Strongly squeezed states at 532 nm based on frequency up-conversion

被引：18

作者：

Baune, Christoph ^{[1
,2
,3
,4
]}

Gniesmer, Jan ^{[3
,4
,5
]}

Schoenbeck, Axel ^{[1
,2
,3
,4
]}

Vollmer, Christina E. ^{[3
,4
]}

Fiurasek, Jaromir ^{[6
]}

Schnabel, Roman ^{[1
,2
,3
,4
]}

机构：

[1] Univ Hamburg, Inst Laserphys, D-22761 Hamburg, Germany

[2] Univ Hamburg, Zentrum Opt Quantentechnol, D-22761 Hamburg, Germany

[3] Leibniz Univ Hannover, Inst Gravitat Phys, D-30167 Hannover, Germany

[4] Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-30167 Hannover, Germany

[5] Leibniz Univ Hannover, Inst Festkorperphys, D-30167 Hannover, Germany

[6] Palacky Univ, Dept Opt, Olomouc 77146, Czech Republic

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 12期

关键词：

SINGLE PHOTONS; QUANTUM; LIGHT;

D O I：

10.1364/OE.23.016035

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum metrology utilizes nonclassical states to improve the precision of measurement devices. In this context, strongly squeezed vacuum states of light have proven to be a useful resource. They are typically produced by spontaneous parametric down-conversion, but have not been generated at shorter wavelengths so far, as suitable nonlinear materials do not exist. Here, we report on the generation of strongly squeezed vacuum states at 532 nm with 5.5 dB noise suppression by means of frequency up-conversion from the telecommunication wavelength of 1550 nm. The up-converted states are employed in a model Mach-Zehnder interferometer to illustrate their use in quantum metrology. (C) 2015 Optical Society of America

引用

页码：16035 / 16041

页数：7

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