Integrated optic interferometric fiber gyroscope module and meth

Details Integrated optic interferometric fiber gyroscope module and meth Integrated optic interferometric fiber gyroscope module and meth

1989-09-25

1991-08-06

Turner, Samuel

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

385 14, G01B 902

Patent

active

050372050

ABSTRACT:
An integrated optics chip which is the central module for an interferometric gyro. The invention configuration performs bias reduction, noise reduction, and improves scale factor linearity and repeatability. The chip is fabricated in an electro-optic material using conventional waveguide fabrication techniques, for example, titanium infusion into LiNbO.sub.3. Light propagating into the chip from a source is split equally between two legs which are coupled to optical fibers. Similarly light propagating in the legs may be coupled together and the combined signal coupled into an optical fiber.

REFERENCES:
patent: 4265514 (1981-05-01), Leclerc et al.
patent: 4400088 (1983-08-01), Schiffner et al.
patent: 4468085 (1984-08-01), Papuchon et al.
patent: 4514088 (1985-04-01), Coccoli
patent: 4591269 (1986-05-01), Mohr
patent: 4881817 (1989-11-01), Kim et al.

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