Spatial modulation characteristics of single-photon frequency up-conversion systems pumped by Gaussian laser beam
Jian-hui Ma, Xiong-jie Li, Wen-jie Wu, Kun Huang, Hai-feng Pan, E. Wu
Optoelectronics Letters ›› , Vol. 11 ›› Issue (6) : 477-480.
Spatial modulation characteristics of single-photon frequency up-conversion systems pumped by Gaussian laser beam
In a Gaussian laser beam pumped single-photon frequency up-conversion system, the spatial distribution of the conversion efficiency is calculated, which strongly depends on the intensity distribution of the pump beam and leads to a spatial modulation of the output single photons. As a result, by simply varying the Gaussian pump beam intensity and the beam size, the converted photons could be modulated spatially and exhibit a programmable distribution. This will be meaningful for the researches on quantum communication and quantum manipulation based on frequency up-conversion system.
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This work has been supported by the National Natural Science Foundation of China (Nos.61127014, 61378033 and 11434005), the National Key Scientific Instrument Project (No.2012YQ150092), the Program of Introducing Talents of Discipline to Universities (No.B12024), the Shanghai Rising-Star Program (No.13QA1401300), and the Shanghai International Cooperation Project (No.13520720700).
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