Sub-shot noise measurements with an acousto-optic modulator

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https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8875/88750O/Sub-shot-noise-measurements-with-an-acousto-optic-modulator/10.1117/12.2024107.full

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https://doi.org/10.1117/12.2024107
 http://hdl.handle.net/11603/39969

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UMBC Faculty Collection
UMBC Physics Department

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Date

2013-09-26

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conference papers and proceedings
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Citation of Original Publication

Simon, Jason P., and Yanhua Shih. “Sub-Shot Noise Measurements with an Acousto-Optic Modulator.” Quantum Communications and Quantum Imaging XI 8875 (September 2013): 111–16. https://doi.org/10.1117/12.2024107.

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©2013 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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Abstract

The shot noise limit is a fundamental lower limit on the sensitivity of any measurement and is de ned by nature. We propose an experiment in which we measure the di erence current from each heterodyne detector and nd that the result is a sinusoidal function of the path length di erence between the the two heterodyne systems. For certain values of the path length, we expect to overcome the shot noise limit set by the local oscillator. Here we review our experiment and report on the current experimental progress.