Hybrid integrated quantum random number generating device and generating system

A generation device and integrated quantum technology, applied in the field of quantum random numbers, can solve problems such as vacuum state light field interference, achieve the effects of removing electronic noise, optimizing random characteristics, and reducing volume

Pending Publication Date: 2019-12-27
山东国迅量子芯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the end face reflection of the actual device, whether it is a discrete device or an integrated chip, during the optical signal transmission process, some reflected stray light will enter the vacant input end of the beam splitter, which will cause interference to the vacuum state light field

Method used

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  • Hybrid integrated quantum random number generating device and generating system
  • Hybrid integrated quantum random number generating device and generating system
  • Hybrid integrated quantum random number generating device and generating system

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Embodiment 1 provides a hybrid integration form with a higher degree of integration. The local oscillator light source 1, the stray light eliminator 2 and the optical signal processing module are integrated into one chip, that is, the local oscillator light source 1, the stray light eliminator 2, The beam splitter 3, the first adjustable optical attenuator 4, the second adjustable optical attenuator 5, the first photodetector 6, the second photodetector 7 and the transimpedance amplifier 8 are integrated quantum random number generation chips; The structure diagram of the random number generation chip is as follows: figure 2 As shown, specifically, the local oscillator light source 1 can be optically coupled with an input end of the beam splitter 3 through lens coupling, or a grating structure can be etched on the silicon waveguide at an input end of the beam splitter 3, so The local oscillator light source 1 is optically coupled to the grating in the form of a flip-ch...

Embodiment 2

[0055] The difference between embodiment 2 of the present invention and embodiment 1 is:

[0056] The stray light eliminator 2 and the optical signal processing module are integrated into one chip, that is, the stray light eliminator 2, the beam splitter 3, the first adjustable optical attenuator 4, the second adjustable optical attenuator 5, the first photoelectric The detector 6, the second photodetector 7 and the transimpedance amplifier 8 are integrated with a quantum random number generation chip, the local oscillator light source 1 is not integrated, and the local oscillator light source 1 is connected to an input end of the beam splitter 3 through an optical fiber, wherein the random number The integration mode and Example 1 is the same.

[0057] Specifically, the package of the hybrid integrated device is a butterfly package, such as Figure 4 as shown, Figure 4 a is a package front view of the hybrid integrated device disclosed in Embodiment 2 of the present inven...

Embodiment 3

[0059] Compared with Embodiment 1, Embodiment 3 integrates the local oscillator light source 1, the stray light eliminator 2 and the optical signal processing module into one chip, that is, the local oscillator light source 1, the stray light eliminator 2, and the beam splitter 3. The first adjustable optical attenuator 4, the second adjustable optical attenuator 5, the first photodetector 6, the second photodetector 7 and the transimpedance amplifier 8 integrate a quantum random number generation chip, a quantum random number generation chip Structure diagram such as figure 2 As shown, the package is the same as the embodiment 1 and is a butterfly package form, so its package diagram is the same as that of the embodiment 1, such as image 3 shown; but the integration method of embodiment 3 is different from that of embodiment 1. Specifically, the local oscillator light source 1, the stray light eliminator 2, the beam splitter 3, the first adjustable optical attenuator 4, th...

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PUM

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Abstract

The invention discloses a hybrid integrated quantum random number generating device and generating system. The device comprises a local oscillation light source and an optical signal processing module. The local oscillation light source is connected to one input end of the optical signal processing module, and the hybrid integrated quantum random number generating device further comprises a straylight eliminator connected to the vacuum state optical signal input end of the optical signal processing module. The random source has the advantages that the stray light eliminating device is additionally arranged at the vacuum state optical signal input end, it is guaranteed that a vacuum state optical field is not interfered, quantum randomness of the random source is guaranteed, the size is reduced, power consumption is reduced, and the integration degree is high.

Description

technical field [0001] The invention relates to the field of quantum random numbers, in particular to a hybrid integrated quantum random number generating device and generating system. Background technique [0002] As a widely used basic resource, random numbers are of great value in fields such as cryptography, gaming, finance, artificial intelligence, and information security. Generally, random numbers are divided into two categories: pseudo-random numbers and physical random numbers. Pseudo-random numbers are generated by the computer using a fixed algorithm to perform repeated iterative operations on the initial seed, so they are periodic. As long as the algorithm and seeds are obtained, the pseudo-random numbers can be deciphered. Physical random numbers are generated based on physical random phenomena, including classical random phenomena and quantum random phenomena. Typical classical random phenomena, such as atmospheric noise, electronic thermal noise, oscillator ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58
CPCG06F7/588
Inventor 龚攀刘建宏冯斯波
Owner 山东国迅量子芯科技有限公司
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