Tunable quantum interference in a 3D integrated circuit

被引：67

作者：

Chaboyer, Zachary ^{[1
]}

Meany, Thomas ^{[1
]}

Helt, L. G. ^{[1
]}

Withford, Michael J. ^{[1
]}

Steel, M. J. ^{[1
]}

机构：

[1] Macquarie Univ, MQ Photon Res Ctr, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Dept Phys & Astron, N Ryde, NSW 2109, Australia

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

关键词：

WAVE-GUIDES;

D O I：

10.1038/srep09601

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Integrated photonics promises solutions to questions of stability, complexity, and size in quantum optics. Advances in tunable and non-planar integrated platforms, such as laser-inscribed photonics, continue to bring the realisation of quantum advantages in computation and metrology ever closer, perhaps most easily seen in multi-path interferometry. Here we demonstrate control of two-photon interference in a chip-scale 3D multi-path interferometer, showing a reduced periodicity and enhanced visibility compared to single photon measurements. Observed non-classical visibilities are widely tunable, and explained well by theoretical predictions based on classical measurements. With these predictions we extract Fisher information approaching a theoretical maximum. Our results open a path to quantum enhanced phase measurements.

引用

页数：5

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