Closed loop, depolarized interferometric fiber optic (IFOG) gyro

Details Closed loop, depolarized interferometric fiber optic (IFOG) gyro Closed loop, depolarized interferometric fiber optic (IFOG) gyro

1990-06-04

1994-06-14

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1966

Patent

active

053215036

ABSTRACT:
An interferometric fiber optic gyroscope employing an integrated, width pshed, optic chip containing annealed proton exchange waveguides and a Mach-Zehnder interferometer for sensing a ramp induced signal from loop closing electronics to achieve a highly improved gyroscope scale factor linearity and dynamic range. An edge light emitting diode (ELED) operating at 1.3.mu. wavelength is employed as the light source in the gyroscope. A decorrelator optical fiber segment is employed between the light source and the chip, and a Lyot depolarizer optical fiber segment is employed between the chip and one side of the fiber optic coil. Also, an intermediate output of the loop closing electronics is shown to have reduced scale factor sensitivity to light source wavelength change.

REFERENCES:
patent: 4662751 (1987-05-01), Goss et al.
patent: 4735506 (1988-04-01), Pavlath
patent: 5018859 (1991-05-01), Chang et al.

Affiliated with

Also associated with

Rating

Closed loop, depolarized interferometric fiber optic (IFOG) gyro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Closed loop, depolarized interferometric fiber optic (IFOG) gyro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed loop, depolarized interferometric fiber optic (IFOG) gyro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1253187