frequency of the pulse, and the spectral components contained in each pulse are the same, so after the pulse passes through the first-order scattering medium, The spectral lines of each pulse are delayed differently by different differences from the center wavelength. ...

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Abstract

The invention belongs to the technical field of optical communication and discloses a time domain Talbot effect based time domain stealth system. The time domain stealth system comprises a signal generating device and a stealth device, the signal generating device is used for generating optical pulses and modulating signals, and the stealth device is used for realizing time domain stealth throughintroduction of a chromatic dispersion value according with an equation as shown in the specification. By introduction of a time domain average effect of the time domain Talbot effect to a time domainstealth conception, energy of pulse sequences with modulated intensity information is redistributed to realize average in a certain time range, and thus, obtained output light looks the same as output light of a light source, and time domain stealth is realized.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a time-domain stealth system based on the time-domain Talbot effect. Background technique [0002] Stealth, a technology that was considered impossible to exist in the real world in the past, has successfully achieved stealth in airspace or time domain through the efforts of scholars. The stealth in the airspace is mainly to make a fuss about the material, that is, to achieve stealth by changing the refractive index of the material. With the popularity of invisibility cloaks in the airspace, the concept of time-domain invisibility has also been proposed. [0003] Time-domain cloaking refers to light that carries signals through intensity modulation or other modulation methods. After passing through the time-domain cloaking system, it will be restored to be the same as unmodulated light, just like the modulated signal has been cloaked. Time-domain stealth was first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F2/00H01S3/067H01S3/11H01S3/10
CPCG02F2/00H01S3/06725H01S3/06754H01S3/10H01S3/10061H01S3/1109
Inventor 李明林志星孙术乾祝宁华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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