Photon statistics of pulse pumped four wave mixing in fiber with weak signal injection

LIU Nan-Nan; LIU Yu-Hong; LI Jia-Min; LI Xiao-Ying

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Photon statistics of pulse pumped four wave mixing in fiber with weak signal injection

LIU Nan-Nan #,LIU Yu-Hong,LI Jia-Min,LI Xiao-Ying *

College of Precision Instrument and Opto-electronics Engineering, Tianjin University

*Correspondence author

#Submitted by

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Funding: Doctoral Foundation of Ministry of Education （No.20120032110055）, National NSF of China（No.11527808）, State Key Development Program for Basic Research of China（No.2014CB340103）, PCSIRT and 111 Project （No.B07014）, Natural Science Foundation of Tianjin （No.14JCQNJC02300）

Opened online:13 May 2016

Accepted by: none

Citation: LIU Nan-Nan,LIU Yu-Hong,LI Jia-Min.Photon statistics of pulse pumped four wave mixing in fiber with weak signal injection[OL]. [13 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4687417

In this paper, the photon statistics of pulse pumped four wave mixing in fibers with weak coherent signal injection are studied by measuring the intensity correlation functions of individual signal and idler fields. The experimental results show the intensity correlation function of individual signal (idler) field decreases with the intensity of signal injection. After applying narrow band filter in signal (idler) band, the value of 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 multimode 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.

Keywords:Optics, Photon statistics, Four wave mixing, Intensity correlation function, Fiber optics

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