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

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XING WEIGUANG, ZHAO ZANSHAN, JI GUIHUA, LI GUANGJU, XING MENG, GAN WEIMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DETECTING MASSES OR OBJECTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TESTING
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Beschreibung
Zusammenfassung:	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