Optical power measurement of a closed loop fiber optic...

Details Optical power measurement of a closed loop fiber optic... Optical power measurement of a closed loop fiber optic...

2007-11-13

2007-11-13

Turner, Samuel A. (Department: 2877)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

11105264

ABSTRACT:
This disclosure describes fiber optic gyroscopes that have integrated power measurement capabilities, and related methods and apparatus. More particularly, it describes determining the optical power of a fiber optic gyroscope (FOG) by temporarily adjusting the phase difference between two counter-propagating light beams, measuring the change in light intensity caused by the phase difference adjustment, and using the measured change in light intensity along with known characteristics of the FOG to compute an optical power value. The temporary adjustment in phase difference is preferably done in such a manner not to disturb the normal operation of the FOG.

REFERENCES:
patent: 4545682 (1985-10-01), Greenwood
patent: 4705399 (1987-11-01), Graindorge et al.
patent: 5116129 (1992-05-01), Ishigami
patent: 5141316 (1992-08-01), Lefevre et al.
patent: 2003/0169428 (2003-09-01), Lange
patent: 2003/0169956 (2003-09-01), Lange et al.
patent: 2004/0246487 (2004-12-01), Lehureau

Affiliated with

Also associated with

Rating

Optical power measurement of a closed loop fiber optic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical power measurement of a closed loop fiber optic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical power measurement of a closed loop fiber optic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3865521