| 摘要 |
A method is disclosed which reduces wavelength ripple in a fiber optic gyroscope by suppressing, as well as reducing the effects of, whispering gallery modes generated by the gyroscope light source. The method functions to increase the radius of bends in existing curved sections of optical fiber used in the light source for a fiber optic gyroscope. This increase in bend radius effectively reduces the amount of core-to-clad-to-core reflected light, which in turn reduces the extent to which whispering gallery modes are generated, thereby reducing a source of wavelength ripple. Reduction of wavelength ripple is also accomplished in the present invention by using a band rejection filter to attenuate one of the bimodal spectral components generated by the gyroscope light source.
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