Polarization error suspension in fiber optic gyroscopes

Details Polarization error suspension in fiber optic gyroscopes Polarization error suspension in fiber optic gyroscopes

G - Physics

01

C

G01C 19/72 (2006.01)

Patent

CA 2355640

A fiber optic gyroscope having polarization error-correcting modulation. Polarization errors originate from the interference of primary waves and secondary cross-coupled waves. Although these error signals are very difficult to remove modulation signals may be applied to the integrated optics chip that minimize the total error over a period of time. By providing distinct but inter-related modulation signals to opposing inputs of the sensing coil, the various polarization errors can be averaged to zero over the period of the modulation signals.

Cette invention se rapporte à un gyroscope à fibres optiques avec modulation de correction des erreurs de polarisation. Les erreurs de polarisation proviennent de l'interférence des ondes primaires et des ondes de couplage croisé secondaires. Bien que ces signaux d'erreur soient très difficiles à éliminer, des signaux de modulation peuvent être appliqués à la puce de l'optique intégrée pour réduire au minimum l'erreur totale sur une période. En fournissant des signaux de modulation distincts mais reliés entre eux aux entrées opposées de la bobine de détection, les diverses erreurs de polarisation peuvent être réduites à une moyenne de zéro sur la période des signaux de modulation.

Affiliated with

Also associated with

Rating

Polarization error suspension in fiber optic gyroscopes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polarization error suspension in fiber optic gyroscopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization error suspension in fiber optic gyroscopes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1661895