中国物理B ›› 2020, Vol. 29 ›› Issue (7): 74207-074207.doi: 10.1088/1674-1056/ab8abd

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A two-mode squeezed light based on a double-pump phase-matching geometry

Xuan-Jian He(何烜坚), Jun Jia(贾俊), Gao-Feng Jiao(焦高锋), Li-Qing Chen(陈丽清), Chun-Hua Yuan(袁春华), Wei-Ping Zhang(张卫平)   

  1. 1 State Key Laboratory of Precision Spectroscopy, Quantum Institute for Light and Atoms, Department of Physics, East China Normal University, Shanghai 200062, China;
    2 School of Physics and Astronomy, and Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China;
    3 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2020-01-19 修回日期:2020-03-30 出版日期:2020-07-05 发布日期:2020-07-05
  • 通讯作者: Li-Qing Chen, Chun-Hua Yuan E-mail:lqchen@phy.ecnu.edu.cn;chyuan@phy.ecnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11974111, 11474095, 11874152, 11604069, 91536114, 11654005, and 11234003), the Fundamental Research Funds for the Central Universities, China, the Science Foundation of Shanghai, China (Grant No. 17ZR1442800), and the National Key Research and Development Program of China (Grant No. 2016YFA0302001).

A two-mode squeezed light based on a double-pump phase-matching geometry

Xuan-Jian He(何烜坚)1, Jun Jia(贾俊)1, Gao-Feng Jiao(焦高锋)1, Li-Qing Chen(陈丽清)1, Chun-Hua Yuan(袁春华)1,3, Wei-Ping Zhang(张卫平)2,3   

  1. 1 State Key Laboratory of Precision Spectroscopy, Quantum Institute for Light and Atoms, Department of Physics, East China Normal University, Shanghai 200062, China;
    2 School of Physics and Astronomy, and Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China;
    3 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • Received:2020-01-19 Revised:2020-03-30 Online:2020-07-05 Published:2020-07-05
  • Contact: Li-Qing Chen, Chun-Hua Yuan E-mail:lqchen@phy.ecnu.edu.cn;chyuan@phy.ecnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11974111, 11474095, 11874152, 11604069, 91536114, 11654005, and 11234003), the Fundamental Research Funds for the Central Universities, China, the Science Foundation of Shanghai, China (Grant No. 17ZR1442800), and the National Key Research and Development Program of China (Grant No. 2016YFA0302001).

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摘要： We theoretically investigate the frequency-nondegenerate and frequency degenerate squeezed lights with a four-wave mixing process (4WM) driven by two pump fields crossing at a small angle. Different from a 4WM process driven by a single pump field, the refractive index of the corresponding probe field, np, can be converted to a value that is greater than 1 or less than 1 by an angle adjustment. In the new region with np < 1, the bandwidth of the gain is relatively large due to the slow change in the refractive index with the two-photon detuning. In this region with an exchange of the roles of the pump and probe beams, the frequency degenerate and spatial nondegenerate twin beams can be generated, which has potential application in quantum information and quantum metrology.

关键词: four-wave mixing, phase matching, frequency degenerate and spatial nondegenerate, metrology

Abstract: We theoretically investigate the frequency-nondegenerate and frequency degenerate squeezed lights with a four-wave mixing process (4WM) driven by two pump fields crossing at a small angle. Different from a 4WM process driven by a single pump field, the refractive index of the corresponding probe field, np, can be converted to a value that is greater than 1 or less than 1 by an angle adjustment. In the new region with np < 1, the bandwidth of the gain is relatively large due to the slow change in the refractive index with the two-photon detuning. In this region with an exchange of the roles of the pump and probe beams, the frequency degenerate and spatial nondegenerate twin beams can be generated, which has potential application in quantum information and quantum metrology.

Key words: four-wave mixing, phase matching, frequency degenerate and spatial nondegenerate, metrology

中图分类号:  (Nonlinear optics)

  • 42.65.-k
42.50.Lc (Quantum fluctuations, quantum noise, and quantum jumps) 42.65.Lm (Parametric down conversion and production of entangled photons) 06.20.-f (Metrology)