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Proceedings Paper

Vernier effect-based multiplication of the Sagnac beating frequency in ring laser gyroscope sensors
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Paper Abstract

A multiplication method of the Sagnac effect scale factor in ring laser gyroscopes is presented based on the Vernier effect of a dual-coupler passive ring resonator coupled to the active ring. The multiplication occurs when the two rings have comparable lengths or integer multiples and their scale factors have opposite signs. In this case, and when the rings have similar areas, the scale factor is multiplied by ratio of their length to their length difference. The scale factor of the presented configuration is derived analytically and the lock-in effect is analyzed. The principle is demonstrated using optical fiber rings and semiconductor optical amplifier as gain medium. A scale factor multiplication by about 175 is experimentally measured, demonstrating larger than two orders of magnitude enhancement in the Sagnac effect scale factor for the first time in literature, up to the authors’ knowledge.

Paper Details

Date Published: 26 February 2018
PDF: 10 pages
Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105121M (26 February 2018);
Show Author Affiliations
George A. Adib, Ain Shams Univ. (Egypt)
Yasser M. Sabry, Ain Shams Univ. (Egypt)
Diaa Khalil, Ain Shams Univ. (Egypt)

Published in SPIE Proceedings Vol. 10512:
Fiber Lasers XV: Technology and Systems
Ingmar Hartl; Adrian L. Carter, Editor(s)

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