Fiber optic gyroscope using optical waveguide couplers

Details Fiber optic gyroscope using optical waveguide couplers Fiber optic gyroscope using optical waveguide couplers

1990-02-09

1992-02-04

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

350 9611, 350 962, G01C 1964, G02B 612

Patent

active

050855018

ABSTRACT:
In a fiber optic gyroscope in which light from a light source is split into two beams for supply to one and the other end of an optical fiber coil respectively, and the two beams having propagated through the optical fiber coil and emitted the one and the other end thereof are coupled together for supply to a photodetector, there are separately formed on an optical integrated circuit substrate two optical waveguide couplers, each comprising a trunk and a pair of branches extending therefrom. The pair of branches of a first one of the two optical waveguide couplers are connected to the light source and the photodetector, respectively, and the pair of branches of the second optical waveguide coupler are connected to the one and the other end of the optical fiber coil, respectively. The trunks of the first and second optical waveguide couplers are interconnected via a connecting optical fiber. The optical integrated circuit substrate is fixed to a reinforcing plate of a material which has a thermal expansion coefficient nearly equal to that of the optical integrated circuit substrate. The reinforcing plate is held on a support structure by flexible holding means.

REFERENCES:
patent: 4170399 (1979-10-01), Hansen et al.
patent: 4265541 (1981-05-01), Leclerc et al.
patent: 4588296 (1986-05-01), Cahill et al.
patent: 4750800 (1988-06-01), Fournier et al.

Affiliated with

Also associated with

Rating

Fiber optic gyroscope using optical waveguide couplers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fiber optic gyroscope using optical waveguide couplers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic gyroscope using optical waveguide couplers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-344026