| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Photon statistics of pulse-pumped four-wave mixing in fiber with weak signal injection |
| Nan-Nan Liu(刘楠楠), Yu-Hong Liu(刘宇宏), Jia-Min Li(李嘉敏), Xiao-Ying Li(李小英) |
| College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Key Laboratory of Optoelectronics Information Technology of Ministry of Education, Tianjin 300072, China |
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Abstract We study the photon statistics of pulse-pumped four-wave mixing in fibers with weak coherent signal injection by measuring the intensity correlation functions of individual signal and idler fields. The experimental results show that the intensity correlation function of individual signal (idler) field gs(i)(2) decreases with the intensity of signal injection. After applying narrow band filter in signal (idler) band, the value of gs(i)(2) decreases from 1.9±0.02 (1.9±0.02) to 1.03±0.02 (1.05±0.02) when the intensity of signal injection varies from 0 to 120 photons/pulse. The results indicate that the photon statistics changes from Bose-Einstein distribution to Poisson distribution. We calculate the intensity correlation functions by using the multi-mode theory of four-wave mixing in fibers. The theoretical curves well fit the experimental results. Our investigation will be useful for mitigating the crosstalk between quantum and classical channels in a dense wavelength division multiplexing network.
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Received: 16 January 2016
Accepted manuscript online:
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PACS:
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42.50.-p
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(Quantum optics)
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42.50.Dv
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(Quantum state engineering and measurements)
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42.65.-k
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(Nonlinear optics)
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03.67.Hk
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(Quantum communication)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11527808), the State Key Development Program for Basic Research of China (Grant No. 2014CB340103), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20120032110055), the Natural Science Foundation of Tianjin, China (Grant No. 14JCQNJC02300), the Program for Changjiang Scholars and Innovative Research Team in University, China, and the Program of Introducing Talents of Discipline to Universities, China (Grant No. B07014). |
Corresponding Authors:
Xiao-Ying Li
E-mail: xiaoyingli@tju.edu.cn
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Cite this article:
Nan-Nan Liu(刘楠楠), Yu-Hong Liu(刘宇宏), Jia-Min Li(李嘉敏), Xiao-Ying Li(李小英) Photon statistics of pulse-pumped four-wave mixing in fiber with weak signal injection 2016 Chin. Phys. B 25 074203
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