Single-Source Multiaxis Cold-Atom Interferometer in a Centimeter-Scale Cell

Yun-Jhih Chen, Azure Hansen, Gregory W. Hoth, Eugene Ivanov, Bruno Pelle, John Kitching, Elizabeth A. Donley

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Using point-source atom interferometry (PSI), we characterize the sensitivity of a multiaxis gyroscope based on free-space Raman interrogation of a single source of cold atoms in a glass vacuum cell. The instrument simultaneously measures the acceleration in the direction of the Raman-laser beams and the projection of the rotation vector onto the plane perpendicular to that direction. The sensitivities for the magnitude and direction of the rotation-vector measurement are 0.033 degrees/s and 0.27 degrees with an averaging time of 1 s, respectively. The fractional acceleration sensitivity delta g/g is 1.6 x 10(-5)/root Hz. The sensitivity can be increased by increasing the Raman interrogation time, allowing the cold-atom cloud to expand further, correcting the fluctuations in the initial cloud shape, and reducing sources of technical noise. PSI resolves a rotation vector in a plane by measuring a phase gradient. This two-dimensional rotation sensitivity may be specifically important for applications such as tracking the precession of a rotation vector and gyrocompassing.

Original languageEnglish
Article number014019
Number of pages10
JournalPhysical Review Applied
Volume12
Issue number1
DOIs
Publication statusPublished - 11 Jul 2019

Cite this

Chen, Y-J., Hansen, A., Hoth, G. W., Ivanov, E., Pelle, B., Kitching, J., & Donley, E. A. (2019). Single-Source Multiaxis Cold-Atom Interferometer in a Centimeter-Scale Cell. Physical Review Applied, 12(1), [014019]. https://doi.org/10.1103/PhysRevApplied.12.014019
Chen, Yun-Jhih ; Hansen, Azure ; Hoth, Gregory W. ; Ivanov, Eugene ; Pelle, Bruno ; Kitching, John ; Donley, Elizabeth A. / Single-Source Multiaxis Cold-Atom Interferometer in a Centimeter-Scale Cell. In: Physical Review Applied. 2019 ; Vol. 12, No. 1.
@article{403c5f002e9f4fee82a0682e862a1451,
title = "Single-Source Multiaxis Cold-Atom Interferometer in a Centimeter-Scale Cell",
abstract = "Using point-source atom interferometry (PSI), we characterize the sensitivity of a multiaxis gyroscope based on free-space Raman interrogation of a single source of cold atoms in a glass vacuum cell. The instrument simultaneously measures the acceleration in the direction of the Raman-laser beams and the projection of the rotation vector onto the plane perpendicular to that direction. The sensitivities for the magnitude and direction of the rotation-vector measurement are 0.033 degrees/s and 0.27 degrees with an averaging time of 1 s, respectively. The fractional acceleration sensitivity delta g/g is 1.6 x 10(-5)/root Hz. The sensitivity can be increased by increasing the Raman interrogation time, allowing the cold-atom cloud to expand further, correcting the fluctuations in the initial cloud shape, and reducing sources of technical noise. PSI resolves a rotation vector in a plane by measuring a phase gradient. This two-dimensional rotation sensitivity may be specifically important for applications such as tracking the precession of a rotation vector and gyrocompassing.",
keywords = "LASER SYSTEM, DIODE-LASER",
author = "Yun-Jhih Chen and Azure Hansen and Hoth, {Gregory W.} and Eugene Ivanov and Bruno Pelle and John Kitching and Donley, {Elizabeth A.}",
year = "2019",
month = "7",
day = "11",
doi = "10.1103/PhysRevApplied.12.014019",
language = "English",
volume = "12",
journal = "Physical Review Applied",
issn = "2331-7019",
publisher = "American Physical Society",
number = "1",

}

Single-Source Multiaxis Cold-Atom Interferometer in a Centimeter-Scale Cell. / Chen, Yun-Jhih; Hansen, Azure; Hoth, Gregory W.; Ivanov, Eugene; Pelle, Bruno; Kitching, John; Donley, Elizabeth A.

In: Physical Review Applied, Vol. 12, No. 1, 014019, 11.07.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Single-Source Multiaxis Cold-Atom Interferometer in a Centimeter-Scale Cell

AU - Chen, Yun-Jhih

AU - Hansen, Azure

AU - Hoth, Gregory W.

AU - Ivanov, Eugene

AU - Pelle, Bruno

AU - Kitching, John

AU - Donley, Elizabeth A.

PY - 2019/7/11

Y1 - 2019/7/11

N2 - Using point-source atom interferometry (PSI), we characterize the sensitivity of a multiaxis gyroscope based on free-space Raman interrogation of a single source of cold atoms in a glass vacuum cell. The instrument simultaneously measures the acceleration in the direction of the Raman-laser beams and the projection of the rotation vector onto the plane perpendicular to that direction. The sensitivities for the magnitude and direction of the rotation-vector measurement are 0.033 degrees/s and 0.27 degrees with an averaging time of 1 s, respectively. The fractional acceleration sensitivity delta g/g is 1.6 x 10(-5)/root Hz. The sensitivity can be increased by increasing the Raman interrogation time, allowing the cold-atom cloud to expand further, correcting the fluctuations in the initial cloud shape, and reducing sources of technical noise. PSI resolves a rotation vector in a plane by measuring a phase gradient. This two-dimensional rotation sensitivity may be specifically important for applications such as tracking the precession of a rotation vector and gyrocompassing.

AB - Using point-source atom interferometry (PSI), we characterize the sensitivity of a multiaxis gyroscope based on free-space Raman interrogation of a single source of cold atoms in a glass vacuum cell. The instrument simultaneously measures the acceleration in the direction of the Raman-laser beams and the projection of the rotation vector onto the plane perpendicular to that direction. The sensitivities for the magnitude and direction of the rotation-vector measurement are 0.033 degrees/s and 0.27 degrees with an averaging time of 1 s, respectively. The fractional acceleration sensitivity delta g/g is 1.6 x 10(-5)/root Hz. The sensitivity can be increased by increasing the Raman interrogation time, allowing the cold-atom cloud to expand further, correcting the fluctuations in the initial cloud shape, and reducing sources of technical noise. PSI resolves a rotation vector in a plane by measuring a phase gradient. This two-dimensional rotation sensitivity may be specifically important for applications such as tracking the precession of a rotation vector and gyrocompassing.

KW - LASER SYSTEM

KW - DIODE-LASER

U2 - 10.1103/PhysRevApplied.12.014019

DO - 10.1103/PhysRevApplied.12.014019

M3 - Article

VL - 12

JO - Physical Review Applied

JF - Physical Review Applied

SN - 2331-7019

IS - 1

M1 - 014019

ER -