3 February 2004 Quantum laser pointer and other applications of squeezed light
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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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hans-Albert Bachor, Hans-Albert Bachor, Warwick P. Bowen, Warwick P. Bowen, Nicolai Grosse, Nicolai Grosse, Ben Buchler, Ben Buchler, Ulrik Andersen, Ulrik Andersen, Roman Schnabel, Roman Schnabel, Ping Koy Lam, Ping Koy Lam, Nicolas Treps, Nicolas Treps, Claude Fabre, Claude Fabre, Agnes Maitre, Agnes Maitre, "Quantum laser pointer and other applications of squeezed light", Proc. SPIE 5161, Quantum Communications and Quantum Imaging, (3 February 2004); doi: 10.1117/12.512328; https://doi.org/10.1117/12.512328


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