Pseudo Heterodyne Type Optical Fiber Gyro Stabilization by Higher Order Waves Comparison

Hiroaki MIYAGI  Hiroyuki HOSHINO  Tadashi KIMURA  Ken-ichi NODA  

IEICE TRANSACTIONS (1976-1990)   Vol.E69   No.4   pp.409-411
Publication Date: 1986/04/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: Special Section LETTER (Special Issue: Papers from 1986 National Convention IECE Japan)
Category: Optical Measurement and Others

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In an optical fiber gyroscope consisting of sensing fiber coil, an optical phase modulator and an electronic switching circuit for Sagnac phase shift detection, a ratio of the second and the fourth harmonics in the detected output signal is used to control the modulation index. Experimental results show improved operation with stabilized scale factor.