A device and method for simulating a single-photon pulse signal source

A pulse signal source and pulse signal technology, applied in the field of random signal sources, can solve the problems of fragile and expensive single-photon detectors, and achieve the effect of high flexibility and good simulation.

Active Publication Date: 2020-06-16
NANCHANG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the problem that single photon detectors are expensive and easy to damage, provide a device for simulating a single photon pulse signal source, and a method for generating a single photon pulse signal source by using the device, which can be extremely Greatly reduce the cost of developing single-photon detection and increase the speed of research and development

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  • A device and method for simulating a single-photon pulse signal source
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  • A device and method for simulating a single-photon pulse signal source

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0037] see Figure 1-5 .

[0038] The invention relates to a device for simulating a single photon pulse signal source, such as figure 1 , comprising a quartz crystal oscillator 1, more than three low-speed Poisson pulse generators 2 and a multi-input logic OR gate circuit, eight low-speed Poisson signal generators in this embodiment;

[0039] The quartz crystal oscillator 1 is used to generate a 50M reference clock signal, and each pulse generator 2 is connected in parallel;

[0040] The structure of each low-speed Poisson pulse generator 2 is as follows figure 2 As shown, its output terminals are respectively connected to the input terminals of the multi-input logic OR gate circuit;

[0041] The multi-input logical OR gate circuit outputs an analog single photon pulse signal.

[0042] Described low-speed Poisson pulse signal generator 2 comprises frequency...

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Abstract

The invention discloses an apparatus and a method for simulating a single photon pulse signal source. The apparatus comprises a quartz crystal oscillator, at least three low-speed Poisson pulse generators and multi-input logic or gates. The method comprises the following steps: 1), generating a low-speed Poisson pulse signal; 2), generating and simulating the single photon pulse signal and other steps. Comparing with the prior art, the invention has the following beneficial effects: the apparatus of the invention is based on the reconfigurable property of the FPGA, the integration is high, thecomposition is simple, the cost is low, the total number of used logic gates is small, and requirements for a CPU is low; the single-photon pulse signal source is simulated based on a Boolean network, a Poisson distribution model is realized by utilizing characteristics of FPGA parallel processing, and the method of the invention has the advantages of being high in efficiency, convenient, high insignal-to-noise ratio, good in stability and low in cost, and the simulation degree of the single photon pulse signal source is close to ideal single photon pulse signal source under actual conditions.

Description

technical field [0001] The design of the present invention belongs to the technical field of random signal sources, in particular, a device and method for simulating a single-photon pulse signal source are designed. Background technique [0002] A photon is the smallest energy quantum of light. Single-photon detection technology is a new type of photoelectric detection technology that has just started in recent years. Its principle is to use a single-photon detector based on a new type of photoelectric effect to detect and count incident single photons, so as to realize the detection of extremely weak target signals. detection. Single-photon detection detection counting can be useful in emerging applications where the signal strength of many light signals is only a few photon energy levels. This technology has been widely used in biophotonics, medical imaging, non-destructive material inspection, quantum imaging, quantum communication, etc. [0003] Currently commonly use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J11/00
CPCG01J11/00
Inventor 鄢秋荣李子航闫科利肖轶平胡杰
Owner NANCHANG UNIV
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