Pulse time synchronization system for quantum enhanced laser detection

A technology of laser detection and pulse time, which is applied in the field of quantum enhanced laser detection, can solve the problems of optical path difference, optical path difference cannot be compensated, and cannot be synchronized, and achieve the effects of small size, flexible modulation, and low cost
CN106526575AActive Publication Date: 2017-03-22BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Publication Date
2017-03-22

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Abstract

The invention provides a pulse time synchronization system for quantum enhanced laser detection. The system comprises a laser main light source (1), a delay unit (2), a time synchronization monitoring detector (3), a digital phase-locked unit (4), and a synchronous control unit (5). According to the system, the delay unit (2) is guided to carry out high precision optical pulse delay through the feedback signal of the digital phase-locked unit (4), a problem that the satisfaction of the time synchronization and maintenance of a pulse coherent characteristic at the same time in quantum enhanced laser detection by pump light, signal light and local-oscillator light are needed can be solved, the delay unit (2) adopts fiber or Fabry-Perot interference cavity to carry out fixed time delay modulation, the size is small, and the degree of integration is high.
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Description

technical field

[0001] The invention belongs to the field of quantum enhanced laser detection and the field of time synchronization of pulse sequences, in particular to a method for synchronizing homologous laser pulses. Background technique

[0002] With the increasing demand for the imaging capabilities of existing classical remote sensing payloads, as well as the ability to detect, identify, and distinguish targets, quantum imaging technology has attracted widespread attention because of its potential application in breaking the theoretical limits of classical optical remote sensing. Classical imaging technology considers that the propagation of light and the interaction between light and matter are linear, which can be described by classical electromagnetic field theory. Compared with classical imaging technology, quantum imaging uses some nonlinear interactions that cannot be described by classical electromagnetic field theory to modulate the light field to form an imag...

Claims

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