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http://dx.doi.org/10.3807/KJOP.2003.14.2.155

Noise characteristics of a depolarized fiber-optic gyroscope incorporating single-mode fiber  

Jin, Young-Jun (Department of Physics, Chonbuk National University)
Park, Tae-Yong (Department of Physics, Chonbuk National University)
Park, Hee-Gap (Department of Physics, Chonbuk National University)
Publication Information
Korean Journal of Optics and Photonics / v.14, no.2, 2003 , pp. 155-160 More about this Journal
Abstract
We have constructed and characterized a depolarized fiber-optic gyroscope that uses a length of single-mode fiber as a sensing loop fiber. We have also calculated the noise characteristics of the gyroscope and have found an optimum phase modulation depth that gives the highest signal-to-noise ratio in the gyroscope. The random walk coefficient as small as 0.7$\times$10$^{-3}$ deg/√hr was obtained at the modulation depth of around 2.4 rad. The random walk coefficients measured at various modulation depths were found to be in reasonable agreement with the calculation.
Keywords
fiber optic gyroscope; optical fiber; optical fiber sensor;
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