Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements.

Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements. Research Abstract Details 

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Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements. Abstract Text:

H Hansen,T Aichele,C Hettich,P Lodahl,A I Lvovsky,J Mlynek,S Schiller,

A pulsed, balanced homodyne detector has been developed for precise measurement of the electric field quadratures of pulsed optical quantum states. A high level of common mode suppression (>85 dB) and low electronic noise (730 electrons per pulse) provide a signal-to-noise ratio of 14 dB for measurement of the quantum noise of individual pulses. Measurements at repetition rates as high as 1 MHz are possible. As a test, quantum tomography of the coherent state was performed, and the Wigner function and the density matrix were reconstructed with 99.5% fidelity. The detection system can be used for ultrarsensitive balanced detection in cw mode, e.g., for weak absorption measurements.

Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements. Publishing Authors By Initials

H Hansen,T Aichele,C Hettich,P Lodahl,AI Lvovsky,J Mlynek,S Schiller,

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Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Optics letters

VOLUME: 26

Page Numbers: 1714-6

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ISSN: 0146-9592

DAY: 1

MONTH: Nov

YEAR: 2001

Ultrasensitive pulsed, balanced homodyne detector: application to time-domain quantum measurements. Information

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LANGUAGE: eng

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Country: United States

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MEDLINETA: Opt Lett

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