The Effects Of Imperfect Serrodyne Modulation On The Performance Of Closed-Loop Fiber-Optic Gyroscopes

R. Y. Liu

doi:10.1117/12.948867

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1 February 1989 The Effects Of Imperfect Serrodyne Modulation On The Performance Of Closed-Loop Fiber-Optic Gyroscopes

R. Y. Liu

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Proceedings Volume 0985, Fiber Optic and Laser Sensors VI; (1989) https://doi.org/10.1117/12.948867
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

Two major error sources associated with the scale-factor linearity of serrodyne closed-loop1,2 fiber-optic gyroscope are the stability of light source wavelength, and the perfection of loop-closure compo-nents and the associated driving electronics. LiNbO₃ phase modulators3,4,5 are currently the most promising devices as the loop-closure component due to their wide bandwidth, large modulation index, and baseband operation. However, the non-ideal serrodyne driv-ing waveform, and the undesired amplitude modulation effects of LiNbO3 phase modulator, result in multiple sideband generations which limit the scale-factor linearity of serrodyne closed-loop fiber-optic gyroscopes.

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R. Y. Liu "The Effects Of Imperfect Serrodyne Modulation On The Performance Of Closed-Loop Fiber-Optic Gyroscopes", Proc. SPIE 0985, Fiber Optic and Laser Sensors VI, (1 February 1989); https://doi.org/10.1117/12.948867

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