Two-wavelength fibre gyroscope with wide dynamic range
- 28 August 1986
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 22 (18) , 935-937
- https://doi.org/10.1049/el:19860637
Abstract
An optical fibre gyroscope configuration which utilises dual-wavelength determination of the Sagnac shift is described. It is shown that this provides a means of extending the unambiguous rotation sensing range, and thus the dynamic range, of the gyroscope. Using an all-fibre system and sources at wavelengths of 812 nm and 842 nm, an increase in unambiguous sensing range of approximately 27 times is demonstrated.Keywords
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