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

作　　者：Xuan-Jian He Jun Jia Gao-Feng Jiao Li-Qing Chen Chun-Hua Yuan Wei-Ping Zhang 何烜坚;贾俊;高锋;陈丽清;袁春华;张卫平(State Key Laboratory of Precision Spectroscopy,Quantum Institute for Light and Atoms,Department of Physics,East China Normal University,Shanghai 200062;School of Physics and Astronomy,and Tsung-Dao Lee Institute,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[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

出　　处：《Chinese Physics B》2020年第7期337-345,共9页中国物理B（英文版）

基　　金：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);the National Key Research and Development Program of China(Grant No.2016YFA0302001).

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 

分 类 号：O431.2[机械工程—光学工程]