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Proceedings Article

Correlated photon pair generation in silicon wire waveguides

[+] Author Affiliations
Jierong Cheng, Qiang Zhou, Wei Zhang, Yidong Huang, Jiangde Peng

Tsinghua Univ. (China)

Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798606 (January 19, 2011); doi:10.1117/12.888587
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From Conference Volume 7986

  • Passive Components and Fiber-Based Devices VII
  • Perry P. Shum
  • Shanghai, China | December 08, 2010

abstract

In this paper, correlated photon pairs at 1.55μm are generated in a silicon wire waveguidewith a length of 1.6 mm. The ratio between coincidence count rate and accidental coincidence count rate under room temperature is 19, showing the property of low Raman noise and strong quantum correlation. Moreover, the experiment shows that photon pair generation isstrongly dependent on pump polarization direction. Using quantum perturbation theory, we analyze the contribution of scalar and vectorspontaneous four-wave mixing processes to the generated photon pairs. Due tohigh nonlinear coefficient and high coupling efficiency, the generation rate in quasi-TE mode is much larger than that in quasi-TM mode.The combination of calculated photon pair generation rates through scalar and vector spontaneous four-wave mixing processes agrees well with the experimental result.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Jierong Cheng ; Qiang Zhou ; Wei Zhang ; Yidong Huang and Jiangde Peng
"Correlated photon pair generation in silicon wire waveguides", Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798606 (January 19, 2011); doi:10.1117/12.888587; http://dx.doi.org/10.1117/12.888587


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