Realization of a nonlinear interferometer with parametric amplifiers

Jietai Jing; Cunjin Liu; Zhifan Zhou; Z. Y. Ou; Weiping Zhang

doi:10.1063/1.3606549

Realization of a nonlinear interferometer with parametric amplifiers

Jietai Jing, Cunjin Liu, Zhifan Zhou, Z. Y. Ou, Weiping Zhang

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169 Scopus citations

Abstract

We construct an interferometer with parametric amplifiers as beam splitters. Because of the gain in the parametric amplifiers, the maximum output intensity of the interferometer can be much bigger than the input intensity as well as the intensity inside the interferometer (the phase sensing intensity). We find that the fringe intensity depends quadratically on the intensity of the phase sensing field at high gain. This type of nonlinear interferometer has better sensitivity than the traditional linear interferometer made of beam splitters with the same phase sensing intensity.

Original language	English
Article number	011110
Journal	Applied Physics Letters
Volume	99
Issue number	1
DOIs	https://doi.org/10.1063/1.3606549
State	Published - 4 Jul 2011
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3606549

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AU - Zhang, Weiping

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AB - We construct an interferometer with parametric amplifiers as beam splitters. Because of the gain in the parametric amplifiers, the maximum output intensity of the interferometer can be much bigger than the input intensity as well as the intensity inside the interferometer (the phase sensing intensity). We find that the fringe intensity depends quadratically on the intensity of the phase sensing field at high gain. This type of nonlinear interferometer has better sensitivity than the traditional linear interferometer made of beam splitters with the same phase sensing intensity.

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Realization of a nonlinear interferometer with parametric amplifiers

Abstract

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