Design and operation of a very large ring laser gyroscope
- 20 April 1999
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 38 (12) , 2516-2523
- https://doi.org/10.1364/ao.38.002516
Abstract
The design and initial operation of a vertical square He–Ne ring laser G0 with a perimeter of 14 m is discussed. This builds on earlier demonstrations of the feasibility of large ring lasers (perimeter ∼4 m) for single-mode gyroscope operation and with lesser pulling than navigation gyroscopes. With servoing of the rf excitation to yield single-mode operation, G0 gave a quality factor 1 × 1012 and a Sagnac line with a frequency of 287.8 ± 1.0 Hz induced by Earth rotation ΩE. This has confirmed some vital questions over the feasibility of very large gyroscopes for geodetic measurements at the level of 10-9 ΩE.Keywords
This publication has 8 references indexed in Scilit:
- Precision stabilization of the optical frequency in a large ring laser gyroscopeApplied Optics, 1998
- Design of a triangular active ring laser 13 m on a sideApplied Optics, 1998
- Ring-laser tests of fundamental physics and geophysicsReports on Progress in Physics, 1997
- A Radio Reference FrameThe Astronomical Journal, 1995
- Harmonic analysis in a large ring laser with backscatter-induced pullingPhysical Review A, 1995
- A Kennedy-Thorndike experiment using LLR dataPhysics Letters A, 1995
- Lunar Laser Ranging: A Continuing Legacy of the Apollo ProgramScience, 1994
- Stability of planar ring lasers with mirror misalignmentApplied Optics, 1987