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

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 87Rb 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....

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Main Authors:	Yuan Cheng, Ke Zhang, Le-Le Chen, Wen-Jie Xu, Qin Luo, Min-Kang Zhou, Zhong-Kun Hu
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2017-09-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.5001963

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spelling	doaj-82e61fcc1cc74be29f8110e14f24f2b12020-11-24T21:58:20ZengAIP Publishing LLCAIP Advances2158-32262017-09-0179095211095211-610.1063/1.5001963052709ADVLow-phase noise and high-power laser for Bragg atom interferometerYuan Cheng0Ke Zhang1Le-Le Chen2Wen-Jie Xu3Qin Luo4Min-Kang Zhou5Zhong-Kun Hu6MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaMOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of ChinaWe 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 87Rb 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 5×10−9g at an integration time of 1200 s for gravity measurements.http://dx.doi.org/10.1063/1.5001963
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Yuan Cheng Ke Zhang Le-Le Chen Wen-Jie Xu Qin Luo Min-Kang Zhou Zhong-Kun Hu
spellingShingle	Yuan Cheng Ke Zhang Le-Le Chen Wen-Jie Xu Qin Luo Min-Kang Zhou Zhong-Kun Hu Low-phase noise and high-power laser for Bragg atom interferometer AIP Advances
author_facet	Yuan Cheng Ke Zhang Le-Le Chen Wen-Jie Xu Qin Luo Min-Kang Zhou Zhong-Kun Hu
author_sort	Yuan Cheng
title	Low-phase noise and high-power laser for Bragg atom interferometer
title_short	Low-phase noise and high-power laser for Bragg atom interferometer
title_full	Low-phase noise and high-power laser for Bragg atom interferometer
title_fullStr	Low-phase noise and high-power laser for Bragg atom interferometer
title_full_unstemmed	Low-phase noise and high-power laser for Bragg atom interferometer
title_sort	low-phase noise and high-power laser for bragg atom interferometer
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2017-09-01
description	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 87Rb 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 5×10−9g at an integration time of 1200 s for gravity measurements.
url	http://dx.doi.org/10.1063/1.5001963
work_keys_str_mv	AT yuancheng lowphasenoiseandhighpowerlaserforbraggatominterferometer AT kezhang lowphasenoiseandhighpowerlaserforbraggatominterferometer AT lelechen lowphasenoiseandhighpowerlaserforbraggatominterferometer AT wenjiexu lowphasenoiseandhighpowerlaserforbraggatominterferometer AT qinluo lowphasenoiseandhighpowerlaserforbraggatominterferometer AT minkangzhou lowphasenoiseandhighpowerlaserforbraggatominterferometer AT zhongkunhu lowphasenoiseandhighpowerlaserforbraggatominterferometer
_version_	1725852323745366016

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

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