24 September 2005 Optimization of fiber-optic Sagnac interferometer for detection of rotational seismic events
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Proceedings Volume 5952, Optical Fibers: Applications; 59520V (2005); doi: 10.1117/12.620620
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland
Abstract
The optimization of fiber-optic Sagnac interferometer as a sensor for the investigation of seismic rotational waves is presented in this paper. The main parameter of this optimization is maximum system sensitivity for absolute rotation in the limited range of expected velocities. The main system construction bases on the FOG minimum configuration, however the detection by system only rotational velocity without covering it on angle changes needs other approach to this system. The presented in paper theoretical and experimental investigation shows that such system can be made on base of a standard single-mode optical fiber, however needs operation on depolarized light.
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Zbigniew Krajewski, Leszek R. Jaroszewicz, Lech Solarz, "Optimization of fiber-optic Sagnac interferometer for detection of rotational seismic events", Proc. SPIE 5952, Optical Fibers: Applications, 59520V (24 September 2005); doi: 10.1117/12.620620; https://doi.org/10.1117/12.620620
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KEYWORDS
Sensors

Polarization

Bismuth

Fiber optics

Fiber optic gyroscopes

Optical fibers

Sagnac interferometers

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