Highly efficient measurement of optical quadrature squeezing using a spatial light modulator controlled by machine learning

被引：4

作者：

Amari, Jorge ^{[1
]}

Takai, Junnosuke ^{[1
]}

Hirano, Takuya ^{[1
]}

机构：

[1] Gakushuin Univ, 1-5-1 Mejiro,Toshima Ku, Tokyo 1718588, Japan

来源：

OPTICS CONTINUUM | 2023年 / 2卷 / 04期

基金：

日本学术振兴会;

关键词：

Light modulation - Light modulators - Optical signal processing - Quantum optics;

D O I：

10.1364/OPTCON.484295

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Pulsed squeezed light is a key resource for many quantum information processing tasks. Among the various methods for generating squeezed light, single-pass parametric amplification has various advantages such as broad bandwidth, compactness, and stability. The challenge in achieving high-level pulsed squeezing has been to improve detection efficiency. We used a spatial light modulator controlled by machine learning to improve the spatial mode matching between the local oscillator and squeezed light. We achieved pulsed squeezing of 5.88 dB generated by optical parametric amplification in a waveguide. To the best of our knowledge, this is the highest obtained pulsed squeezing, and we believe this achievement will lead to more compact and efficient quantum information technology.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：933 / 941

页数：9

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