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Polarization entanglement with graded-index lenses
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10.1063/1.3257376
/content/aip/journal/apl/95/18/10.1063/1.3257376
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/18/10.1063/1.3257376
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Sketch of the GL-SMF system lying within the confocal parameter of the input mode. (b) Picture of two GL-SMF systems put face to face. Each GRIN lens is glued to the input face of the corresponding single-mode optical fiber. (c) Comparison between the collection efficiency of a GL-SMF (black curve) and a objective as a function of transverse displacement. is the full width at half maximum of the Gaussian fitting curve.

Image of FIG. 2.
FIG. 2.

Experimental setup used for polarization Bell-state measurements. The basic elements of the entanglement source are described in Ref. 21.

Image of FIG. 3.
FIG. 3.

Coincidence rate measured as a function of the mirror M position for (black curve) and (red curve).

Image of FIG. 4.
FIG. 4.

Tomographic reconstruction of the four polarization-entangled generated states (real parts). A maximum likelihood technique was used to obtain physical density matrices. The imaginary components are negligible. The corresponding theoretical Bell states are: (a) , (b) , (c) , and (d) .

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/content/aip/journal/apl/95/18/10.1063/1.3257376
2009-11-06
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Polarization entanglement with graded-index lenses
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/18/10.1063/1.3257376
10.1063/1.3257376
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