CaltechAUTHORS
Published June 2020 | Version Supplemental Material
Journal Article Open

Earth rotation measured by a chip-scale ring laser gyroscope

Creators

  • 1. ROR icon California Institute of Technology
  • 2. ROR icon OEwaves (United States)
  • 3. ROR icon MIT-Harvard Center for Ultracold Atoms
  • 4. ROR icon Hqphotonics (United States)
  • 5. ROR icon Apple (United States)

Abstract

Optical gyroscopes are among the most accurate rotation measuring devices and are widely used for navigation and accurate pointing. Since the advent of photonic integrated components for communications, and with their increasing complexity, there has been interest in the possibility of chip-scale optical gyroscopes. Besides the potential benefits of integration, such solid-state systems would be robust and resistant to shock. Here, we report a gyroscope using Brillouin ring lasers on a silicon chip. Its stability and sensitivity enable measurement of Earth's rotation, representing a major milestone for this new class of gyroscope.

Additional Information

© 2020 Springer Nature Limited. Received 16 September 2019; Accepted 10 January 2020; Published 17 February 2020. We thank the Defense Advanced Research Projects Agency (DARPA) for financial support (N66001-16-1-4046) and A. Chern, C.-L. Liu, L. Peng and X. Yi at Caltech for helpful discussions. We also gratefully acknowledge the critical support and infrastructure provided for this work by The Kavli Nanoscience Institute at Caltech. Data availability: The data that support the plots within this paper and other findings of this study are available from the corresponding author upon reasonable request. Code availability: The code that supports the plots within this paper and other findings of this study is available from the corresponding author upon reasonable request. Author Contributions: Y.-H.L., M.-G.S., J.L. and K.V. conceived the offset-counter-pumped SBL gyroscope for the Earth rotation measurement; M.-G.S. fabricated the microresonator devices; Y.-H.L. and M.-G.S. conducted the measurement, with assistance from J.L., Y.-K.L., B.S., Q.-F.Y., S.H.L. and K.Y.Y.; Y.-H.L., M.-G.S. and K.V. analysed the data; Y.-H.L., Y.-K.L. and K.V. derived the theory; H.W. provided the Kerr linewidth analysis; Y.-H.L., M.-G.S. and K.V. contributed to writing the manuscript; K.V. supervised the project. The authors declare no competing interests.

Errata

In the version of this Letter originally published online, in the Acknowledgements, the following sentence was missing "We also gratefully acknowledge the critical support and infrastructure provided for this work by The Kavli Nanoscience Institute at Caltech." It has now been added.

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Additional details

Identifiers

Eprint ID
100438
Resolver ID
CaltechAUTHORS:20200101-104456130

Related works

Describes
10.1038/s41566-020-0622-0 (DOI)

Funding

Defense Advanced Research Projects Agency (DARPA)
Office of Naval Research (ONR)
N66001-16-1-4046

Dates

Created
2020-02-18
Created from EPrint's datestamp field
Updated
2023-06-01
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Kavli Nanoscience Institute