Quantum measurements of spatial conjugate variables: Displacement and tilt of a Gaussian beam

Vincent Delaubert; Nicolas Treps; Charles C. Harb; Ping Koy Lam; Hans A. Bachor

doi:10.1364/OL.31.001537

Quantum measurements of spatial conjugate variables: Displacement and tilt of a Gaussian beam

Vincent Delaubert^*, Nicolas Treps, Charles C. Harb, Ping Koy Lam, Hans A. Bachor

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

We consider the problem of measurement of optical transverse profile parameters and their conjugate variable. Using multimode analysis, we introduce the concept of detection noise modes. For Gaussian beams, displacement and tilt are a pair of transverse-profile conjugate variables. We experimentally demonstrate the optimal encoding and detection of these variables with a spatial homodyning scheme. Using higher-order spatial mode squeezing, we show the sub-shot-noise measurements for the displacement and tilt of a Gaussian beam.

Original language	English
Pages (from-to)	1537-1539
Number of pages	3
Journal	Optics Letters
Volume	31
Issue number	10
DOIs	https://doi.org/10.1364/OL.31.001537
Publication status	Published - 15 May 2006

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abstract = "We consider the problem of measurement of optical transverse profile parameters and their conjugate variable. Using multimode analysis, we introduce the concept of detection noise modes. For Gaussian beams, displacement and tilt are a pair of transverse-profile conjugate variables. We experimentally demonstrate the optimal encoding and detection of these variables with a spatial homodyning scheme. Using higher-order spatial mode squeezing, we show the sub-shot-noise measurements for the displacement and tilt of a Gaussian beam.",

author = "Vincent Delaubert and Nicolas Treps and Harb, {Charles C.} and Lam, {Ping Koy} and Bachor, {Hans A.}",

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AU - Delaubert, Vincent

AU - Treps, Nicolas

AU - Harb, Charles C.

AU - Lam, Ping Koy

AU - Bachor, Hans A.

PY - 2006/5/15

Y1 - 2006/5/15

N2 - We consider the problem of measurement of optical transverse profile parameters and their conjugate variable. Using multimode analysis, we introduce the concept of detection noise modes. For Gaussian beams, displacement and tilt are a pair of transverse-profile conjugate variables. We experimentally demonstrate the optimal encoding and detection of these variables with a spatial homodyning scheme. Using higher-order spatial mode squeezing, we show the sub-shot-noise measurements for the displacement and tilt of a Gaussian beam.

AB - We consider the problem of measurement of optical transverse profile parameters and their conjugate variable. Using multimode analysis, we introduce the concept of detection noise modes. For Gaussian beams, displacement and tilt are a pair of transverse-profile conjugate variables. We experimentally demonstrate the optimal encoding and detection of these variables with a spatial homodyning scheme. Using higher-order spatial mode squeezing, we show the sub-shot-noise measurements for the displacement and tilt of a Gaussian beam.

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DO - 10.1364/OL.31.001537

M3 - Article

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VL - 31

SP - 1537

EP - 1539

JO - Optics Letters

JF - Optics Letters

IS - 10

ER -

Quantum measurements of spatial conjugate variables: Displacement and tilt of a Gaussian beam

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