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Proceedings Paper

Drift caused by phase-modulator nonlinearities in fiber gyroscopes
Author(s): Sidney L. Alessi Carrara
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Paper Abstract

Imperfections of a phase modulator driven below the proper modulation frequency of a fiber gyroscope can cause offset of the output signal, limiting long term stability. Bias drift induced by non-linear effects in the phase modulator was studied and altenative ways of stabilizing a short loop length gyro were implemented. Long term drift figures below 0.2°/h rms were achieved in a highly birefringent fiber gyro with a 160 m-long sensing spool.

Paper Details

Date Published: 1 August 1990
PDF: 5 pages
Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); doi: 10.1117/12.20305
Show Author Affiliations
Sidney L. Alessi Carrara, Instituto Estudos Avancados (Brazil)


Published in SPIE Proceedings Vol. 1267:
Fiber Optic Sensors IV
Ralf Th. Kersten, Editor(s)

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