Fast time-domain balanced homodyne detection of light
Applied Optics, Vol. 48, Issue 15, pp. 2884-2889 (2009)
http://dx.doi.org/10.1364/AO.48.002884
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Abstract
A balanced homodyne detection scheme with nanosecond time resolution and sub-shot-noise sensitivity has been developed and successfully tested yielding an efficient detection scheme for high-speed quantum-optical measurements and communication protocols, for example, quantum cryptography. The parameters of the detector and its precise balancing allow complete characterization of quantum states created by femtosecond light pulses that include the measurement of photon number, optical phase, and statistical properties with a high signal-to-noise ratio for the whole bandwidth from DC to several tens of megahertz. The electronic part of the detector is based on a commercially available amplifier that provides ease of construction and use while yielding good performance.
© 2009 Optical Society of America
OCIS Codes
(040.5160) Detectors : Photodetectors
(040.5570) Detectors : Quantum detectors
(270.5570) Quantum optics : Quantum detectors
(060.5565) Fiber optics and optical communications : Quantum communications
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing
ToC Category:
Detectors
History
Original Manuscript: October 30, 2008
Revised Manuscript: March 10, 2009
Manuscript Accepted: April 21, 2009
Published: May 15, 2009
Citation
Ondřej Haderka, Václav Michálek, Vladimir Urbášek, and Miroslav Ježek, "Fast time-domain balanced homodyne detection of light," Appl. Opt. 48, 2884-2889 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-15-2884
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