Gyroscopes: Ring Laser

Authored by: Sylvain Schwartz

Encyclopedia of Optical and Photonic Engineering

Print publication date:  September  2015
Online publication date:  September  2015

Print ISBN: 9781439850978
eBook ISBN: 9781351247184
Adobe ISBN:

10.1081/E-EOE2-120047139

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Abstract

In this Entry, we describe the basic principles underpinning the physics of the ring laser gyroscope. After a short introduction to the Sagnac effect, we describe the operating principles of this rotation sensor, and discuss the main sources of performance limitation and the way they are usually circumvented. We also provide a brief comparison with the interferometric fiber-optic gyroscope, and discuss future prospects for optical gyroscopes in the short to medium term.

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