Low-phase noise and high-power laser for Bragg atom interferometer

被引：8

作者：

Cheng, Yuan ^{[1
]}

Zhang, Ke ^{[1
]}

Chen, Le-Le ^{[1
]}

Xu, Wen-Jie ^{[1
]}

Luo, Qin ^{[1
]}

Zhou, Min-Kang ^{[1
]}

Hu, Zhong-Kun ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Phys Quant Measurements, Wuhan 430074, Hubei, Peoples R China

来源：

AIP ADVANCES | 2017年 / 7卷 / 09期

基金：

中国国家自然科学基金;

关键词：

RUBIDIUM;

D O I：

10.1063/1.5001963

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a laser system with low-phase noise and an output power up to 8.8 W at 780 nm for driving Bragg transitions in a Rb-87 fountain. An optical phase-locked loop (OPLL) is employed to restrain the phase noise that arises from the spatial separation of the two Bragg beams at low frequencies. The residual phase variance is suppressed by two orders around 400 Hz. A Mach-Zehnder Bragg atom interferometer, based on the four-photon recoil scheme, has been realized using this laser system. This interferometer shows a resolution of 5 x 10(-9)g at an integration time of 1200 s for gravity measurements. (C) 2017 Author(s).

引用

页数：6

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