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Author: alan migdall

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31. Experimental Test of Non-Local Realism Using a Fiber-Based Source of Polarization-Entangled Photon Pairs
Published: 3/25/2008
Authors: Jingyun Fan, M D. Eisaman, Elizabeth Anne Goldschmidt, J Chen, Alan L Migdall
Abstract: We describe an experimental test of local realistic and non-local realistic theories using polarization-entangled two-photon singlet states created using a fiber-based polarization Sagnac interferometer. We show a violation of Bell s inequality in th ...

32. Quantum state tomography of a fiber-based source of polarization-entangled photon pairs
Published: 12/20/2007
Authors: Jingyun Fan, M D. Eisaman, Alan L Migdall
Abstract: We report an experimental demonstration of a bright highfidelity single-mode-optical-fiber source of polarization-entangled photon pairs. The source takes advantage of single-mode fiber optics, highly nonlinear microstructure fiber, judicious phas ...

33. An Optical Fiber-Based Source of Polarization-Entangled Photon Pairs
Published: 9/10/2007
Authors: Jingyun Fan, M D. Eisaman, Alan L Migdall
Abstract: We describe an achromatic, phase-stable, broadband source of polarization-entangled photon pairs with high spectral brightness that uses four-wave mixing in a fiber Sagnac interferometer. We achieved a polarization-entangled two-photon coincidence r ...

34. High Accuracy Dual Lens Transmittance Measurements
Published: 8/1/2007
Authors: J Cheung, James Gardner, Alan L Migdall, Sergey V Polyakov, Michael Ware
Abstract: We show how to determine the transmittance of short focal length lenses (f ~ 19 mm, in this case) with an uncertainty of 1 part in 103 or better by measuring transmittances of lens pairs of a set of three or more lenses with the same nominal focal le ...

35. Implementing a Multiplexed System of Detectors for Higher Photon Counting Rates
Published: 7/1/2007
Authors: V Schettini, Sergey V Polyakov, Ivo Pietro Degiovanni, Giorgio Brida, Stefania Castelletto, Alan L Migdall
Abstract: Photon counting applications are often limited by detector deadtime to operate at count rates of a few MHz, at best, and often at significantly lower levels. This limitation is becoming more critical as with the advance of photon counting application ...

36. A Broadband High Spectral Brightness Fiber-Based Two-Photon Source
Published: 3/19/2007
Authors: Jingyun Fan, Alan L Migdall
Abstract: After characterizing the Raman scattering in a fused silica polarization-maintaining microstructure optical fiber, we built a fiber-based two-photon light source of high spectral brightness, broad spectral range, and very low noise background at room ...

37. High Accuracy Verification of a Correlated-Photon-Based Method for Determining Photon-Counting Detection Efficiency
Published: 2/19/2007
Authors: Sergey V Polyakov, Alan L Migdall
Abstract: We have implemented and characterized an independent primary standard method for the calibration of detection efficiency of photon counting detectors. The method is based on a light source producing correlated photon pairs. We have determined, and mo ...

38. Calibrating Photon-Counting Detectors to High Accuracy: Background and Deadtime Issues
Published: 1/20/2007
Authors: Michael Ware, Alan L Migdall, Joshua C Bienfang, Sergey V Polyakov
Abstract: When photon-counting detectors are calibrated in the presence of a background signal, deadtime effects can be significant and must be carefully accounted for to achieve high accuracy. We present a method for separating the correlated signal from the ...

39. Introduction to Journal of Modern Optics Special Issue on Single Photon: Sources, Detectors, Applications and Measurement Methods
Published: 1/20/2007
Authors: J Cheung, Alan L Migdall, Stefania Castelletto
Abstract: In October 2005, a 2-day follow up workshop, Single photon: sources, detectors, applications and measurement methods, was held at the NPL (National Physical Laboratory, UK). The focus for this workshop was to report on the key developments since the ...

40. Reduced Deadtime and Higher Rate Photon-Counting Detection Using a Multiplexed Detector Array
Published: 1/20/2007
Authors: Stefania Castelletto, Ivo Pietro Degiovanni, V Schettini, Alan L Migdall
Abstract: We present a scheme for a photon-counting detection system that can be operated at incident photon rates higher than otherwise possible by suppressing the effects of detector deadtime. The method uses an array of N detectors and a 1-by-N optical swit ...

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