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Continuous variable quantum entanglement source generating device

A quantum entanglement and generation device technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as being susceptible to environmental temperature and dust, and achieve the effect of improving stability and facilitating dismantling

Active Publication Date: 2013-06-26
SHANXI UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The invention solves the problem that the existing continuous variable quantum entanglement source is easily affected by ambient temperature and dust, etc., and greatly improves the stability of the entanglement source system

Method used

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  • Continuous variable quantum entanglement source generating device
  • Continuous variable quantum entanglement source generating device
  • Continuous variable quantum entanglement source generating device

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Embodiment approach

[0036] On the basis of the above embodiments, a laser with dual wavelength output of 1550nm and 775nm can be used as a light source, wherein the 1550nm laser is used as signal light, and the 775nm laser is used as pump light to obtain 1550nm entangled light output.

[0037] On the basis of the above embodiments, a laser with dual-wavelength output of 1342nm and 671nm can be used as a light source, wherein the signal light is 1342nm, and the pump light is 671nm to obtain 1342nm entangled light output.

[0038] On the basis of the above embodiments, a laser with dual-wavelength output of 1064nm and 532nm can be used as a light source, wherein the signal light is 1064nm, and the pump light is 532nm to obtain 1064nm entangled light output.

[0039] On the basis of the above embodiments, a laser with dual-wavelength output of 795nm and 398nm can be used as a light source, wherein the signal light is 795nm, and the pump light is 398nm to obtain 795nm entangled light output.

[0040]...

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Abstract

The invention provides a continuous variable quantum entanglement source generating device. The device comprises a laser module, a beam split coupling module, a laser reference cavity module, a phase modulator, an optical parametric amplifier locking module, an anti-phase regulating and locking module, an isolator and beam shaping module, an optical parametric amplifier module, a detection system module and a Bell state direct detection system module, wherein the modules are all fixed on each base plate, and after being subjected to sealing treatment, the modules are sequentially fixed at corresponding positions of an entanglement source total base plate, and a polysulfone cover covers nonlinear crystals in the optical parametric amplifier module for heat preservation. The entanglement source generating device is beneficial to improvement of stability, reliability, operability and exchangeability and is easy for productization, mass production, and the like.

Description

technical field [0001] The invention relates to a device for generating a continuous variable non-classical light field, in particular to a device for generating a continuous variable quantum entangled state light field that is stable, reliable and easy to maintain. Background technique [0002] Quantum information science is an emerging subject combining quantum physics and information science, and a practical subject that uses the basic principles of quantum mechanics to study information technology. One of its purposes is to explain the basic concepts of quantum physics with information theory, and the further exploration of quantum effects will promote the substantial development of information processing and communication. Due to the high speed of light wave transmission and the convenience of loading signals, along with the development of lasers and the further development of optical fiber technology, the research on quantum information based on optical fiber communica...

Claims

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Application Information

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IPC IPC(8): G02F1/39G02F1/35
Inventor 王雅君郑耀辉杨文海彭堃墀
Owner SHANXI UNIV
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