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Proceedings Paper

Quantum laser pointer and other applications of squeezed light
Author(s): Hans-Albert Bachor; Warwick P. Bowen; Nicolai Grosse; Ben Buchler; Ulrik Andersen; Roman Schnabel; Ping Koy Lam; Nicolas Treps; Claude Fabre; Agnes Maitre
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Paper Abstract

The quantum nature of light imposes a limit to the detection of all properties of a laser beam. We show how we can reduce this limit for a measurement of the position of a light beam on a quadrant detector, simultaneously in two tranverse directions. This quantum laser pointer can measure the beam direction with greater precision than a usual laser. We achieve this by combining three beams, one intense coherent and two vacuum squeeezed beams, with minimum losses into one spatially multimode beam optimized for this application.

Paper Details

Date Published: 3 February 2004
PDF: 9 pages
Proc. SPIE 5161, Quantum Communications and Quantum Imaging, (3 February 2004); doi: 10.1117/12.512328
Show Author Affiliations
Hans-Albert Bachor, Australian National Univ. (Australia)
Warwick P. Bowen, Australian National Univ. (Australia)
Nicolai Grosse, Australian National Univ. (Australia)
Ben Buchler, Australian National Univ. (Australia)
Ulrik Andersen, Australian National Univ. (Australia)
Roman Schnabel, Australian National Univ. (Australia)
Ping Koy Lam, Australian National Univ. (Australia)
Nicolas Treps, Univ. Pierre et Marie Curie (France)
Claude Fabre, Univ. Pierre et Marie Curie (France)
Agnes Maitre, Univ. Pierre et Marie Curie (France)

Published in SPIE Proceedings Vol. 5161:
Quantum Communications and Quantum Imaging
Ronald E. Meyers; Yanhua Shih, Editor(s)

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