Journal
CHINESE PHYSICS B
Volume 22, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/22/9/094206
Keywords
squeezed vacuum; telecommunication wavelength of 1.3 mu m; optical parametric oscillator
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Funding
- National Basic Research Program of China [2010CB923101]
- National Natural Science Foundation of China [61008001, 61227015]
- Natural Science Foundation of Shanxi Province, China [2011021003-2]
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We present a continuous-wave squeezed vacuum generation system at a telecommunication wavelength of 1.3 mu m. By employing a home-made single-frequency Nd:YVO4 laser with dual wavelength outputs as the pump source, via an optical parameter oscillator based on periodically poled KTP, a squeezed vacuum of 6.1 dB +/- 0.1 dB below the shot noise limit at 1342 nm is experimentally measured. This system could be utilized for demonstrating practical quantum information networks.
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