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Proceedings Paper

A Laser Feedback Control Design For Passive Ring Laser Gyros In A Very High Finesse Cavity
Author(s): Mark A. Lorenz; Gerald L. Shaw; Daniel J. Biezad
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Paper Abstract

High finesse resonant cavities proposed for use in large passive resonant ring laser gyroscopes exhibit linewidths significantly narrower than commercially available frequency stablized lasers. For PRRLG applications, this can limit the performance due to the decreased signal-to-noise ratio. In this paper, a unique design for a PRRLG is presented, whereby the linewidth of a He-Ne laser is narrowed by frequency locking the laser to a 25,000 finesse, 169 cm2, resonant cavity. A resulting random error of 0.0078 Earth Rate Units (ERU) was achieved for an averaging time of 10 seconds. Extrapolation of the performance to a much larger PRRLG indicates that desired sensitivities for precision rate sensor testing and general relativity experiments is attainable.

Paper Details

Date Published: 25 November 1986
PDF: 7 pages
Proc. SPIE 0661, Optical Testing and Metrology, (25 November 1986); doi: 10.1117/12.938607
Show Author Affiliations
Mark A. Lorenz, United States Air Force Academy (United States)
Gerald L. Shaw, United States Air Force Academy (United States)
Daniel J. Biezad, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0661:
Optical Testing and Metrology
Chander Prakash Grover, Editor(s)

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