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

George A. Adib; Yasser M. Sabry; Diaa Khalil

doi:10.1117/12.2288837

26 February 2018 Vernier effect-based multiplication of the Sagnac beating frequency in ring laser gyroscope sensors

George A. Adib, Yasser M. Sabry, Diaa Khalil

Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 105121M (2018) https://doi.org/10.1117/12.2288837
Event: SPIE LASE, 2018, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

George A. Adib, Yasser M. Sabry, and Diaa Khalil "Vernier effect-based multiplication of the Sagnac beating frequency in ring laser gyroscope sensors", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105121M (26 February 2018); https://doi.org/10.1117/12.2288837

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available