Journal of the Optical Society of Korea

  • 제1권1호
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  • Pages.1-4
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  • 1997
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Enhancement in quantum noise correlation between the two outputs of a nondegenerate optical amplifier with a non-vacuum state idler input

  • Kim, Chong-Hoon (Deparment of Ingornation and Communication, Soongsil University)
  • 투고 : 1997.01.13
  • 발행 : 1997.03.01
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초록

The theoretical limit of the noise correlation between the signal and idler outputs of a nondegenerate optical parametric amplifier (NOPA) with a coherent state signal and vacuum state idler input can be enhanced if a non-vacuum coherent state idler input is employed. By choosing a balanced signal and idler input, the noise correlation is $1/{({\root}g + {\root}{g-1})}^2$, where g is the intensity gain of the NOPA, and that is superior to the prediced outputs with single signal input by approximately 3dB. The result is applicable to all the schemes that use the NOPA to produce a sub-shot noise light generation such as feed-back or feed-forward control.

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참고문헌

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