Abstract
The intrinsic qualities of fiber optic components have improved the sensitivity of single mode fiber gyroscopes reported to date[l]. We investigate the residual sources of short term noise and long term drift and discuss the solutions adopted to reduce their effects. We have used the reciprocal configuration [2–4] of the fiber Sagnac interferometer to avoid phase shifts due to changes in birefringence of the fiber coil. Bulk optic beamsplitters, polarizers and birefringent plates have been replaced by fiber optic directional couplers [5], polarizers [6] and polarization controllers [7], fabricated on a single continuous strand of fiber (Fig.1). The biased rotation signal is obtained with a delayed reciprocal phase modulation technique [3,4] which, theoretically, allows one a very good bias stability.
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References
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© 1982 Springer-Verlag Berlin Heidelberg
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Bergh, R.A., Lefèvre, H.C., Shaw, H.J. (1982). All Single Mode Fiber Optic Gyroscope. In: Ezekiel, S., Arditty, H.J. (eds) Fiber-Optic Rotation Sensors and Related Technologies. Springer Series in Optical Sciences, vol 32. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39490-7_28
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DOI: https://doi.org/10.1007/978-3-540-39490-7_28
Publisher Name: Springer, Berlin, Heidelberg
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