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Vacuum squeezed type light field generator

A vacuum compression and generation device technology, which is applied in the direction of lasers, laser components, active medium materials, etc., can solve the problems of high technical requirements for compressed light fields, complex and large generation devices, etc., and achieve compact structure, high stability and reliability. good sex effect

Inactive Publication Date: 2010-08-04
SHANXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no commercial device for generating compressed light field in the market, the main reason is that the technical requirements for generating compressed light field are very high, and the generating device is complex and huge

Method used

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  • Vacuum squeezed type light field generator
  • Vacuum squeezed type light field generator
  • Vacuum squeezed type light field generator

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Embodiment Construction

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Such as figure 1 A device for generating a vacuum squeezed light field is shown, including a single-frequency dual-wavelength laser 1, a mode cleaner 2 fixed on an optical base, an optical parametric amplifier 3, a cavity length locking system 4, and a balanced zero-beat detector System 5. Wherein: the single-frequency dual-wavelength laser 1 adopts LD-pumped all-solid-state continuous single-frequency intracavity frequency-doubling ring Nd:YVO4-KTP 532nm green laser, and its 808nm pumping optical power is 2.5W, and the 532nm green light output The power is 220mW, and the output power of 1064nm infrared light is 50mW. The output light of the laser 1 is divided into 532nm light and 1064nm light by a beam splitter, and the 1064nm light is input to the mode cleaner 2, and the light output by the mode cleaner 2 is combined with the 532nm light and then input to the ...

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Abstract

The invention provides a vacuum squeezed type light field generator, which comprises a single-frequency dual-wavelength laser (1), a mold cleaner (2), an optical parametric amplifier (3), a cavity length locking system (4) and a balance homodyne detection system (5); wherein the mold cleaner (2), the optical parametric amplifier (3), the cavity length locking system (4) and the balance homodyne detection system (5) are arranged on an optical base; and the mold cleaner (2) consists of a first lens (6), a half-wave plate (7), a polarization beam splitter (8), a second lens (9), an optical input head (10), a single-mode polarization maintaining fiber (11) and an optical output head (12) arranged on an optical axis in sequence. The invention has the advantages of compact structure, convenient regulation, high stability and high reliability, and has important application value.

Description

technical field [0001] The invention relates to a device for generating a quantum light field, in particular to a device for generating a vacuum compressed state light field. Background technique [0002] Squeezed light field is an important non-classical light field, which has important applications in many fields. Especially in quantum communication, two single-mode squeezed light fields can form a source of quantum entanglement through the interference coupling output of a beam splitter. As the core of quantum information, quantum entanglement sources can accomplish many tasks impossible for classical light, such as quantum state transfer, quantum dense coding and quantum secure communication. [0003] At present, the most effective way to generate squeezed light fields and quantum entangled states is through optical parametric processes. Most of the optical parametric processes use traditional phase-matched crystals, such as potassium titanyl phosphate (KTiOPO4 for shor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/10
Inventor 邸克于旭东张靖
Owner SHANXI UNIV
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